1. Design II Due today: Homework #3 Next Class: Pressman 14; User Manual Questions? / Quiz Review Team Status Reports Designing for the Web (WebE) cont. Bio Break ( 5 minutes ) Predictwallstreet.com example Design Principles

2. Testing Issues for Web Apps Proofing content Test navigation (links) Webpage = unit of testing Scenario based testing (use cases) Compatibility issues (e.g. which browsers?) User testing with representative sample

3. Other Web Issues Updating content Outsourcing to vendors Scalability Politics – who owns the site?

4. Design Issues List Modularity Scalability Maintainability Testability Usability Reliability Compatibility Security Content Performance

5. Quiz #1 Results Range of scores: 64% - 98% Mean: 82% Median: 82% Standard Dev.: 10% Normally Distributed

6. Design Model Data Design Architectural Design Interface Design Component Design

7. Design Principles Modularity –Cohesion –Coupling (IBM’s 4* Modules) Flexibility Scalability Reliability Usability