The Sofware Development Life Cycle codifies how we build applications. Optimizing this process allows working software to be delivered more quickly and efficiently.

1. Optimizing the Software
Development Life Cycle
or “How to Make Software the First Time”

2. What is the SDLC?
42

3. Plan > Design > Build >
Deliver > Repeat

4. Plan > Design > Build > Deliver > Repeat
Discover > Define > Design > Develop > Deliver
Plan > Design > Build > Test > Deliver > Maintain
Plan > Analyze > Design > Implement > Maintain
Conduct the Preliminary Analysis > Propose Alternative Solutions > Describe the
Costs and Benefits > Systems Analysis, Requirements Definition > Collection of Facts
> Scrutiny of the Existing System > Analyzing the Proposed System > Systems
Design > Development > Integration and Testing > Acceptance, Installation,
Deployment > Maintenance > Evaluation > Disposal

5. Plan > Design > Build >
Deliver > Repeat

6. Why Me?
It’s the Selection Committee's fault...

7. Defining a
Solution
Plan > Design > Build > Deliver > Repeat

8. Defining a
SOLUTION???
Plan > Design > Build > Deliver > Repeat

9. Plan > Design > Build > Deliver > Repeat

10. Plan > Design > Build > Deliver > Repeat

11. We Have a
PROBLEM!!!
Plan > Design > Build > Deliver > Repeat

12. Define the Problem
Plan > Design > Build > Deliver > Repeat
● Define it. Really. Write it down.
● Explore the Status Quo
● Study Competition
● Discover Alternatives

13. Software is Made
With PEOPLE
Plan > Design > Build > Deliver > Repeat

14. DDD
Plan > Design > Build > Deliver > Repeat

15. “To communicate effectively, the code must be based on
the same language used to write the requirements - the
same language that the developers speak with each
other and with domain experts.”
Eric Evans, Domain-Driven Design: Tackling Complexity
in the Heart of Software
Plan > Design > Build > Deliver > Repeat

16. Plan > Design > Build > Deliver > Repeat
if X is in Y then multiply A by B

17. Plan > Design > Build > Deliver > Repeat
if ZIP CODE is in THIS STATE then multiply the
SHOPPING CART TOTAL by SALES TAX

18. Plan > Design > Build > Deliver > Repeat
WWBRD?

19. Plan > Design > Build > Deliver > Repeat

20. Plan > Design > Build > Deliver > Repeat
Designers are Friends
Not Food
● Wireframes
● Hi-Fi Comps

21. You’ve Got
99 Features
99 Problems
Plan > Design > Build > Deliver > Repeat
Pick Three

22. Write Tests!
Plan > Design > Build > Deliver > Repeat
Code that checks code is good.

23. Plan > Design > Build > Deliver > Repeat
Code
Reviews
Are Fair and Balanced

24. Plan > Design > Build > Deliver > Repeat
Devs +
Stakeholders
Avoiding Telephone Games

25. Plan > Design > Build > Deliver > Repeat
Live at
T-Minus 10
Avoiding the Launch Day Death March

26. Plan > Design > Build > Deliver > Repeat

27. Plan > Design > Build > Deliver > Repeat
CI/CD

28. Plan > Design > Build > Deliver > Repeat

29. Plan > Design > Build > Deliver > Repeat
Iterate
Like a Boss

30. Plan > Design > Build > Deliver > Repeat
Don’t Go Chasing
Waterfalls

31. Plan > Design > Build > Deliver > Repeat
Fight for
the User

32. Plan > Design > Build > Deliver > Repeat
Individuals and Interactions
Working Software
Customer Collaboration
Responding to Change

33. Manifesto for Agile Software Development
We are uncovering better ways of developing
software by doing it and helping others do it.
Through this work we have come to value:
Individuals and interactions over processes and tools
Working software over comprehensive documentation
Customer collaboration over contract negotiation
Responding to change over following a plan
That is, while there is value in the items on the right,
we value the items on the left more.

34. Kent Beck
Mike Beedle
Arie van Bennekum
Alistair Cockburn
Ward Cunningham
Martin Fowler
James Grenning
Jim Highsmith
Andrew Hunt
Ron Jeffries
Jon Kern
Brian Marick
Robert C. Martin
Steve Mellor
Ken Schwaber
Jeff Sutherland
Dave Thomas
agilemanifesto.org

35. This Talk Was Really About
AGILE!
Pro Tip: Make Clickbait Titles for Conference Talks

36. Jason Straughan
@JDStraughan
I work at @GrokInteractive and @gocodeup
Slides available at: revconf2017.grok.rocks