The Software Development Process

• Process Overview
• Specification
  • Avoid unnecessary system dependencies
  • Identify portability requirements
  • Consider portability costs
• Design
  • Choose a suitable methodology
  • Isolate system dependencies
  • Identify external interfaces
  • Select and use standards
• Implementation
  • Select a suitable language
  • Identify the portable subset
  • Follow a portability discipline
  • Follow standards carefully
• Test and Debug
  • Develop a portable test plan
  • Keep portable error records
• Documentation
  • Separate system dependencies
  • Avoid confusing the users
  • Document the porting process
• Maintenance
  • Maintain single versions
  • Simplify fixes and upgrades
  • Enjoy the benefits of porting