Agile Development and Extreme Programming Practices

Agile Development and Extreme Programming Svetlin Nakov National Academy for Software Development academy.devbg.org

Agenda ,[object Object],[object Object],[object Object],[object Object],[object Object]

What is a Methodology? ,[object Object],[object Object],[object Object],[object Object]

The Waterfall Development Process

The Waterfall Process ,[object Object],System Requirements Software Requirements Analysis Program Design Coding Testing Operations ,[object Object],[object Object]

Formal Processes ,[object Object],System Requirements Software Requirements Analysis Coding Testing Operations Preliminary Design Analysis Program Design Coding Testing Usage Preliminary Design Document UI Design Document Test Plan Final Design Preliminary Design Software Requirements Specification Prelim. Review Program Design Design Review Operating Instructions

Agile Manifesto ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],The Agile Spirit

Agile Methodologies ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The XP Guru: Kent Beck ,[object Object],[object Object],1 st ed. Oct 1999 2 nd ed. Nov 2004 Kent Beck

The 12 Key Practices ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

1. Metaphor ,[object Object],[object Object],[object Object],[object Object]

How It Works for Me? ,[object Object],[object Object]

2. Release Planning ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How It Works for Me? ,[object Object],[object Object],[object Object],[object Object],[object Object]

3. Testing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Test-Driven Development ,[object Object],[object Object],[object Object],[object Object],[object Object],public void TestMultiplication() { Dollar five = Money.dollar(5); AssertEqual(new Dollar(10), five.times(2)); AssertEqual(new Dollar(15), five.times(3)); }

How It Works for Me? ,[object Object],[object Object],[object Object],[object Object]

4. Pair Programming ,[object Object],[object Object],[object Object],[object Object],[object Object]

Pair Programming ,[object Object],[object Object],[object Object],[object Object]

How It Works for Me? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

5. Refactoring ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

6. Simple Design ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

7. Collective Code Ownership ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

8. Continuous Integration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

9. On-Site Customer ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

10. Small Releases ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How It Works for Me? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

11. Forty-Hour Work Week ,[object Object],[object Object],[object Object],[object Object],[object Object]

12. Coding Standards ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The 13 th Practice? The Stand Up Meeting ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

People Communicate Most Effectively Face-to-Face Richness of the communication channel Communication effectiveness 2 people at whiteboard 2 people on phone 2 people on email Videotape Paper

How XP Solve Some SE Problems Intensive teamwork Staff turnover Changes are welcome Business changes Customer part of the team Misunderstand the business Unit tests, customer tests Defect rates Extensive, ongoing testing, system always running Cost of changes Intensive customer presence Cancelled project Short development cycles Slipped schedule Solution Problem

So What does XP Apply to? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mix-and-Match ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Agile Development and Extreme Programming Practices

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