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DDD Domain Driven Design schema 2024 xxx

The document outlines the preparation for a journey towards microservices using Wardley Maps and discusses key trends in the microservices architecture market, highlighting its projected growth and the importance of domain-driven design (DDD). It emphasizes concepts such as loose coupling, high cohesion, and service discovery, alongside mapping user needs and components to fulfill those needs using Wardley Maps' evolution and value chain approach. Additionally, it stresses the strategic and tactical design principles for organizing microservices while taking into account the problem space and solution space.

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Preparing For a Future Microservices Journey Using Wardley Maps Susanne Kaiser Independent Tech Consultant @suksr DDD &
Source: https://www.marketresearchfuture.com/reports/microservices-architecture-market-3149 Microservices Architecture Market Key Trends Loose Coupling Deployment Domain Driven Design 2016 2017 2018 2019 2020 2021 2022 2023 USD ~33 Billion Market Size (USD Billion) CAGR ~17%
Source: https://www.infoq.com/articles/architecture-trends-2019/
Source: https://www.infoq.com/articles/architecture-trends-2019/
Source: https://en.wikipedia.org/wiki/Hype_cycle#/media/File:Gartner_Hype_Cycle.svg Microservices ? Gartner Hype Cycle
@suksr
@suksr High cohesion within a service Loose coupling between services
@suksr High cohesion within a service Loose coupling between services
@suksr Data Store
Data Store @suksr Config./Setup Maintenance Integration
Hardware O/S Virtualization Container Runtime @suksr
API Hardware O/S Virtualization Container Runtime @suksr
API Hardware O/S Virtualization Container Runtime @suksr API API Integration
API Hardware O/S Virtualization Container Runtime @suksr API API Security
API API API Service Discovery 1. Register 3. Connect 2. Discover Hardware O/S Virtualization Container Runtime @suksr
API API API Service Discovery Load-Balancer Hardware O/S Virtualization Container Runtime @suksr
API API API Service Discovery API Timeout-Handling Hardware O/S Virtualization Container Runtime @suksr Load-Balancer
API API API Service Discovery API Timeout-Handling Retries Hardware O/S Virtualization Container Runtime @suksr Load-Balancer
API API API Service Discovery API Timeout-Handling Retries Idempotency Hardware O/S Virtualization Container Runtime @suksr Load-Balancer
API API API Service Discovery API Timeout-Handling Retries Bulk- heads Hardware O/S Virtualization Container Runtime @suksr Load-Balancer Idempotency
API API API Service Discovery API Timeout-Handling Retries Bulk- Heads Circuit Breaker Hardware O/S Virtualization Container Runtime @suksr Load-Balancer Idempotency
API API API Service Discovery API Timeout-Handling Retries Bulk- heads Circuit Breaker Message Broker Hardware O/S Virtualization Container Runtime @suksr Load-Balancer Idempotency
API API API Service Discovery Load-Balancer API Timeout-Handling Retries Bulk- heads Circuit Breaker Message Broker API-Gateway Hardware O/S Virtualization Container Runtime @suksr Idempotency
API API API Service Discovery API Timeout-Handling Retries Bulk- heads Message Broker API-Gateway Circuit Breaker Config-Mngmt. Hardware O/S Virtualization Container Runtime @suksr Load-Balancer Idempotency
API API API Service Discovery API Timeout-Handling Retries Bulk- heads Message Broker API-Gateway Circuit Breaker Config-Mngmt. Monitoring Log Aggreation Metrics Distributed Tracing Health Checks Hardware O/S Virtualization Container Runtime @suksr Load-Balancer Idempotency
API API API Service Discovery API Timeout-Handling Retries Bulk- heads Message Broker API-Gateway Circuit Breaker Config-Mngmt. Monitoring Log Aggreation Metrics Distributed Tracing Health Checks SCM Checkout Test Build CI/CD Pipeline Deploy Hardware O/S Virtualization Container Runtime @suksr Load-Balancer Idempotency
Recovery API API API Service Discovery API Timeout-Handling Retries Bulk- heads Message Broker API-Gateway Circuit Breaker Config-Mngmt. Monitoring Log Aggreation Metrics Distributed Tracing Health Checks SCM Checkout Test Build CI/CD Pipeline Deploy Hardware O/S Virtualization Container Runtime Backup @suksr Load-Balancer Scaling Idempotency
µService @suksr
Hardware Data Store API API-Gateway Service Discovery Load-Balancer Message Broker Timeout-Handling Retries Idempotency Bulkheads Circuit Breaker Config-Mngmt. Monitoring Log Aggreation Metrics Distributed Tracing Health Checks SCM O/S Virtualization Container Runtime Checkout Test Build CI/CD Pipeline Deploy µService Backup Recovery @suksr Scaling Maintenance Integration Security
Domain Driven Design (DDD) – Terminology Strategic Design Tactical Design Bounded Context Ubiquitous Language Core Subdomain Supporting Subdomain Generic Subdomain Problem Space Solution Space Context Maps Anti-Corruption Layer Shared Kernel Open Host Service Separate Ways Partnership Customer-Supplier Conformist Domain Model Entity Value Object Aggregate Repository Factory Application Service Domain Service Domain Event @suksr
Hardware Data Store API API-Gateway Service Discovery Load-Balancer Message Broker Timeout-Handling Retries Idempotency Bulkheads Circuit Breaker Config-Mngmt. Monitoring Log Aggreation Metrics Distributed Tracing Health Checks SCM O/S Virtualization Container Runtime Checkout Test Build CI/CD Pipeline Deploy µService Backup Recovery Scaling Maintenance Integration Security Strategic Design Tactical Design Problem Space Solution Space Bounded Context Ubiquitous Language Core Subdomain Supporting Subdomain Generic Subdomain Context Maps Anti-Corruption Layer Shared Kernel Open Host Service Separate Ways Partnership Customer-Supplier Conformist Domain Model Entity Value Object Aggregate Repository Factory Application Service Domain Service Domain Event @suksr
Value Chain Invisible Visible Evolution Visualisation of a value chain’s evolution Genesis Custom-Built Product (+rental) Commodity (+utility) Position Movement Wardley Maps BY SIMON WARDLEY Uncharted Industrialised @suksr
Wardley Maps – VALUE CHAIN Who are your users? Value Chain Invisible Visible @suksr
Wardley Maps – VALUE CHAIN Who are your users? What are your users’ needs? Value Chain Invisible Visible @suksr
Wardley Maps – VALUE CHAIN Who are your users? What are your users’ needs? What are the components/activities to fulfill your users’ needs incl. dependencies? Value Chain Invisible Visible Position @suksr
Wardley Maps – LANDSCAPE Value Chain Invisible Visible Evolution Components along evolution axes Genesis Custom-Built Product (+rental) Commodity (+utility) Position Movement @suksr
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Everything evolves Past Current Future Supply Competition Demand Competition Uncharted Industrialised Wardley Maps – PATTERNS Movement @suksr
