CMSC 10200

1
Programming the WWW II

• CMSC 10200
• Spring 2003
• Lecture 17

2
Software Engineering

• Life Cycle development, release,
  maintenance/use, retirement
• Programmer time vs. computer time

3
Development process

• What are requirements?
• Design a code (what are the classes?)
• Implement
• Test
• Iterate (if necessary) and release

4
Testing

• Walkthrough
• Defect (try to break it)
• Black-box vs. white-box testing

5
Prototyping

• Program created to explore particular features of
  a proposed/evolving system
• Testing new ideas interface, using a new class
  library, getting preliminary feedback, can this
  be done?
• Gives insight to potential problems, new
  requirements, gotchas

6
Development

• Requirements
• Design
• Refinement (objects, relationships, design,
  implement, test and integrate)
• Test
• Release

7
Other notes

• Dont reinvent the wheel!
• http//java.sun.com/j2se/1.4.1/docs/api/index.html
  
• Google

8
Case Study Paint Box

• Look at successive refinements to get clues for
  working through your project
• Look at code to get more insight on drawing in
  your applet!