1. GREATER AGILITY & DEVOPS QA STRATEGY WITH MICROSERVICE ARCHITECTURE STYLE
KRISHNACHANDER KALIYAPERUMAL
PROJECT MANAGER
COGNIZANT TECHNOLOGY SOLUTIONS

2. ..then the Strategies… First some concepts… ...then Conclusion.
ABSTRACT
Agility started with Scrum practices, then advanced in testing practices like Continuous Integration, Test / Behaviour Driven Development, then advanced with Operations practice like DevOps. But even then the agility of time to market a challenge with monolithic architecture. There has been a shift in service based architectures over the last few years towards smaller, more focussed "micro" services architecture style.
This presentation outlines how we can achieve greater agility and accelerate DevOps QA strategy with Microservice Architecture built Applications.
..then the Strategies…
First some concepts…
DevOps, Agile model, Team structure in Monolithic Vs Microservices
Business Challenges
What is a Microservice?
Monolithic Vs Microservice
(conceptually, Technically, Team & Style)
...then Conclusion.
Benefits to business
Early Adopters

3. CHALLENGE
In a recent Forrester survey, just 17 percent of IT executives said they deliver fast enough for the pace of business
IT Development and IT Operations have different values and ways of working that are often not in alignment.
IT organizations typically spend more time in testing, deploying and releasing software due to complex architecture patterns
A high proportion of production incidents are a result of human errors in the manual release of software

4. WHAT IS MICROSERVICE?
In Computing, Microservices is a software architecture style in which complex applications are composed of small, independent processes (based on business) communicating with each other using language –agnostics APIs. These Services are small, Highly decoupled and focus on doing a small task, facilitating a modular approach to system-building
(Source – Wikipedia)

5. MICRSERVICES - BREAKING MONOLITHIC TO SMALLER SERVICE
E – Commerce Website
E – Commerce Website
Monolithic
Microservice
Cart Services
Authentication
Services
Cart
Authentication
Catalog
Services
Catalog
Payment
Fulfilment Services
Fulfilment
Payment Services
Logistics
MasterCard/Visa
Logistics
MasterCard/Visa

6. Cross Functional Autonomous Service teams
Monolithic
Microservice
Conceptual
Small Independent autonomous, auto deployable, domain driven services of one application
One large application that serves the business function
Technical
Each service has independent stack & de-centralized data
Each service is dependent on the other
Team
UI Team
Server Team
DBA Team
Test Team
Build Team
Cross Functional Autonomous Service teams
Embraces pure agile that is cross functional
Team
Every service team is small and responsible end to end.
Service 3 team
Service 1 team 6

7. DEVOPS Might be well-structured inside. Monolithic
But, can only be deployed as a whole
Monolithic
Catalog
Release
Commit Stage
Automated
Acceptance Testing
Automated
Capability Testing
Manual
Explorative Testing
Micro services can only be deployed independently if tests are independent & if your Continuous Delivery Pipeline works
Commit Stage
Automated
Acceptance Testing
Automated
Capability Testing
Manual
Explorative Testing
System Integration
Testing
Commit Stage
Automated
Acceptance Testing
Automated
Capability Testing
Manual
Explorative Testing
Microservice
Release
Catalog
Commit Stage
Automated
Acceptance Testing
Automated
Capability Testing
Manual
Explorative Testing
Commit Stage
Automated
Acceptance Testing
Automated
Capability Testing
Manual
Explorative Testing

8. Agile Sprints Microservice Monolithic Quality Assurance Order Stories
Micro services
Deployment
Quality Assurance
Sprint 2
Billing
Stories
Micro services
Deployment
Quality Assurance
Sprint 3
Micro services
Deployment
Search
Stories
Sprint 1
Order
Stories
Billing
Stories
Search
Stories
Deployment Monolith
Quality Assurance

9. Agile Team Monolithic Microservice Order Logic Team sprint Sprint 1 DB
GUI
Order
Sprint 1
Sprint 1 DB
Team Sprint
Order
Order
Logic
Sprint 2
GUI
Team Sprint
Sprint 3
Order DB
Time
Service testing
Shift left
Component / Unit testing

10. Unit Test BENEFITS TO BUSINESS$$
$$$ $
SPEED
TO MARKET
Up to 50% increase in speed to market through streamlined software delivery
THROUGHPUT
Teams are more productive and can deliver new functionality faster
DELIVERY RISK
RESILENCY
Reduced defects in later test phases by up to 30% and overall higher quality
Operational state is more stable and secure and changes are systematically auditable
Microservice architectures provide more options for where and how to test
Agility in
Architecture
SOA
DDD
Micro services
Test Pyramid help us to maintain a balance between the different types of test
Agility in
Operations CD
DEV
Cloud
Exploratory
Agility in
Development
/ Testing CI
TDD
BDD
End to End
Agility in
Process
Scrum XP
Scaled Agile
Component
Integration Test
Greater Agility
Unit Test

11. THE FUTURE IS HERE – EARLY ADOPTERS

12. Thank You! Author Biography References & Appendix
Krishnachander Kaliyaperumal works as a Project Manager at Cognizant Technology Solution, Coimbatore and have 12 years of experience in Enterprise Test Program Management, Integrated Test Environment Services, ITIL & CMMI Level 5 assessment Process Improvement in large scale enterprise banking & Insurance domain. He holds a Master’s Degree in Computer Applications. He is a certified Scaled Agile professional, ISTQB certified, ITIL V3 certified, Six-Sigma Green Belt certified professional & PMP practitioner.
References & Appendix
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Thank You!