This document discusses strategies for taming complexity in enterprise software systems through modularity patterns and the Spring Framework. It identifies issues like tight coupling, spreading of business logic across layers, and "quick and dirty" code as contributors to technical debt and difficulties in modifying software over time. The document promotes addressing these issues through practices like separating abstract and implementation modules, using factories to create implementations, and designing systems with acyclic relationships and bounded contexts to manage dependencies and promote flexibility.
It is common for rails-teams to stuck at some point. It happens when team doesn't try to manage complexity of their app.
In this talk I demonstrated my path from a Rails-application to somewhat modular architecture app: things like Form Objects, Repositories, Entities etc. emerged naturally, as a solutions for existing problems, not because we were told by someone to use them.
March 15, Wroclaw, wroc_love.rb 2015
Modular Architectures: What they are why do they matter now.Param Rengaiah
Software systems evolve over time. Most of them through, are quick and small ones - hacks. These changes, over a period of time makes the code spaghetti, difficult to understand, gathers tremendous Technical Debt and along they way looses the design principles by which they are designed in the first place. Fixing these problems will be risky, tedious and expensive and definitely not without the support of a proven framework.This is the first problem. There is another force that will require significant changes to existing software systems. This force is created by the changing landscape of expectations due to technologies such as cloud, big-data and REST as well as emotional experience across all touch points, not just on PCs. This is the second problem.
Modular architecture addresses both these problems. It is not a novel thought or an isolated architectural style, but a structured way to refactor, rather restructure the code to make the systems easier to understand, extend and adopt to the new paradigms. The focus of Modular Architecture is the structural and physical design.
It is common for rails-teams to stuck at some point. It happens when team doesn't try to manage complexity of their app.
In this talk I demonstrated my path from a Rails-application to somewhat modular architecture app: things like Form Objects, Repositories, Entities etc. emerged naturally, as a solutions for existing problems, not because we were told by someone to use them.
March 15, Wroclaw, wroc_love.rb 2015
Modular Architectures: What they are why do they matter now.Param Rengaiah
Software systems evolve over time. Most of them through, are quick and small ones - hacks. These changes, over a period of time makes the code spaghetti, difficult to understand, gathers tremendous Technical Debt and along they way looses the design principles by which they are designed in the first place. Fixing these problems will be risky, tedious and expensive and definitely not without the support of a proven framework.This is the first problem. There is another force that will require significant changes to existing software systems. This force is created by the changing landscape of expectations due to technologies such as cloud, big-data and REST as well as emotional experience across all touch points, not just on PCs. This is the second problem.
Modular architecture addresses both these problems. It is not a novel thought or an isolated architectural style, but a structured way to refactor, rather restructure the code to make the systems easier to understand, extend and adopt to the new paradigms. The focus of Modular Architecture is the structural and physical design.
Intervista Institute - Executive Education Planner 2013Jim Robins
We bring thought leaders from a variety of fields to leaders in challenging business and government environments, where it’s not business as usual. Over 9000 executives and their their teams have chosen Intervista’s programs to help their organizations to innovate.
Integrating ideas from technology, design, business and culture, to help your team make connections that enable innovative thinking.
DevOps defines a set of roles and responsibilities focused on reducing risk in IT deployments and projects. By connecting development and operations, enterprise IT departments can begin to break down silos in order to:
- maximize automation;
- eliminate or significantly reduce human error;
- increase consistency; and
- reduce time spent on the outages, error detection and prevention caused by unstable environments
Gunnar Menzel, President of ODCA, Chief Architect of Capgemini Infra, outlines the ODCA perspective on the DevOps concept, focusing on key challenges it can help resolve and the benefits it can provide.