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Everything evolves Past Current Future Continuous adaption Wardley Maps – PATTERNS Movement Evolution @suksr
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Past Current Future Characteristics change Uncharted Undefined market Uncertain Unpredictable Rare Poorly understood Forming market Learning on use Increasing understanding Slowly increasing consumption Rapid increases in learning Growing market Learning on operation Increasing education Rapidly increasing consumption Rapid increase in use Mature market Known / accepted Stable Widespread and stabilising Commonly understood (in term of use) Industrialised Wardley Maps – PATTERNS Movement @suksr
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Efficiency enables innovation Uncharted Industrialised Wardley Maps – PATTERNS Movement @suksr
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Efficiency enables innovation Uncharted Industrialised Wardley Maps – PATTERNS Movement @suksr
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Efficiency enables innovation Uncharted Industrialised Wardley Maps – PATTERNS Movement @suksr
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Efficiency enables innovation Uncharted Industrialised Wardley Maps – PATTERNS Movement @suksr
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Wardley Maps – PRINCIPLES Use appropriate methods per evolution stage Build in-house Use/buy off-the-shelf product Outsource to utility suppliers @suksr
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Use appropriate methods per evolution stage Wardley Maps – PRINCIPLES Build in-house Use/buy off-the-shelf product Outsource to utility suppliers @suksr
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Use appropriate methods per evolution stage Wardley Maps – PRINCIPLES Build in-house Use/buy off-the-shelf product Outsource to utility suppliers @suksr
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Know your users & focus on user needs Wardley Maps – PRINCIPLES Build in-house / Agile Use/buy off-the-shelf product / Lean Outsource to utility suppliers / Six Sigma @suksr
Domain Driven Design Ubiquitous Language Domain Knowledge Understanding the problem domain first before solving it Problem Domain Domain Experts Development Teams Collaboration @suksr
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution DDD & Wardley Maps Problem Domain Strategic Design DDD Patterns & Practices Tactical Design @suksr Strategic Design Tactical Design
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution DDD & Wardley Maps Problem Domain Strategic Design DDD Patterns & Practices Tactical Design Analysing the business domain Discovering Subdomains Problem Space @suksr Problem Space Strategic Design Tactical Design Analyse & Discover
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution DDD & Wardley Maps Problem Domain Strategic Design DDD Patterns & Practices Tactical Design Analysing the business domain Discovering Subdomains Problem Space Decomposing into modular components (Bounded Contexts (BC)) Mapping interaction patterns between BC (Context Maps) Solution Space @suksr Problem Space Solution Space Strategic Design Tactical Design Analyse & Discover Decompose & Map High-Level Design Decisions
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution DDD & Wardley Maps Problem Domain Strategic Design DDD Patterns & Practices Tactical Design Architecting a solution fitting the problem domain as closely as possible Provides building blocks to implement domain model Analysing the business domain Discovering Subdomains Problem Space Decomposing into modular components (Bounded Contexts (BC) Mapping interaction patterns between BC (Context Maps) Solution Space @suksr Solution Space Problem Space Solution Space Strategic Design Tactical Design Analyse & Discover Architect & Implement High-Level Design Decisions Low-Level Design Decisions Decompose & Map
Analyse & Discover Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Distilling the problem domain & discovering the core subdomain DDD & Wardley Maps Core Subdomain Problem Domain STRATEGIC DESIGN (PROBLEM SPACE) Supporting Subdomain Generic Subdomain @suksr Problem Space Strategic Design
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Distilling the problem domain & discovering the core subdomain DDD & Wardley Maps Core Subdomain Problem Domain Competitive advantage Complex Changes often Build in-house STRATEGIC DESIGN (PROBLEM SPACE) Supporting Subdomain Generic Subdomain @suksr Analyse & Discover Problem Space Strategic Design Build in-house Use/buy off-the-shelf product Outsource to utility suppliers
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Distilling the problem domain & discovering the core subdomain DDD & Wardley Maps Core Subdomain Problem Domain Competitive advantage Complex Changes often Build in-house No competitive advantage Quite simple Does not change often Prefer to buy/use off-the-shelf STRATEGIC DESIGN (PROBLEM SPACE) Supporting Subdomain Generic Subdomain @suksr Analyse & Discover Problem Space Strategic Design Build in-house Use/buy off-the-shelf product Outsource to utility suppliers
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Distilling the problem domain & discovering the core subdomain DDD & Wardley Maps Core Subdomain Problem Domain Competitive advantage Complex Changes often Build in-house No competitive advantage Quite simple Does not change often Prefer to buy/use off-the-shelf No competitive advantage Generally complex Does not change often Buy/use off-the-shelf / outsource STRATEGIC DESIGN (PROBLEM SPACE) Supporting Subdomain Generic Subdomain @suksr Analyse & Discover Problem Space Strategic Design Build in-house Use/buy off-the-shelf product Outsource to utility suppliers
Decompose & Map Analyse & Discover Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Model Driven Design DDD & Wardley Maps STRATEGIC DESIGN (SOLUTION SPACE) Development Teams Domain Experts Ubiquitous Language Analysis Model Code Model Domain Model Core Subdomain Supporting Subdomain Generic Subdomain Problem Domain abstracted by @suksr Problem Space Solution Space Strategic Design
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Bounded Contexts DDD & Wardley Maps STRATEGIC DESIGN (SOLUTION SPACE) Core Subdomain Supporting Subdomain Generic Subdomain Problem Domain Linguistic/semantic boundary Ownership boundary Model integrity boundary Physical boundary Different architectural patterns per context possible @suksr Microservice candidates Decompose & Map Analyse & Discover Problem Space Strategic Design Solution Space
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Know your users & focus on user needs Submit Session DDD & Wardley Maps STRATEGIC DESIGN (PROBLEM SPACE) Speaker @suksr Analyse & Discover Problem Space Strategic Design
