Extreme Programming

1
Extreme Programming

• Fits well with AP and AOP

2
Problem

• Many software projects are canceled or are late.
• Reason use of technology-centric models not
  human-centric models

3
Human-Centric Design Process

• developer
• creates succession of system version
• works as an effective team member that
  understands how the evolving system shows up in
  the customers world
• what is the value
• what are the breakdowns
• skillfully listens and carefully co-designs each
  improvement with customer

4
Human-Centric Process

• ends with a system meeting the specs
• and with a satisfied customer

5
Comm. ACM Nov. 2001

• The Core of the Third-Wave Professional by
  Denning and Dunham
• Quote Extreme Programming is an excellent
  example of a technology that supports adaptive
  software development of this kind.

6
From the text book

• Chapter 6 many small adjustments like driving a
  car.
• Chapter 8 Basic principles rapid feedback see
  hw 4, assume simplicity, incremental change,
  embracing change, quality work
• Extreme programming is a kind of Yoga for
  programmers live in the moment

7
How does AP support Extreme Programming?

• Growth plans
• Write test cases using sentences
• Structure-shyness through traversal strategies
  what can you do if customer does not know exactly
  what the class graph will be that is the way AP
  was created.

8
How does AOP support Extreme Programming?

• Use aspects to program growth phases align
  phases with concerns e.g., in the next phase we
  add the synchronization concern.
• Programming by addition instead of modification
• Short releases A property-based aspect can do a
  lot of changes.
• Easier refactoring? Easy undoing a change.