Agile perversion - Barcelona Software Craftsmanship 2015

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Javier Salinas Polo

Agile perversion at Barcelona Software Craftsmanship 2015

Software

AGILE PERVERSION
by /Javier Salinas @MuSTa1nE

Waterfall model
Product requirements documentProduct requirements document
Software architectureSoftware architecture
Implementation
Design
Requirements
Maintenance
Verification
SoftwareSoftware

WATERFALL PROBLEMS
No working software is produced until late.
High amounts of risk and uncertainty.
It is difficult to measure progress within stages.
Cannot accommodate changing requirements.
Integration is done as a "big-bang. at the very end, which
doesn't allow identifying any technological or business
bottleneck or challenges early.

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.

"Agile is ordering tapas until you're full, not
ordering a 10-course meal" - Neil Killick

"Build projects around motivated individuals.
Give them the environment and support they
need, and trust them to get the job done." -
5th Principle from Agile Manifesto
The necessity of estimates is the lack of trust

"Customer collaboration over contract
negotiation" - Agile Manifesto

"Until each specific feature is understood in
detail, it’s impossible to estimate the cost of a
software project accurately." - McConnell
That's not very Agile.

date estimated 2011 - terminated on 2015
cost estimated 288 millions - final cost 506 millions

PREDICTION
"Working software is the primary measure of
progress." - 7th Principle from Agile Manifesto

PRIORITISATION
Focus on value not in cost

ANALYSIS & UNDERSTANDING
Do it but don't make magic numbers from it

THE NATURE OF SOFTWARE DEVELOPMENT
Organising By Feature
Planning Feature by Feature
Building the product, feature by feature
Slice features thinly
Build quality in every day

SLICING HEURISTIC
“A user story ready to be worked on must
have only one acceptance test." - Neil Killick

THANK YOU!
CONTACT ME
jsalinaspolo@gmail.com
@MuSTa1nE
blog: http://www.jspcore.com

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Agile perversion - Barcelona Software Craftsmanship 2015

1. AGILE PERVERSION by /Javier Salinas @MuSTa1nE

2. ABOUT ME

3. WHAT IS THIS TALK ABOUT?

4. AGENDA Waterfall Scrum Agile

5. Waterfall model Product requirements documentProduct requirements document Software architectureSoftware architecture Implementation Design Requirements Maintenance Verification SoftwareSoftware

6. WATERFALL PROBLEMS No working software is produced until late. High amounts of risk and uncertainty. It is difficult to measure progress within stages. Cannot accommodate changing requirements. Integration is done as a "big-bang. at the very end, which doesn't allow identifying any technological or business bottleneck or challenges early.

9. SCRUM

10. XP - EXTREMME PROGRAMMING

11. 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.

12. "Agile is ordering tapas until you're full, not ordering a 10-course meal" - Neil Killick

13. "Build projects around motivated individuals. Give them the environment and support they need, and trust them to get the job done." - 5th Principle from Agile Manifesto The necessity of estimates is the lack of trust

14. "Customer collaboration over contract negotiation" - Agile Manifesto

15. "Until each specific feature is understood in detail, it’s impossible to estimate the cost of a software project accurately." - McConnell That's not very Agile.

16. date estimated 2011 - terminated on 2015 cost estimated 288 millions - final cost 506 millions

17. WHY ESTIMATE?

18. PREDICTION "Working software is the primary measure of progress." - 7th Principle from Agile Manifesto

19. PRIORITISATION Focus on value not in cost

20. ANALYSIS & UNDERSTANDING Do it but don't make magic numbers from it

21.

22.

23. THE NATURE OF SOFTWARE DEVELOPMENT Organising By Feature Planning Feature by Feature Building the product, feature by feature Slice features thinly Build quality in every day

24. SLICING HEURISTIC “A user story ready to be worked on must have only one acceptance test." - Neil Killick

25. THANK YOU! CONTACT ME jsalinaspolo@gmail.com @MuSTa1nE blog: http://www.jspcore.com

Agile perversion - Barcelona Software Craftsmanship 2015

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