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps STRATEGIC DESIGN (PROBLEM SPACE) Discovering subdomains Supporting Generic Core @suksr Analyse & Discover Problem Space Strategic Design
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps STRATEGIC DESIGN (SOLUTION SPACE) Supporting Generic Core Event Evaluation Account Schedule Message Session Domain Models @suksr Decompose & Map Analyse & Discover Problem Space Solution Space Strategic Design
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core Event Evaluation Account Schedule Message Speaker Session CfP STRATEGIC DESIGN (SOLUTION SPACE) Domain Models @suksr Decompose & Map Analyse & Discover Problem Space Strategic Design Solution Space
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core Event Evaluation Account Schedule Message Speaker Profile Submitted Session CfP Settings Recipient Open CfP Evaluated Session Scheduled Session STRATEGIC DESIGN (SOLUTION SPACE) Domain Models @suksr Decompose & Map Analyse & Discover Problem Space Strategic Design Solution Space
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core STRATEGIC DESIGN (SOLUTION SPACE) Bounded Contexts Linguistic/semantic boundary Model integrity boundary Event Evaluation Account Schedule Message Submitted Session CfP Settings Recipient Open CfP Evaluated Session Scheduled Session Speaker Profile Session Evaluation Submission Handling Event Mngmnt. Schedule Mngmnt. Messaging Account Handling @suksr Decompose & Map Analyse & Discover Problem Space Strategic Design Solution Space
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core STRATEGIC DESIGN (SOLUTION SPACE) Submission Handling Event Mngmnt. Session Evaluation Messaging Account Handling Schedule Mngmnt. Bounded Contexts Ownership boundary Linguistic/semantic boundary Model integrity boundary @suksr Decompose & Map Analyse & Discover Problem Space Strategic Design Solution Space
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core STRATEGIC DESIGN (SOLUTION SPACE) Submission Handling Event Mngmnt. Session Evaluation Messaging Account Handling Schedule Mngmnt. Bounded Contexts Ownership boundary Linguistic/semantic boundary Model integrity boundary Physical boundary SCM Data store CI/CD Artefact @suksr Decompose & Map Analyse & Discover Problem Space Strategic Design Solution Space
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core TACTICAL DESIGN Submission Handling Event Mngmnt. Session Evaluation Messaging Account Handling Schedule Mngmnt. Architectural Patterns Architectural patterns can differ per Bounded Context, e.g. Layered Architecture Hexagonal Architecture CQRS @suksr Decompose & Map Analyse & Discover Problem Space Solution Space Strategic Design Tactical Design Architect & Implement
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core TACTICAL DESIGN Submission Handling Event Mngmnt. Session Evaluation Messaging Account Handling Schedule Mngmnt. Business Logic Implementation Patterns Business logic implementation patterns can differ per Bounded Context, e.g. Domain Model Active Record Transaction Script @suksr Decompose & Map Analyse & Discover Problem Space Solution Space Strategic Design Tactical Design Architect & Implement
Example BC: EVENT MANAGEMENT Event create: Event activate reschedule rename EventId id: string Name create: Name name: string EventStatus CREATED ACTIVATED DEACTIVATED deactivate Description create: Description desc: string Period create: Period start: Date end: Date Value Object Entity Aggregate Root Aggregate @suksr EventController MongoDBEventRepository EventModel EventApplicationService EventRepository POST /events/{id}/activate POST /events DELETE /events/{id} I n n e r O u t e r O u t s i d e (Port) (Adapter) (Adapter) (Port)
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core TACTICAL DESIGN Submission Handling Event Mngmnt. Session Evaluation Messaging Account Handling Schedule Mngmnt. DDD suits best for the core subdomain Movement Build in-house Use/buy off-the-shelf product Outsource to utility suppliers - or - - or - @suksr - or - Decompose & Map Analyse & Discover Problem Space Solution Space Strategic Design Tactical Design Architect & Implement
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Wardley Maps Supporting Generic Core INFRASTRUCTURE MAPPING @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Understand the involved components and their dependencies (position) Position Data Storage Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Understand the involved components and their dependencies (position) Data Storage Search Engine Wardley Maps INFRASTRUCTURE MAPPING Position Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Understand the involved components and their dependencies (position) Data Storage Search Engine Compute Platform Wardley Maps INFRASTRUCTURE MAPPING Position Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Understand the involved components and their dependencies (position) Data Storage Search Engine Compute Platform VM Wardley Maps INFRASTRUCTURE MAPPING Position Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Data Storage Search Engine Compute Platform VM Movement Plot components along evolution axes (movement) and use appropriate method per evolution stage Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Data Storage Search Engine Compute Platform VM Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Infrastructure & operational complexities Wardley Maps INFRASTRUCTURE MAPPING Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Data related components & activities Compute Platform Data Storage Search Engine VM Wardley Maps INFRASTRUCTURE MAPPING Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit DDD & Wardley Maps Supporting Generic Core TACTICAL DESIGN @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Search Engine Compute Platform Data Storage VM Service related components & activities Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Search Engine Compute Platform Data Storage VM Service interaction related components & activities Wardley Maps INFRASTRUCTURE MAPPING Infrastructure
command query Request-Driven @suksr API API Service Interactions
command query Request-Driven Message Broker publish subscribe Event-Driven @suksr API API Service Interactions
command query Message Broker publish subscribe command query Request-Driven Hybrid Message Broker publish subscribe Event-Driven @suksr API API API Service Interactions
