1. Extreme Programming
(XP) for Dummies
Jon McNestrie

2. Extreme Programming (XP) was
conceived and developed to
address the specific needs of
software development conducted
by small teams in the face of
vague and changing
requirements.
I'm not a great programmer;
I'm just a good programmer
with great habits. - Kent Beck

3. Let’s Do AGILE!
• The solution to all of your problems?
• The reason for things getting worse?
• A mirror showing the ugly truth…
Scrum can help you
build crap software
very very quickly
- Jon McNestrie

4. Great Habits
• Fast Feedback
• Test First Development
• Software Engineering /
Craftsmanship

5. Code Reviews
• A ‘quality gate’?
• Who should do code
reviews?
• Why?
HOURS

6. Pair Programming
• Twice the effort?
• Driving and Navigating
• Shared understanding
SECONDS

7. Unit Testing
• Isolated testing of the smallest
‘units’ of the application
• Easily automated, repeatable
• Confidence when refactoring?
MINUTES

8. Test Driven
Development (TDD)
• Red -> Green -> Refactor
• It’s about Design
• Tests are a happy side
effect
MINUTES

9. Behaviour Driven
Development (BDD)
• Gherkin / Cucumber
• User readable tests
• Backed by ‘Step
definitions’ (code)
MINUTES

10. Acceptance Test
Driven Development
• Test first BDD
• The missing link between
user stories and the
product
• Documentation?
HOURS

12. Continuous Integration
• Automated build and test
• Hooked up to source
control
• Confidence in the
codebase
MINUTES

13. Continuous Delivery
• An automated build, test
and deployment pipeline
• Frequent production
releases
• The end of the fear
HOURS

14. Shorter and shorter feedback loops
Improved flow and realisation of value
Quality is a happy accident