Views on quality

• users mainly concerned on external quality
  • Usability
  • Accessibility
  • Transparency
  • Security
  • Safety
  • Interoperability (browsers)
  • …
• managers and developers mainly concerned on internal quality
  • Interoperability (platforms)
  • Evolvability
  • Maintainability
  • Portability
  • Cost effectiveness
  • …

But many overlaps