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Search Engine Compute Platform Data Storage VM Request-driven related components & activities Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Compute Platform VM Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. Event-driven & hybrid related components & activities Message Broker Search Engine Data Storage Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Compute Platform VM Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. Message Broker Search Engine Data Storage Discuss & plan Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Compute Platform VM Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. Message Broker Search Engine Data Storage Discuss & plan Open Source Software Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS Example Message Broker Search Engine Data Storage Compute Platform VM Open Source Software Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS Message Broker Search Engine Data Storage Compute Platform VM Discuss & plan Offload to cloud hosted services Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS Compute Platform VM DB aaS SE aaS MB aaS Offload to cloud hosted services ID aaS Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS Compute Platform VM DB aaS SE aaS MB aaS Discuss & plan Offload to container orchestration platform ID aaS Infrastructure
Managed by YOU Managed by Platform Hardware O/S Virtualization Container Runtime O/S Orchestration µService Container Runtime µService Service Discovery Load Balancer Config-Mngmt. Monitoring Log Aggreation Health Checks Recovery Scaling @suksr Container Orchestration API Gateway
Containerized Microservice Pod Service Volume Deployment Master Node Worker Node Worker Node Ingress Deployment Deployment Container Orchestration BASIC COMPONENTS OF KUBERNETES
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS VM DB aaS MB aaS Worker Nodes Master Node SE aaS Container Orchestration w/ Kubernetes Compute Platform ID aaS
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS VM DB aaS MB aaS Worker Nodes Master Node SE aaS Container Orchestration w/ Kubernetes Compute Platform Pod Deploym. Volume Ingress Service New Primitives ID aaS
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS VM DB aaS MB aaS Worker Nodes Master Node SE aaS Container Orchestration w/ Kubernetes Compute Platform Pod Deploym. Volume Ingress Service Secret Stateful Set Cron Job Job Config Map Network Policy Replica Set Daemon Set Horizontal Pod Autoscaler Persistent Volume Claim Egress more ... ID aaS Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS VM DB aaS MB aaS Worker Nodes Master Node SE aaS Compute Platform Container Orchestration Discuss & plan Offload application networking concerns to a service mesh ID aaS Infrastructure
Circuit Breaker Timeout Retries Kubernetes / Service Mesh Sidecar Proxy Application Networking Concerns @suksr Metrics Security Sidecar Proxy Distributed Tracing Log Aggregation Separation Of Concerns SERVICE MESH
Proxy Proxy Microservice Microservice Policy & Telemetry (Mixer) Discovery & Config to Proxies (Pilot) Config (Galley) TLS Certs to Proxies (Citadel) Data Plane Control Plane HTTP, gRPC, TCP mTLS Service Mesh COMPONENTS OF ISTIO
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. VM DB aaS MB aaS Worker Nodes Master Node SE aaS Container Orchestration ID aaS Destination Rule Gateway Service Entry Policy ServiceRole / -Binding ClusterRbac Config Virtual Service Service Mesh Infrastructure
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. VM DB aaS MB aaS Worker Nodes Master Node SE aaS Container Orchestration ID aaS Service Mesh Discuss & plan Move to Serverless Infrastructure
Function Event Event-Driven Workflow Hardware Data Store O/S Virtualization Container Runtime Fully Managed By Third Party Ephemeral Function Pay-per-Execution Auto-Scaling @suksr triggers Serverless w/ FaaS CHARACTERISTICS
Lambda API Gateway SNS SQS DynamoDB Step Functions Core AWS Serverless Building Blocks S3 Kinesis CloudWatch Cognito @suksr IAM and more Serverless AWS BUILDING BLOCKS
ApiGatewayAdapter DynamoDBAdapter EventModel EventApplicationService EventRepository DynamoDB newEvent API Gateway Manage Event Organiser Event Management
ApiGatewayAdapter DynamoDBAdapter EventModel EventApplicationService EventRepository E v e n t P u b l i s h e r S N S T o p i c A d a p t e r DynamoDB SNS newEvent activateEvent API Gateway Manage Event Organiser Event Management
ApiGatewayAdapter DynamoDBAdapter EventModel EventApplicationService EventRepository E v e n t P u b l i s h e r S N S T o p i c A d a p t e r DynamoDB SNS newEvent activateEvent API Gateway Manage Event DynamoDBAdapter SessionModel SessionApplicationService SessionRepository DynamoDB S N S T o p i c A d a p t e r e v e n t A c t i v a t e d Organiser Event Management Session Handling
ApiGatewayAdapter DynamoDBAdapter EventModel EventApplicationService EventRepository E v e n t P u b l i s h e r S N S T o p i c A d a p t e r DynamoDB SNS newEvent activateEvent API Gateway Manage Event ApiGatewayAdapter DynamoDBAdapter SessionModel SessionApplicationService SessionRepository DynamoDB submitSession API Gateway Submit Session S N S T o p i c A d a p t e r e v e n t A c t i v a t e d S 3 A d a p t e r S3 pictureUploaded Organiser Speaker Event Management Session Handling
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core TACTICAL DESIGN Submission Handling Event Mngmnt. Session Evaluation Messaging Account Handling Schedule Mngmnt. Build in-house Use/buy off-the-shelf product Outsource to utility suppliers @suksr Problem Space Solution Space Strategic Design Tactical Design Serverless w/ FaaS API Gateway Lambda DynamoDB S3 SNS Cognito SE aaS Infrastructure
Serverless Infrastructure Providers
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Summary @suksr Know your users & user needs
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Summary Supporting Generic Core @suksr Decompose & Map Analyse & Discov. Problem Space Solution Sp. Strategic Design Know your users & user needs Understand the problem first and focus on core domain
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Summary Supporting Generic Core @suksr Decompose & Map Analyse & Discov. Problem Space Solution Space Strategic Design Tactical Design Architect & Implement - or - - or - - or - Know your users & user needs Understand the problem first and focus on core domain DDD suits well for your core domain
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Summary Supporting Generic Core @suksr Decompose & Map Analyse & Discov. Problem Space Solution Space Strategic Design Tactical Design Architect & Implement Infrastructure Know your users & user needs Understand the problem first and focus on core domain DDD suits well for your core domain Identify and outsource commodities
Value Chain Invisible Visible Genesis Custom-Built Product (+rental) Commodity (+utility) Evolution Summary Supporting Generic Core @suksr Decompose & Map Analyse & Discov. Problem Space Solution Space Strategic Design Tactical Design Architect & Implement Infrastructure Know your users & user needs Understand the problem first and focus on core domain DDD suits well for your core domain Identify and outsource commodities Efficiency enables innovation
Susanne Kaiser Independent Tech Consultant @suksr susanne@kaiser-consulting.net

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DDD Domain Driven Design schema 2024 xxx

  • 1.
