The document discusses the limitations of Scrum in software development and emphasizes the shift towards continuous delivery as a more efficient methodology, particularly in the context of IoT. It highlights key practices such as automation testing and continuous integration, explaining the evolution from monolithic architectures to microservices that enhance deployment and scalability. Key principles of lean engineering underpin this approach, aiming for faster delivery, higher quality, and customer satisfaction.

1. Continuous Delivery
Development Process Community
Sergey Seletsky
Software Architect

2. Agenda
• What’s wrong with Scrum?
• Evolution
• Continuous Delivery
• The Era of IoT
• Software Architecture
• Continuous Deployment
• Conclusions

3. What’s wrong with Scrum?

4. What’s wrong with Scrum?
• Sprints vs. releases or: what are sprints for?
• Time boxing or bad fit for SaaS delivery model
• No junk in the trunk and code freeze
• Automate your testing
• Automate your deployments
• Changing your definition of done

5. Evolution
Methodology
Process
Patterns
Platform
Waterfall Agile Lean Engineering
Continuous Delivery
Microservice Architecture
Cloud
Scrum
3-Tier Layered
Windows / Linux
Gated
2-Tier Monolithic
Windows
Device Any DeviceBrowserDesktop

6. Delivery matters
Continuous Delivery

7. But first - remember, what is Lean?
• Methodology like Agile
• Main principles
1. Waste elimination
2. The highest quality
3. Delivery ASAP
4. Customer satisfaction
5. Continuous optimization

8. What is Continuous Delivery?
• Development process (like Scrum)
• Based on Lean Engineering (not Agile)
• Main purpose: fast delivery
• Main practices:
1. Automation testing
2. Continuous integration
3. Continuous deployment
4. Continuous optimization

10. The Era of IoT

11. Main challenges brought by IoT
• More targeting platforms
• More targeting devices
• Difficult delivery process
• Connectivity
• Big Data
• Security
• Power efficiency

13. Software Architecture
Microservice

14. Evolution from Monolithic to Microservice
Desktop
Client
Server
Browser
Web
Server
Db Server
Any Device
microservices
API Proxy

15. Microservices are…
• A microservice is a self-contained unit of functionality with loosely
coupled dependencies on other services.Autonomous
• A microservice is a unit of deployment that can be modified,
tested and deployed as a unit without impacting other areas of a
solution
Isolated
• A microservice can be stateful or stateless and can be scaled
independently of other servicesElastic
• A microservice is fault tolerant and highly availableResilient
• A microservice responds to request in a reasonable amount of
timeResponsive

16. Microservices are…
• The intelligence in a system is found in the endpoints not on the
wire. ESB is an anti-pattern to Microservices.Intelligent
• Microservices rely on asynchronous message-passing to establish
a boundary between componentsMessage Oriented
• Microservices provide API’s for access by developers and
administrators and Applications are composed from multiple
microservices
Programmable
• Microservices provide an API and/or a console that provides
access to administrative operationsConfigurable
• The lifecycle of a microservice is managed through automation
that includes dev, build, test, staging, production and distributionAutomated

17. Deployment matters
Continuous Deployment

18. Continuous Deployment Pipeline

19. Xamarin Continuous Deployment Pipeline

20. Deployment Governance
VM’s
VM
VM
VM
OrderCustomer
Reference Data

21. Deployment Governance
Web Hosting Plans & Resource Groups (Azure)
Resource Group A
Resource Group B
Resource Group C
OrderCustomer
Reference Data
Web Hosting Plan A Web Hosting Plan B Web Hosting Plan C

22. Deployment Governance
Docker
Order Containers
Customer ContainerReference Data Container
VM VM
Workflow Container

23. Reading
Domain Driven Design
Eric Evans
Continuous Delivery
Jez Humble
David Farley
Lean Enterprise
Jez Humble
Joanne Molesky
Barry O’Reilly
Building Microservices
Sam Newman

24. USA HQ
Toll Free: 866-687-3588
Tel: +1-512-516-8880
Ukraine HQ
Tel: +380-32-240-9090
Bulgaria
Tel: +359-2-902-3760
Germany
Tel: +49-69-2602-5857
Netherlands
Tel: +31-20-262-33-23
Poland
Tel: +48-71-382-2800
UK
Tel: +44-207-544-8414
EMAIL
info@softserveinc.com
WEBSITE:
www.softserveinc.com
Questions?

25. USA HQ
Toll Free: 866-687-3588
Tel: +1-512-516-8880
Ukraine HQ
Tel: +380-32-240-9090
Bulgaria
Tel: +359-2-902-3760
Germany
Tel: +49-69-2602-5857
Netherlands
Tel: +31-20-262-33-23
Poland
Tel: +48-71-382-2800
UK
Tel: +44-207-544-8414
EMAIL
info@softserveinc.com
WEBSITE:
www.softserveinc.com
THANK YOU!