Download the white paper today http://opendatacenteralliance.org/article/devops-magnifying-business-value/
Ever wondered about Developer Experience (DevEx) and how it can truly impact your work? Join us for a chat where we break down what DevEx is and why it's relevant for everyone, not just devs. DevsOps and productivity expert Dr. Nicole Forsgren will reveal how DevEx can ignite cultural change and deliver real results in today's rapid software development landscape, backed by the latest research findings. She will share how Microsoft is leveraging a DevEx perspective to drive cultural shifts and enable AI-powered innovations that make expertise available to all teams. It's not just about code; it's about fostering better vibes and achieving outstanding outcomes for all. Don't miss out on this journey into the magic of DevEx.
Docker's value for Development Teams in a DevOps ProcessLaurent Goujon
This flash study exposes how Docker technology can be considered as a lever for digital transformations and DevOps deployments, and used as an industrial tool to transform the way we manufacture and run applications and software.
Cutting Edge on Development Methodologies in ITAndrea Tino
A presentation encompassing Agile Methodologies and DevOps practices with the aim of providing an historical perspective and a broad overview of these topics.
ThoughtWorks Head of Technology Scott Shaw and Principal Technologist Tiago Griffo discuss how successful cloud adoption is about going beyond the technology; it's about the organisational, operational and technical changes that are required for businesses to unlock the true value of cloud.
DevOps is Going to Replace SDLC! Learn Why?Edureka!
"DevOps" denotes a close collaboration and cross-pollination between previous cases i.e, purely the development roles, operations roles and QA roles. As it is necessary for the software to release at an ever-increasing rate, we can see that the old "waterfall" develop-test-release cycle is broken. Devops provides us with consistent software delivery, Faster resolution of complex problems and neatier and crisp feature delivery.
ANIn Coimbatore March 2023 |How Did Feedback Loops Help To Build Better Produ...AgileNetwork
Agile Network India - Coimbatore
Title: How Did Feedback Loops Help To Build Better Products? by Hariharasudhan R
Date: March 2023
Hosted by: Thoughtworks
SUSECON Digital 22 Scale your CICD setup for Cloud Native microservices via I...Turja Narayan Chaudhuri
In many enterprises , every team has their own way of creating CI/CD pipelines to deploy microservice based architectures onto a compute platform like Kubernetes , and so on.
This means teams end up with multiple ways of doing the same thing , and in many cases the best practices/security/compliance guidelines are ignored.
To ensure a scalable DevOps setup that can be adopted across an enterprise , it is very important to adopt a standard way of doing things.
This can only be made possible by having a central DevOps Dojo team in charge of maintaining/governing the standards ,who manage these standard templates that can be adopted by different product engineering teams.
And the only way to ensure that these templates will be adopted is by exposing them as InnerSource , and letting the specific product teams contribute.
Navigating Pains When Moving Your Training Solution to the Public CloudCloudShare
Moving to the cloud has always been painful. It’s no wonder so many large organizations have deeply researched and tested before deciding to make the transition. But does migrating your training solution have to be that challenging? The answer is, it doesn’t - and it isn’t.
Kevin Streater, VP of ForgeRock University, has been at the leading edge of cloud-based training for many years. In the past year, the company has migrated its infrastructure and training portfolio to Google Cloud and - with the help of CloudShare - ForgeRock University has successfully and seamlessly continued to offer their courses in the public cloud.
Throughout this complex journey, Kevin and his team ensured all of the familiar training functionalities, integrations, and content were fully maintained.
Whether you are an L&D supervisor, customer education manager, or even C-level starting out with cloud-based training labs or looking to more effectively train users already on the public cloud, this webinar will provide something for everyone.
The webinar will cover:
- Challenges organizations face moving to the cloud
- Best practices and common methods when transitioning
- Case study: ForgeRock’s cutting edge training delivery on GCP
- Making your training solution move to public cloud simple with CloudShare
Summary of Accelerate - 2019 State of Devops report by Google Cloud's DORARagavendra Prasath
A detailed 82 pages report is abridged to 5 pages report. Access DORA report here - https://services.google.com/fh/files/misc/state-of-devops-2019.pdf
Inspiration and Courtesy to the authors.