    Preparing For aFuture Microservices Journey Using Wardley Maps Susanne Kaiser Independent Tech Consultant @suksr DDD &
  • 2.
    Source: https://www.marketresearchfuture.com/reports/microservices-architecture-market-3149 Microservices ArchitectureMarket Key Trends Loose Coupling Deployment Domain Driven Design 2016 2017 2018 2019 2020 2021 2022 2023 USD ~33 Billion Market Size (USD Billion) CAGR ~17%
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
    @suksr High cohesion within aservice Loose coupling between services
  • 8.
    @suksr High cohesion within aservice Loose coupling between services
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.
  • 14.
  • 15.
    API API API Service Discovery 1. Register 3.Connect 2. Discover Hardware O/S Virtualization Container Runtime @suksr
  • 16.
  • 17.
  • 18.
  • 19.
  • 20.
  • 21.
  • 22.
    API API API Service Discovery API Timeout-Handling Retries Bulk- heads Circuit Breaker MessageBroker Hardware O/S Virtualization Container Runtime @suksr Load-Balancer Idempotency
  • 23.
    API API API Service Discovery Load-Balancer API Timeout-Handling Retries Bulk- heads CircuitBreaker Message Broker API-Gateway Hardware O/S Virtualization Container Runtime @suksr Idempotency
  • 24.
    API API API Service Discovery API Timeout-Handling Retries Bulk- heads Message Broker API-Gateway CircuitBreaker Config-Mngmt. Hardware O/S Virtualization Container Runtime @suksr Load-Balancer Idempotency
  • 25.
    API API API Service Discovery API Timeout-Handling Retries Bulk- heads Message Broker API-Gateway CircuitBreaker Config-Mngmt. Monitoring Log Aggreation Metrics Distributed Tracing Health Checks Hardware O/S Virtualization Container Runtime @suksr Load-Balancer Idempotency
  • 26.
    API API API Service Discovery API Timeout-Handling Retries Bulk- heads Message Broker API-Gateway CircuitBreaker Config-Mngmt. Monitoring Log Aggreation Metrics Distributed Tracing Health Checks SCM Checkout Test Build CI/CD Pipeline Deploy Hardware O/S Virtualization Container Runtime @suksr Load-Balancer Idempotency
  • 27.
    Recovery API API API Service Discovery API Timeout-Handling Retries Bulk- heads Message Broker API-Gateway CircuitBreaker Config-Mngmt. Monitoring Log Aggreation Metrics Distributed Tracing Health Checks SCM Checkout Test Build CI/CD Pipeline Deploy Hardware O/S Virtualization Container Runtime Backup @suksr Load-Balancer Scaling Idempotency
  • 28.
  • 29.
    Hardware Data Store API API-Gateway ServiceDiscovery Load-Balancer Message Broker Timeout-Handling Retries Idempotency Bulkheads Circuit Breaker Config-Mngmt. Monitoring Log Aggreation Metrics Distributed Tracing Health Checks SCM O/S Virtualization Container Runtime Checkout Test Build CI/CD Pipeline Deploy µService Backup Recovery @suksr Scaling Maintenance Integration Security
  • 30.
    Domain Driven Design(DDD) – Terminology Strategic Design Tactical Design Bounded Context Ubiquitous Language Core Subdomain Supporting Subdomain Generic Subdomain Problem Space Solution Space Context Maps Anti-Corruption Layer Shared Kernel Open Host Service Separate Ways Partnership Customer-Supplier Conformist Domain Model Entity Value Object Aggregate Repository Factory Application Service Domain Service Domain Event @suksr
  • 31.
    Hardware Data Store API API-GatewayService Discovery Load-Balancer Message Broker Timeout-Handling Retries Idempotency Bulkheads Circuit Breaker Config-Mngmt. Monitoring Log Aggreation Metrics Distributed Tracing Health Checks SCM O/S Virtualization Container Runtime Checkout Test Build CI/CD Pipeline Deploy µService Backup Recovery Scaling Maintenance Integration Security Strategic Design Tactical Design Problem Space Solution Space Bounded Context Ubiquitous Language Core Subdomain Supporting Subdomain Generic Subdomain Context Maps Anti-Corruption Layer Shared Kernel Open Host Service Separate Ways Partnership Customer-Supplier Conformist Domain Model Entity Value Object Aggregate Repository Factory Application Service Domain Service Domain Event @suksr
  • 32.
    Value Chain Invisible Visible Evolution Visualisation of a valuechain’s evolution Genesis Custom-Built Product (+rental) Commodity (+utility) Position Movement Wardley Maps BY SIMON WARDLEY Uncharted Industrialised @suksr
  • 33.
    Wardley Maps –VALUE CHAIN Who are your users? Value Chain Invisible Visible @suksr
  • 34.
    Wardley Maps –VALUE CHAIN Who are your users? What are your users’ needs? Value Chain Invisible Visible @suksr
  • 35.
    Wardley Maps –VALUE CHAIN Who are your users? What are your users’ needs? What are the components/activities to fulfill your users’ needs incl. dependencies? Value Chain Invisible Visible Position @suksr
  • 36.
