5.4 Development Methodologies

5.4 Development Methodologies

1. Linear

   • Waterfall
     • Easy to Manage
     • Inflexible
     • Less Creative

2. Iterative

   • Small stages of the solution are built and defined
     • Includes a lot of user or client involvement
   • More natural way of working
   • Agile Development Methodologies
     • Dynamic System Development
       • User involvement leads to accurate decisions
       • Project team is empowered
       • Addresses critical business needs
       • Communication and cooperation must be efficient and effective
     • Extreme Programming
       • Client requirements based on 3 sentence user stories
         • Face to face meetings give more detail
           • Release plan meetings held
       • Team has an idea of how long development of the program will take
       • Use special software for automated tests
     • Rapid Application Development
       • Use computerised development tools
       • GUI's
       • Computer Aided Software Engineering (CASE)
       • Database Management Systems
       • Purpose is to develop as solution quickly
       • Not a technically perfect solution
       • Low cost solution
       • 4th Generation Programming Languages
         • Similar to English
         • Java
         • Visual Basic
         • C++
       • Uses focus groups
         • User testing of designs
       • Reusing old software components
     • Crystal
       • Minimum amount of paperwork
       • Looking for compact teams
       • Focus is on people
       • Improved communication
   • Process of repeating a sequence of steps until the required answer is achieved
   • Less budget control
   • Overall focus of work may be lost