From Divided to United - Aligning Technical and Business TeamsDominica DeGrandis
This is a true story of one SaaS company's journey to gain alignment across business and technical teams by changing how four important factors were viewed: customer demand, work prioritization, team metrics, and communication etiquette.
The story behind Tauron's award winning intranetIntranätverk
The process of designing one of the biggest, European intranets — a project which was realized for an energy company called TAURON. The presentation is more than a typical case study – a complex and interesting story about the UCD process in the context of a huge organisation. What you will learn:
- How to use the UCD process in designing huge systems (eg. intranets)
- How to conduct research to better understand the context of the organisation
- The typical obstacles organizations could meet on their path, and how to avoid them.
- Difficulties in designing for the energy industry
- How to manage these types of projects
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Intervista Institute - Executive Education Planner 2013Jim Robins
We bring thought leaders from a variety of fields to leaders in challenging business and government environments, where it’s not business as usual. Over 9000 executives and their their teams have chosen Intervista’s programs to help their organizations to innovate.
Integrating ideas from technology, design, business and culture, to help your team make connections that enable innovative thinking.
DevOps defines a set of roles and responsibilities focused on reducing risk in IT deployments and projects. By connecting development and operations, enterprise IT departments can begin to break down silos in order to:
- maximize automation;
- eliminate or significantly reduce human error;
- increase consistency; and
- reduce time spent on the outages, error detection and prevention caused by unstable environments
Gunnar Menzel, President of ODCA, Chief Architect of Capgemini Infra, outlines the ODCA perspective on the DevOps concept, focusing on key challenges it can help resolve and the benefits it can provide.
Download the white paper today http://opendatacenteralliance.org/article/devops-magnifying-business-value/
Ever wondered about Developer Experience (DevEx) and how it can truly impact your work? Join us for a chat where we break down what DevEx is and why it's relevant for everyone, not just devs. DevsOps and productivity expert Dr. Nicole Forsgren will reveal how DevEx can ignite cultural change and deliver real results in today's rapid software development landscape, backed by the latest research findings. She will share how Microsoft is leveraging a DevEx perspective to drive cultural shifts and enable AI-powered innovations that make expertise available to all teams. It's not just about code; it's about fostering better vibes and achieving outstanding outcomes for all. Don't miss out on this journey into the magic of DevEx.
Docker's value for Development Teams in a DevOps ProcessLaurent Goujon
This flash study exposes how Docker technology can be considered as a lever for digital transformations and DevOps deployments, and used as an industrial tool to transform the way we manufacture and run applications and software.
Cutting Edge on Development Methodologies in ITAndrea Tino
A presentation encompassing Agile Methodologies and DevOps practices with the aim of providing an historical perspective and a broad overview of these topics.
ThoughtWorks Head of Technology Scott Shaw and Principal Technologist Tiago Griffo discuss how successful cloud adoption is about going beyond the technology; it's about the organisational, operational and technical changes that are required for businesses to unlock the true value of cloud.
DevOps is Going to Replace SDLC! Learn Why?Edureka!
"DevOps" denotes a close collaboration and cross-pollination between previous cases i.e, purely the development roles, operations roles and QA roles. As it is necessary for the software to release at an ever-increasing rate, we can see that the old "waterfall" develop-test-release cycle is broken. Devops provides us with consistent software delivery, Faster resolution of complex problems and neatier and crisp feature delivery.
ANIn Coimbatore March 2023 |How Did Feedback Loops Help To Build Better Produ...AgileNetwork
Agile Network India - Coimbatore
Title: How Did Feedback Loops Help To Build Better Products? by Hariharasudhan R
Date: March 2023
Hosted by: Thoughtworks
SUSECON Digital 22 Scale your CICD setup for Cloud Native microservices via I...Turja Narayan Chaudhuri
In many enterprises , every team has their own way of creating CI/CD pipelines to deploy microservice based architectures onto a compute platform like Kubernetes , and so on.