    Wardley Maps –LANDSCAPE Value Chain Invisible Visible Evolution Components along evolution axes Genesis Custom-Built Product (+rental) Commodity (+utility) Position Movement @suksr
  • 37.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Everything evolves Past Current Future Supply Competition Demand Competition Uncharted Industrialised Wardley Maps – PATTERNS Movement @suksr
  • 38.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Everything evolves Past Current Future Continuous adaption Wardley Maps – PATTERNS Movement Evolution @suksr
  • 39.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Past Current Future Characteristics change Uncharted Undefined market Uncertain Unpredictable Rare Poorly understood Forming market Learning on use Increasing understanding Slowly increasing consumption Rapid increases in learning Growing market Learning on operation Increasing education Rapidly increasing consumption Rapid increase in use Mature market Known / accepted Stable Widespread and stabilising Commonly understood (in term of use) Industrialised Wardley Maps – PATTERNS Movement @suksr
  • 40.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Efficiency enables innovation Uncharted Industrialised Wardley Maps – PATTERNS Movement @suksr
  • 41.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Efficiency enables innovation Uncharted Industrialised Wardley Maps – PATTERNS Movement @suksr
  • 42.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Efficiency enables innovation Uncharted Industrialised Wardley Maps – PATTERNS Movement @suksr
  • 43.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Efficiency enables innovation Uncharted Industrialised Wardley Maps – PATTERNS Movement @suksr
  • 44.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Wardley Maps – PRINCIPLES Use appropriate methods per evolution stage Build in-house Use/buy off-the-shelf product Outsource to utility suppliers @suksr
  • 45.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Use appropriate methods per evolution stage Wardley Maps – PRINCIPLES Build in-house Use/buy off-the-shelf product Outsource to utility suppliers @suksr
  • 46.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Use appropriate methods per evolution stage Wardley Maps – PRINCIPLES Build in-house Use/buy off-the-shelf product Outsource to utility suppliers @suksr
  • 47.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Know your users & focus on user needs Wardley Maps – PRINCIPLES Build in-house / Agile Use/buy off-the-shelf product / Lean Outsource to utility suppliers / Six Sigma @suksr
  • 48.
    Domain Driven Design UbiquitousLanguage Domain Knowledge Understanding the problem domain first before solving it Problem Domain Domain Experts Development Teams Collaboration @suksr
  • 49.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution DDD & Wardley Maps Problem Domain Strategic Design DDD Patterns & Practices Tactical Design @suksr Strategic Design Tactical Design
  • 50.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution DDD & Wardley Maps Problem Domain Strategic Design DDD Patterns & Practices Tactical Design Analysing the business domain Discovering Subdomains Problem Space @suksr Problem Space Strategic Design Tactical Design Analyse & Discover
  • 51.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution DDD & Wardley Maps Problem Domain Strategic Design DDD Patterns & Practices Tactical Design Analysing the business domain Discovering Subdomains Problem Space Decomposing into modular components (Bounded Contexts (BC)) Mapping interaction patterns between BC (Context Maps) Solution Space @suksr Problem Space Solution Space Strategic Design Tactical Design Analyse & Discover Decompose & Map High-Level Design Decisions
  • 52.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution DDD & Wardley Maps Problem Domain Strategic Design DDD Patterns & Practices Tactical Design Architecting a solution fitting the problem domain as closely as possible Provides building blocks to implement domain model Analysing the business domain Discovering Subdomains Problem Space Decomposing into modular components (Bounded Contexts (BC) Mapping interaction patterns between BC (Context Maps) Solution Space @suksr Solution Space Problem Space Solution Space Strategic Design Tactical Design Analyse & Discover Architect & Implement High-Level Design Decisions Low-Level Design Decisions Decompose & Map
  • 53.
    Analyse & Discover Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Distilling the problem domain & discovering the core subdomain DDD & Wardley Maps Core Subdomain Problem Domain STRATEGIC DESIGN (PROBLEM SPACE) Supporting Subdomain Generic Subdomain @suksr Problem Space Strategic Design
  • 54.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Distilling the problem domain & discovering the core subdomain DDD & Wardley Maps Core Subdomain Problem Domain Competitive advantage Complex Changes often Build in-house STRATEGIC DESIGN (PROBLEM SPACE) Supporting Subdomain Generic Subdomain @suksr Analyse & Discover Problem Space Strategic Design Build in-house Use/buy off-the-shelf product Outsource to utility suppliers
  • 55.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Distilling the problem domain & discovering the core subdomain DDD & Wardley Maps Core Subdomain Problem Domain Competitive advantage Complex Changes often Build in-house No competitive advantage Quite simple Does not change often Prefer to buy/use off-the-shelf STRATEGIC DESIGN (PROBLEM SPACE) Supporting Subdomain Generic Subdomain @suksr Analyse & Discover Problem Space Strategic Design Build in-house Use/buy off-the-shelf product Outsource to utility suppliers
  • 56.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Distilling the problem domain & discovering the core subdomain DDD & Wardley Maps Core Subdomain Problem Domain Competitive advantage Complex Changes often Build in-house No competitive advantage Quite simple Does not change often Prefer to buy/use off-the-shelf No competitive advantage Generally complex Does not change often Buy/use off-the-shelf / outsource STRATEGIC DESIGN (PROBLEM SPACE) Supporting Subdomain Generic Subdomain @suksr Analyse & Discover Problem Space Strategic Design Build in-house Use/buy off-the-shelf product Outsource to utility suppliers
  • 57.
