Enterprises today operate in complex and competitive markets. They are constantly trying to optimize business functions, introduce new business capabilities and tap into new markets quickly and efficiently. For the business to be agile, software systems that are used to provide business capability need to be agile. The ability to build and integrate new capability in a short time becomes valuable. At the same time, enterprise software systems should help with evolutionary as well as revolutionary changes that will affect core business functions. In this session we will discuss iterative architecture, which is about taking an iterative approach when introducing architectural changes to support business and technical requirements. We’ll also look at real world examples of implementing architectures in iterations.

1. Itera&ve Architecture:
Your Path to On-Time Delivery
Senaka Fernando
Associate Director/Solu&ons Architect
WSO2

2. Itera&on is nothing new
Iterative
• Mona Lisa was painted from 1503 - 1507

4. Agile SoKware Development
Image: hLp://www.essen&alsln.com/agile-soKware-development/

5. The Challenge: Itera&ve vs. Incremental
Image: hLp://safetydave.net/wp-content/uploads/2014/07/Screen-Shot-2014-07-24-at-9.43.34-pm.png

6. Star&ng Point: Business Architecture
Requirements
Current apps/
systems
Δ Delta

7. Architecture is key to Con&nuous Delivery
Business
Architecture
Solu=on
Architecture
• Level 0
• Level 1
Applica=on
Architecture
• Integra=on
• Datamodels
• APIs
Run=me
Architecture
• Capacity Planning
• Deployment
• Security

8. Process: Way more than Tools and Architecture
Image: hLp://www.disciplinedagiledelivery.com/wp-
content/uploads/2015/11/DAD-Poster-Web-6-2.jpg

9. The Requirement

10. Needs != Desires
As noted on the Keynote

11. Pla]orm v1.0

12. Pla]orm v2.0

13. Pla]orm v3.0

14. It is not that easy to be on-&me
Image: hLp://pndblog.typepad.com/.a/6a00e0099631d08833013486239200970c-800wi

15. The Key: Managing Requirements
Image: hLps://upload.wikimedia.org/wikipedia/commons/1/19/Development-itera&ve.png

16. Similar Model for Projects/Components
Project v1.0
• MVP delivery
• All-internal
• Components:
• A v1.0
• B v1.0
Project v2.0 Project v3.0

17. Similar Model for Projects/Components
Project v1.0
• MVP delivery
• All-internal
• Components:
• A v1.0
• B v1.0
Project v2.0
• User feedback
• New requirements
• Components:
• A v1.0
• B v1.1
Project v3.0

18. Similar Model for Projects/Components
Project v1.0
• MVP delivery
• All-internal
• Components:
• A v1.0
• B v1.0
Project v2.0
• User feedback
• New requirements
• Components:
• A v1.0
• B v1.1
Project v3.0
• APIs
• External access
• Components:
• A v2.0
• B v1.1

19. Life is like riding a
bicycle. To keep your
balance, you must
keep moving.
- Albert Einstein
Image: hLp://www.outsideonline.com/sites/default/files/styles/three-quarter-page-
scaled-1x/public/migrated-images/Jefe-Branham-featured-cycling_h.jpg?itok=t5BZCTIZ

20. Thank You!
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