This means teams end up with multiple ways of doing the same thing , and in many cases the best practices/security/compliance guidelines are ignored.
To ensure a scalable DevOps setup that can be adopted across an enterprise , it is very important to adopt a standard way of doing things.
This can only be made possible by having a central DevOps Dojo team in charge of maintaining/governing the standards ,who manage these standard templates that can be adopted by different product engineering teams.
And the only way to ensure that these templates will be adopted is by exposing them as InnerSource , and letting the specific product teams contribute.
Navigating Pains When Moving Your Training Solution to the Public CloudCloudShare
Moving to the cloud has always been painful. It’s no wonder so many large organizations have deeply researched and tested before deciding to make the transition. But does migrating your training solution have to be that challenging? The answer is, it doesn’t - and it isn’t.
Kevin Streater, VP of ForgeRock University, has been at the leading edge of cloud-based training for many years. In the past year, the company has migrated its infrastructure and training portfolio to Google Cloud and - with the help of CloudShare - ForgeRock University has successfully and seamlessly continued to offer their courses in the public cloud.
Throughout this complex journey, Kevin and his team ensured all of the familiar training functionalities, integrations, and content were fully maintained.
Whether you are an L&D supervisor, customer education manager, or even C-level starting out with cloud-based training labs or looking to more effectively train users already on the public cloud, this webinar will provide something for everyone.
The webinar will cover:
- Challenges organizations face moving to the cloud
- Best practices and common methods when transitioning
- Case study: ForgeRock’s cutting edge training delivery on GCP
- Making your training solution move to public cloud simple with CloudShare
Summary of Accelerate - 2019 State of Devops report by Google Cloud's DORARagavendra Prasath
A detailed 82 pages report is abridged to 5 pages report. Access DORA report here - https://services.google.com/fh/files/misc/state-of-devops-2019.pdf
Inspiration and Courtesy to the authors.
From Divided to United - Aligning Technical and Business TeamsDominica DeGrandis
This is a true story of one SaaS company's journey to gain alignment across business and technical teams by changing how four important factors were viewed: customer demand, work prioritization, team metrics, and communication etiquette.
The story behind Tauron's award winning intranetIntranätverk
The process of designing one of the biggest, European intranets — a project which was realized for an energy company called TAURON. The presentation is more than a typical case study – a complex and interesting story about the UCD process in the context of a huge organisation. What you will learn:
- How to use the UCD process in designing huge systems (eg. intranets)
- How to conduct research to better understand the context of the organisation
- The typical obstacles organizations could meet on their path, and how to avoid them.
- Difficulties in designing for the energy industry
- How to manage these types of projects
Similar to Taming coupling and cohesive beasts (20)
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Generating a custom Ruby SDK for your web service or Rails API using Smithyg2nightmarescribd
Have you ever wanted a Ruby client API to communicate with your web service? Smithy is a protocol-agnostic language for defining services and SDKs. Smithy Ruby is an implementation of Smithy that generates a Ruby SDK using a Smithy model. In this talk, we will explore Smithy and Smithy Ruby to learn how to generate custom feature-rich SDKs that can communicate with any web service, such as a Rails JSON API.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
9. 99
Possible Reasons
Development spends too much time in understanding existing
implementation
Class names are too generic and hence the responsibility of a class
gets wide and complex
Business rules are spread across multiple architectural layers
Too many if / else and switch / cases in classes
Direct usage of implementation classes in parent modules
11. 1111
“Technical Debt is a wonderful metaphor developed
by Ward Cunningham… In this metaphor, doing
things the quick and dirty way sets us up with a
technical debt, which is similar to a financial debt.
Like a financial debt, the technical debt incurs
interest payments, which come in the form of the
extra effort that we have to do in future
development because of the quick and dirty
design choice.