    Decompose & Map Analyse & Discover Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Model Driven Design DDD & Wardley Maps STRATEGIC DESIGN (SOLUTION SPACE) Development Teams Domain Experts Ubiquitous Language Analysis Model Code Model Domain Model Core Subdomain Supporting Subdomain Generic Subdomain Problem Domain abstracted by @suksr Problem Space Solution Space Strategic Design
  • 58.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Bounded Contexts DDD & Wardley Maps STRATEGIC DESIGN (SOLUTION SPACE) Core Subdomain Supporting Subdomain Generic Subdomain Problem Domain Linguistic/semantic boundary Ownership boundary Model integrity boundary Physical boundary Different architectural patterns per context possible @suksr Microservice candidates Decompose & Map Analyse & Discover Problem Space Strategic Design Solution Space
  • 59.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Know your users & focus on user needs Submit Session DDD & Wardley Maps STRATEGIC DESIGN (PROBLEM SPACE) Speaker @suksr Analyse & Discover Problem Space Strategic Design
  • 60.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps STRATEGIC DESIGN (PROBLEM SPACE) Discovering subdomains Supporting Generic Core @suksr Analyse & Discover Problem Space Strategic Design
  • 61.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps STRATEGIC DESIGN (SOLUTION SPACE) Supporting Generic Core Event Evaluation Account Schedule Message Session Domain Models @suksr Decompose & Map Analyse & Discover Problem Space Solution Space Strategic Design
  • 62.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core Event Evaluation Account Schedule Message Speaker Session CfP STRATEGIC DESIGN (SOLUTION SPACE) Domain Models @suksr Decompose & Map Analyse & Discover Problem Space Strategic Design Solution Space
  • 63.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core Event Evaluation Account Schedule Message Speaker Profile Submitted Session CfP Settings Recipient Open CfP Evaluated Session Scheduled Session STRATEGIC DESIGN (SOLUTION SPACE) Domain Models @suksr Decompose & Map Analyse & Discover Problem Space Strategic Design Solution Space
  • 64.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core STRATEGIC DESIGN (SOLUTION SPACE) Bounded Contexts Linguistic/semantic boundary Model integrity boundary Event Evaluation Account Schedule Message Submitted Session CfP Settings Recipient Open CfP Evaluated Session Scheduled Session Speaker Profile Session Evaluation Submission Handling Event Mngmnt. Schedule Mngmnt. Messaging Account Handling @suksr Decompose & Map Analyse & Discover Problem Space Strategic Design Solution Space
  • 65.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core STRATEGIC DESIGN (SOLUTION SPACE) Submission Handling Event Mngmnt. Session Evaluation Messaging Account Handling Schedule Mngmnt. Bounded Contexts Ownership boundary Linguistic/semantic boundary Model integrity boundary @suksr Decompose & Map Analyse & Discover Problem Space Strategic Design Solution Space
  • 66.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core STRATEGIC DESIGN (SOLUTION SPACE) Submission Handling Event Mngmnt. Session Evaluation Messaging Account Handling Schedule Mngmnt. Bounded Contexts Ownership boundary Linguistic/semantic boundary Model integrity boundary Physical boundary SCM Data store CI/CD Artefact @suksr Decompose & Map Analyse & Discover Problem Space Strategic Design Solution Space
  • 67.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core TACTICAL DESIGN Submission Handling Event Mngmnt. Session Evaluation Messaging Account Handling Schedule Mngmnt. Architectural Patterns Architectural patterns can differ per Bounded Context, e.g. Layered Architecture Hexagonal Architecture CQRS @suksr Decompose & Map Analyse & Discover Problem Space Solution Space Strategic Design Tactical Design Architect & Implement
  • 68.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core TACTICAL DESIGN Submission Handling Event Mngmnt. Session Evaluation Messaging Account Handling Schedule Mngmnt. Business Logic Implementation Patterns Business logic implementation patterns can differ per Bounded Context, e.g. Domain Model Active Record Transaction Script @suksr Decompose & Map Analyse & Discover Problem Space Solution Space Strategic Design Tactical Design Architect & Implement
  • 69.
    Example BC: EVENT MANAGEMENT Event create:Event activate reschedule rename EventId id: string Name create: Name name: string EventStatus CREATED ACTIVATED DEACTIVATED deactivate Description create: Description desc: string Period create: Period start: Date end: Date Value Object Entity Aggregate Root Aggregate @suksr EventController MongoDBEventRepository EventModel EventApplicationService EventRepository POST /events/{id}/activate POST /events DELETE /events/{id} I n n e r O u t e r O u t s i d e (Port) (Adapter) (Adapter) (Port)
  • 70.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core TACTICAL DESIGN Submission Handling Event Mngmnt. Session Evaluation Messaging Account Handling Schedule Mngmnt. DDD suits best for the core subdomain Movement Build in-house Use/buy off-the-shelf product Outsource to utility suppliers - or - - or - @suksr - or - Decompose & Map Analyse & Discover Problem Space Solution Space Strategic Design Tactical Design Architect & Implement
  • 71.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Wardley Maps Supporting Generic Core INFRASTRUCTURE MAPPING @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Understand the involved components and their dependencies (position) Position Data Storage Infrastructure
  • 72.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Understand the involved components and their dependencies (position) Data Storage Search Engine Wardley Maps INFRASTRUCTURE MAPPING Position Infrastructure
  • 73.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Understand the involved components and their dependencies (position) Data Storage Search Engine Compute Platform Wardley Maps INFRASTRUCTURE MAPPING Position Infrastructure
  • 74.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Understand the involved components and their dependencies (position) Data Storage Search Engine Compute Platform VM Wardley Maps INFRASTRUCTURE MAPPING Position Infrastructure
  • 75.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Data Storage Search Engine Compute Platform VM Movement Plot components along evolution axes (movement) and use appropriate method per evolution stage Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Infrastructure
  • 76.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Data Storage Search Engine Compute Platform VM Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Infrastructure & operational complexities Wardley Maps INFRASTRUCTURE MAPPING Infrastructure
  • 77.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Data related components & activities Compute Platform Data Storage Search Engine VM Wardley Maps INFRASTRUCTURE MAPPING Infrastructure
  • 78.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit DDD & Wardley Maps Supporting Generic Core TACTICAL DESIGN @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Search Engine Compute Platform Data Storage VM Service related components & activities Infrastructure
  • 79.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Submission Handling Event Mngmnt. Session Evaluation Schedule Mngmnt. Messaging Account Handling Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Search Engine Compute Platform Data Storage VM Service interaction related components & activities Wardley Maps INFRASTRUCTURE MAPPING Infrastructure
  • 80.
  • 81.
