DevLink - Architecting Modern Distributed Applications

Architecting Modern Distributed Applications
Clint Edmonson
Architect Evangelist
Microsoft
Email: clinted@microsoft.com
Web: http://www.notsotrivial.net
Twitter: @clinted

Industry Trends

Industry Trends
Trend 1: Service Oriented Architecture (SOA)

Industry Trends

Industry Trends
Trend 2: Software as a Service (SaaS)

Industry Trends

Industry Trends
Trend 3: Web 2.0

Industry Trends

Industry Trends
Trend 4: Rich Internet Applications (RIA)

Industry Trends

Industry Trends
Trend 5: Cloud Computing

Industry Trends

Industry Trends
SOA: Service Oriented Architecture
RIA: Rich Internet Applications
Interop, Reuse and Agility
User Experience
Software + Services
Web 2.0
SaaS: Software as a Service
SocialNetwork Effect
Flexible pricing and delivery
Cloud Computing
Service Utility & Scale

Heads in the Cloud, Feet on the Ground

When it comes to running applications, organizations today face a tension between control and economy of scale
Control
High
Low
Economy of Scale
Low
High

Application runs on-premise
Buy my own hardware, and manage my own data center
Application runs at a hoster
Pay someone to host my application using hardware that I specify
Application runs using cloud platform
Pay someone to host my application without specifying the hardware (they promise to be “infinitely” scalable)
Application is supplied by a vendor
Pay for someone’s hosted application. Don’t care about the hardware, as long as it works.
Control
High
Low
Economy of Scale
Low
High

Buy
Build vs. Buy
Tension between build vs. buy
Build

“Packaged”
Application
An application that I buy “off the shelf” and run myself
Hosted
“Packaged”
An application that I buy “off the shelf” and then run at a hoster
“Packaged”
using cloud
An application that I buy “off the shelf”, that is hosted using cloud platform
“Software as a Service”
A hosted application that I buy from a vendor
Buy
Build vs. Buy
“Home Built”
Application
An application that I develop and run myself
Hosted
“Home Built”
An application that I develop myself, but run at a hoster
“Home Built”
using cloud
An application that I develop myself, that is hosted using cloud platform
“Platform as a Service”
A vendor hosted development and runtime environment
Build

“Packaged”
Application
Big Pharmaceutical Example
Hosted
“Packaged”
“Packaged”
using cloud
ERP
“Too costly to run this myself, but I’ve made too many customizations”
CRM
Email
“Home Built”
Application
Hosted
“Home Built”
“Home Built”
using cloud
HR System
Molecule Research
Clinical Trial

“Packaged”
Application
Hosted
“Packaged”
“Packaged”
using cloud
ERP
CRM
“CRM and Email are commodity services – They have no customizations, and it’s cheaper for someone else to run these”
Email
“Home Built”
Application
Hosted
“Home Built”
“Home Built”
using cloud
HR System
Molecule Research
Clinical Trial

“Packaged”
Application
Hosted
“Packaged”
“Packaged”
using cloud
ERP
CRM
Email
“Home Built”
Application
Hosted
“Home Built”
“Home Built”
using cloud
“I can’t afford to maintain this old HR application written in VB – it’s driving me mad!”
HR System
“…but due to regulatory issues, I cannot store my HR data off-premise”
Molecule Research
Clinical Trial

“Packaged”
Application
Hosted
“Packaged”
“Packaged”
using cloud
ERP
CRM
Email
HR System
“Home Built”
Application
Hosted
“Home Built”
“Home Built”
using cloud
“I wish I had access to cheaper compute and storage when I need it”
Molecule Research
Clinical Trial

“Packaged”
Application
Hosted
“Packaged”
“Packaged”
using cloud
ERP
CRM
Email
HR System
“Home Built”
Application
Hosted
“Home Built”
“Home Built”
using cloud
Molecule Research
“THIS is where I want to spend my IT resources – I’m going to double down on this application!”
Clinical Trial

Architectural Blueprints

Physical, Dedicated
Single service on dedicated hardware
Physical, Shared
Multiple services sharing same hardware
Physical, HPC
Physical hardware supporting HPC scenario
Virtual, Single
Single instance virtual image
Virtual, Shared
Multiple instance virtual image

File
Fileshare, flat, page-based
Relational
Hosted relational database, familiar, transactional, finite
Unstructured
Key/value Pair, no atomicity, infinitely scalable

Service Bus
Asynchronous, reliable messaging, publish/subscribe model
Peer to Peer
Node registration, directory, presence awareness

Authentication
Username / Password or claims based
Role Based Authorization
Role-checking and authorization

Event Based
Triggered based on events (e.g. document upload)
High Throughput
Low latency, high volume (e.g. trading confirmations)

Search
Text Search, Image Search, Indexing
Content Management
Indexing, Retrieval, Conflict Management
Social
Social Graphs, Profiles

Transaction
Pay for each transaction
Subscription
Pay per month/period
Licensing
Pay per user/machine
Advertising
Advert funded model

Service Composition
Composition, brokering results, aggregation
Line of Business Integration
Service wrapping of mainframe and other LOB applications

Business Logic (Rules)
Entities (Schema)
Workflow (Process)

Static
Static content, HTML etc
Dynamic
Asynchronous interaction, AJAX etc.
RIA
Rich Internet Applications, high visuals, limited offline support
Streaming
Optimized for content delivery, videos etc.

