death to project documentation with extreme programming

Death to project documentation with XP

Yet Another Perl

Conference

Europe Fundation 2015

Yet Another Perl

Conference

Europe Fundation 2015

“As developer I find project documentation very useful and I love to keep it up to date”

“As developer I find project documentation very useful and I love to keep it up to date”

- no one -- never -

Documentation is...

Documentation is...

Simply duplication

Requirements document Emails

Technical Analysis

Domain model

Test Plan

Task tracker

Code

Documentation is...

Hard to keep up to date

Requirements document Emails

Technical Analysis

Domain model

Test Plan

Tasks tracker

Code

Requirements document

Requirements documentTechnical

Analysis

Technical Analysis

Technical Analysis

Code CodeCode

Test Plan

Domain modelDomain model

Emails

Emails

Emails

Emails

Domain model

Task tracker

Requirements document

Emails

Test PlanRequirements document

Requirements document

Test Plan

Domain model

Requirements document Emails

Technical Analysis

Domain model

Test Plan

Tasks tracker

Code

Requirements document

Requirements documentTechnical

Analysis

Technical Analysis

Technical Analysis

Code CodeCode

Test Plan

Domain modelDomain model

Emails

Emails

Emails

Emails

Domain model

Task tracker

Requirements document

Emails

Test PlanRequirements document

Requirements document

Test Plan

Domain model

Documentation is...

Inefficient

Documentation is...

Tedious

Simply duplication

Hard to keep up to date

Inefficient

Tedious

Simply duplication

Hard to keep up to date

Inefficient

Tedious

Documentation is...

S.H.I.T.

What do we want?

“Create flow by eliminating waste”

- Lean Thinking -

“Working software over comprehensive documentation”

- Agile Manifesto -

RTF: Running tested features

http://ronjeffries.com/xprog/articles/jatrtsmetric/

“Open, Honest communication”

- XP Principle -

“Rapid feedback”

- XP Principle -

How we do it?

How we do it?

True Story

Cross-functional-flat teamsD

T

B

Developer

Tester

Business Analyst

Product OwnerP

DD

D T

BD

DD

D T

BD

DD

D T

BD

P

Cross-functional teams

● Small

● Same table

● Collaborative

Cross-functional teams

● Small

● Same table

● Collaborative

Rapid

feedback

Communication

Story driven iterations

● Smallest unit of work with value

● Short iterations

● Prioritize every iteration

Story driven iterations

Backlog Ready to Dev Ready to Test Ready to Close Release

Prioritize Backlog

Backlog Backlog

DT

B P

● Customer focus

● Business value

Prioritize Backlog

Backlog Backlog

DT

B P

● Prioritize

● Customer focus

● Business value Communication

Eliminate wasteRapid

feedback Working software

3 Amigos

Backlog

B

Ready to Dev

TD

● Acceptance criteria

● Split stories

● Solve questions

3 Amigos

Backlog

B

Ready to Dev

TD

● Acceptance criteria

● Split stories

● Solve questions

Rapid feedback Communication

Development

Ready to Dev Ready to Test

D

● ATDD/TDD

● Pair programming

● CI

Development

Ready to Dev Ready to Test

D

● ATDD/TDD

● Pair programming

● CI Communication

Eliminate wasteRapid

feedback Working software

Testing

Ready to Test Ready to Close

● ACs vs AT review

● Exploratory testing

T

Testing

Ready to Test Ready to Close

● ACs vs AT review

● Exploratory testing

T

Rapid

feedback Communication

Sign-off

Ready to Test Ready to Release

● ACs + AT review

BT

D

Sign-off

Ready to Test Ready to Release

● ACs + AT review

●

BT

D

Communication

Eliminate wasteRapid

feedback Working software

Acceptance tests

● Define/prove system behaviour

● Sync and related to code

● Collaborative ownership

Q&A

Alex Fernandez

@_alexfdz

alexfdz

afernandeznogueria