  • 82.
    command query Message Broker publish subscribe command query Request-DrivenHybrid Message Broker publish subscribe Event-Driven @suksr API API API Service Interactions
  • 83.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Search Engine Compute Platform Data Storage VM Request-driven related components & activities Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. Infrastructure
  • 84.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Compute Platform VM Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. Event-driven & hybrid related components & activities Message Broker Search Engine Data Storage Infrastructure
  • 85.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Compute Platform VM Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. Message Broker Search Engine Data Storage Discuss & plan Infrastructure
  • 86.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Compute Platform VM Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. Message Broker Search Engine Data Storage Discuss & plan Open Source Software Infrastructure
  • 87.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS Example Message Broker Search Engine Data Storage Compute Platform VM Open Source Software Infrastructure
  • 88.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS Message Broker Search Engine Data Storage Compute Platform VM Discuss & plan Offload to cloud hosted services Infrastructure
  • 89.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS Compute Platform VM DB aaS SE aaS MB aaS Offload to cloud hosted services ID aaS Infrastructure
  • 90.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS Compute Platform VM DB aaS SE aaS MB aaS Discuss & plan Offload to container orchestration platform ID aaS Infrastructure
  • 91.
    Managed by YOU Managedby Platform Hardware O/S Virtualization Container Runtime O/S Orchestration µService Container Runtime µService Service Discovery Load Balancer Config-Mngmt. Monitoring Log Aggreation Health Checks Recovery Scaling @suksr Container Orchestration API Gateway
  • 92.
    Containerized Microservice Pod Service Volume Deployment Master Node Worker Node WorkerNode Ingress Deployment Deployment Container Orchestration BASIC COMPONENTS OF KUBERNETES
  • 93.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS VM DB aaS MB aaS Worker Nodes Master Node SE aaS Container Orchestration w/ Kubernetes Compute Platform ID aaS
  • 94.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS VM DB aaS MB aaS Worker Nodes Master Node SE aaS Container Orchestration w/ Kubernetes Compute Platform Pod Deploym. Volume Ingress Service New Primitives ID aaS
  • 95.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS VM DB aaS MB aaS Worker Nodes Master Node SE aaS Container Orchestration w/ Kubernetes Compute Platform Pod Deploym. Volume Ingress Service Secret Stateful Set Cron Job Job Config Map Network Policy Replica Set Daemon Set Horizontal Pod Autoscaler Persistent Volume Claim Egress more ... ID aaS Infrastructure
  • 96.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. OSS VM DB aaS MB aaS Worker Nodes Master Node SE aaS Compute Platform Container Orchestration Discuss & plan Offload application networking concerns to a service mesh ID aaS Infrastructure
  • 97.
    Circuit Breaker TimeoutRetries Kubernetes / Service Mesh Sidecar Proxy Application Networking Concerns @suksr Metrics Security Sidecar Proxy Distributed Tracing Log Aggregation Separation Of Concerns SERVICE MESH
  • 98.
    Proxy Proxy Microservice Microservice Policy& Telemetry (Mixer) Discovery & Config to Proxies (Pilot) Config (Galley) TLS Certs to Proxies (Citadel) Data Plane Control Plane HTTP, gRPC, TCP mTLS Service Mesh COMPONENTS OF ISTIO
  • 99.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. VM DB aaS MB aaS Worker Nodes Master Node SE aaS Container Orchestration ID aaS Destination Rule Gateway Service Entry Policy ServiceRole / -Binding ClusterRbac Config Virtual Service Service Mesh Infrastructure
  • 100.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Manage Organiser Build & Publish Communicate Signup/Signin Speaker Submit Supporting Generic Core @suksr Problem Space Solution Space Strategic Design Tactical D. Schedule Session Event Submission w/ Speakers Build in-house Use/buy off-the-shelf product Outsource to utility suppliers Wardley Maps INFRASTRUCTURE MAPPING Submission H. Event M. Session Eval. Schedule M. Messaging Account H. VM DB aaS MB aaS Worker Nodes Master Node SE aaS Container Orchestration ID aaS Service Mesh Discuss & plan Move to Serverless Infrastructure
  • 101.
    Function Event Event-Driven Workflow Hardware Data Store O/S VirtualizationContainer Runtime Fully Managed By Third Party Ephemeral Function Pay-per-Execution Auto-Scaling @suksr triggers Serverless w/ FaaS CHARACTERISTICS
  • 102.
    Lambda API Gateway SNS SQS DynamoDB Step Functions CoreAWS Serverless Building Blocks S3 Kinesis CloudWatch Cognito @suksr IAM and more Serverless AWS BUILDING BLOCKS
  • 103.
  • 104.
  • 105.
  • 106.
  • 107.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Evaluate Submissions Manage Event Organiser Build & Publish Schedule Communicate w/ Speakers Signup/Signin Speaker Submit Session DDD & Wardley Maps Supporting Generic Core TACTICAL DESIGN Submission Handling Event Mngmnt. Session Evaluation Messaging Account Handling Schedule Mngmnt. Build in-house Use/buy off-the-shelf product Outsource to utility suppliers @suksr Problem Space Solution Space Strategic Design Tactical Design Serverless w/ FaaS API Gateway Lambda DynamoDB S3 SNS Cognito SE aaS Infrastructure
  • 108.
  • 109.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Summary @suksr Know your users & user needs
  • 110.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Summary Supporting Generic Core @suksr Decompose & Map Analyse & Discov. Problem Space Solution Sp. Strategic Design Know your users & user needs Understand the problem first and focus on core domain
  • 111.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Summary Supporting Generic Core @suksr Decompose & Map Analyse & Discov. Problem Space Solution Space Strategic Design Tactical Design Architect & Implement - or - - or - - or - Know your users & user needs Understand the problem first and focus on core domain DDD suits well for your core domain
  • 112.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Summary Supporting Generic Core @suksr Decompose & Map Analyse & Discov. Problem Space Solution Space Strategic Design Tactical Design Architect & Implement Infrastructure Know your users & user needs Understand the problem first and focus on core domain DDD suits well for your core domain Identify and outsource commodities
  • 113.
    Value Chain Invisible Visible Genesis Custom-Built Product(+rental) Commodity (+utility) Evolution Summary Supporting Generic Core @suksr Decompose & Map Analyse & Discov. Problem Space Solution Space Strategic Design Tactical Design Architect & Implement Infrastructure Know your users & user needs Understand the problem first and focus on core domain DDD suits well for your core domain Identify and outsource commodities Efficiency enables innovation
  • 114.
    Susanne Kaiser Independent TechConsultant @suksr susanne@kaiser-consulting.net