RSS
Syndication services for subscriptions
REST
CRUD access to services via HTML
Web Services
SOAP based, WS-I compliant, WS-*

VoiceXML
Mobile Application Speech API
SIP
Session Initiation Protocol – IM Clients
SMTP
Email inbound and outbound delivery
SMS
Mobile inbound and outbound text messaging

Browser
Consumer of web based content, HTML etc., including RIA plug in
Office
Office Suite, including Email and RSS reader capability
Client Application
Rich (Smart) client applications installed locally on machine
Gadgets
Locally installed, desktop based
Instant Messaging
Locally installed Instant Messaging client

Speech
Speech enabled interface
SMS / IM
Text messaging and IM using Mobile Device
Browser
Consumer of web based content, HTML etc., including RIA plug in
Office
Office Suite, including Email and RSS reader capability
Client Application
Rich (Smart) client applications installed locally on machine

Devices
Dedicated devices
Consoles
Games Consoles

Architectural Trends

How can we analyze our architectures using these layers and components?

Static Web Site, On Premise

Static Web Site, On Premise (Add Content Mgt)

Static Web Site, On Premise (Add Search/Social)

Static Web Site, On Premise (Add Ad Service)

Static Web Site, On Premise (Move to Hoster)

Static Web Site, On Premise (Add AJAX)

Static Web Site, On Premise (Add Mobile RSS)

How about the trends we talked about earlier?

Trend 1: Service Oriented Architecture (SOA)

Trend 1: SOA - Single Service, On Premise

Trend 2: Software as a Service (SaaS)

Trend 2: SaaS – Web Based SaaS Provider

Trend 3: Web 2.0

Trend 3: Web 2.0 – Social Networking Site

Trend 4: Rich Internet Applications

Trend 4: RIA – eCommerce Site

Trend 5: Cloud Computing

Trend 5: Cloud Computing – Backup Provider

How about Microsoft’s own products?

Windows Live Mesh CTP (Current, Primary)

Exchange Lifecycle (Exchange 4.0, Outlook 97)
RPC
JET Database

Exchange Lifecycle (Exchange 5.0, Outlook 97)
RPC
Active Directory
JET Database

Exchange Lifecycle (Exchange 5.0 SP1, Outlook XP)
OWA
RPC
Active Directory
JET Database

Exchange Lifecycle (Exchange 2003, Outlook 2003)
OWA
RPC over HTTPS
Active Directory
JET Database

Exchange Lifecycle (Exchange 2007, Outlook 2007)
OWA
Active Directory
JET Database

Exchange Lifecycle (Hosted Exchange, Outlook 2007)
OWA
Active Directory
JET Database

Architectural Challenges

“Packaged”
Application
Hosted
“Packaged”
“Packaged”
using cloud
ERP
CRM
Email
HR System
“Home Built”
Application
Hosted
“Home Built”
“Home Built”
using cloud
Molecule Research
Clinical Trial

Challenge 1 - Identity

Accessing Hosted Assets with Internal Credentials
AuthN and AuthZ across FW
Credential Storage

Issuing Authority
Relying Party
Authentication Assurance
STS-I
STS-R

“A Cloudy World” Example
Clinical trial patients
employees
IT
STS
(big pharma instance in purple)
Hosted ERP @ Hoster
Directory
The “Cloud”
(big pharma data in purple)
Management
CRM Online
Big Pharma “on premise”
Firewall
Cloud Storage
STS
Relay
Cloud Compute
Clinical trial
software
Internet
Service Bus
(Connectivity)
Internet
Service Bus
(Identity)
(new molecule research in purple)
Cloud Platform

Challenge 2 – Data

Challenge 2 - Data

Challenge 2 - Data
Import and Export of Data
Privacy of External Data
Reporting and Analytics
Database of Record

Challenge 3 – Management

Challenge 3 - Management

Challenge 3 - Management
Holistic View of Application?
Integration into existing System Management solutions?
Contracts and SLAs

Architectural Blueprints – Next Steps

Step 1 – Use the “blueprints” to decompose and recompose existing applications

Step 2 – Get the right people involved

Solutions Architect and Development Team (inc. Designer)
Solutions Architect and Development Team (inc. Web Design)
Solutions Architect and Development Team
Enterprise Architect and CIO
Data Center Operations
Solutions and Infrastructure Architect
Infrastructure Architect / Data Center Operations

Step 3 – Understand the Technology Mappings

XBOX 360
Win
Embed
.NET CF
IE
Windows Mobile
Office
WPF
Windows
OC
IIS
SL Streaming
WCF
.NET Framework
BizTalk
MOSS
BTS Adapters
MOSS BDC
Ad
Center
.NET Framework 3rd Party
IIS
SQL Server
SSDS
AD / ADFS
ILM
BizTalk / BizTalk.Net
Mesh CTP
Windows WF
MOSS
Windows WF
BizTalk Server
Windows Server
WS HPC
Windows Server Hyper-V

Step 4 – Document repeatable patterns

Thank you!
Clint Edmonson
Architect Evangelist
Microsoft
Email: clinted@microsoft.com
Web: http://www.notsotrivial.net
Twitter: @clinted

DevLink - Architecting Modern Distributed Applications

by Clint Edmonson on Aug 17, 2009

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