- Martin Fowler
13. 1313
“There are four primary symptoms that tell us that
our designs are rotting. They are not orthogonal,
but are related to each other in ways that will
become obvious. they are: rigidity, fragility,
immobility, and viscosity.
- Uncle Bob
17. 1717
SUCH AS
Forcing your team to continuously work long hours.
Burning out your best team members.
High churn rate of resources.
Create psychological divide between development, testing and
operations team.
Setting up your team member to just play safe.
Basically, unpleased work environment.
At the worst - completely scrapping the project.
http://blogs.msdn.com/b/karchworld_identity/archive/2011/04/01/lehman-s-laws-of-software-evolution-and-the-staged-model.aspxAccording to several sources, and perhaps counter to intuition, the maintenance of software comprises from 50% to 90% of the overall lifecycle costs (Pigoski, 1997; Lientz & Swanson, 1980)
Like a financial debt, the technical debt incurs interest payments, which come in the form of the extra effort that we have to do in future development because of the quick and dirty design choice. We can choose to continue paying the interest, or we can pay down the principal by refactoring the quick and dirty design into the better design. Although it costs to pay down the principal, we gain by reduced interest payments in the future.
5.3.1 – Hinder Maintenance5.3.2 – Prevent Extensibility5.3.3 – Inhibit Reusability5.3.4 – Restrict Testability5.3.5 – Hamper Integration5.3.6 – Limit UnderstandingThere are four primary symptoms that tell us that our designs are rotting. They are not orthogonal, but are related to each other in ways that will become obvious. they are: rigidity, fragility, immobility, and viscosity.
Big Ball of Mud (a.k.a. Shantytown, Spaghetti Code)Throwaway Code (a.k.a. Quick Hack, Kleenex Code, Disposable Code, Scripting, Killer Demo, Permanent Prototype, Boomtown)Piecemeal Growth (a.k.a. Urban Sprawl, Iterative-Incremental Development)Keep It Working (a.k.a. Vitality, Baby Steps, Daily Build, First Do No Harm)Shearing LayersSweeping It Under The Rug (a.k.a. Potemkin Village, Housecleaning, Pretty Face, Quarantine, Hiding it Under the Bed, Rehabilitation)Reconstruction (a.k.a. Total Rewrite, Demolition, Plan to Throw One Away, Start Over)
Like a financial debt, the technical debt incurs interest payments, which come in the form of the extra effort that we have to do in future development because of the quick and dirty design choice. We can choose to continue paying the interest, or we can pay down the principal by refactoring the quick and dirty design into the better design. Although it costs to pay down the principal, we gain by reduced interest payments in the future.
All told eight laws were formulated:(1974) Continuing Change — E-type systems must be continually adapted or they become progressively less satisfactory.[3](1974) Increasing Complexity — As an E-type system evolves its complexity increases unless work is done to maintain or reduce it.[3](1974) Self Regulation — E-type system evolution process is self-regulating with distribution of product and process measures close to normal.[3](1978) Conservation of Organisational Stability (invariant work rate) - The average effective global activity rate in an evolving E-type system is invariant over product lifetime.[3](1978) Conservation of Familiarity — As an E-type system evolves all associated with it, developers, sales personnel, users, for example, must maintain mastery of its content and behaviour to achieve satisfactory evolution. Excessive growth diminishes that mastery. Hence the average incremental growth remains invariant as the system evolves.[3](1991) Continuing Growth — The functional content of E-type systems must be continually increased to maintain user satisfaction over their lifetime.(1996) Declining Quality — The quality of E-type systems will appear to be declining unless they are rigorously maintained and adapted to operational environment changes.(1996) Feedback System (first stated 1974, formalised as law 1996) — E-type evolution processes constitute multi-level, multi-loop, multi-agent feedback systems and must be treated as such to achieve significant improvement over any reasonable base.
Modularity Patterns – Manages Structural ModularityGoF Patterns – Manages Logical ModularitySOLID helps us define the boundary for classes and packages