Info 3- Developing ICT solutions

System development life cycle

2 methods

1- Traditional

once started no end and feedback is at the end

2- waterfall

continuous with feedback after each stage

Stages of development

• Analysis
• Design
• contructing the solution
• testing
• installation and conversion
• review and maintenance

Successful ICT development

factors that may aid a development's success

• management and end user involvement
• realistic expectations
• professional standards
• good teamwork

factors that may cause a development to fail

• inadequate analysis
• poor design
• inappropriate testing
• poorly organised installation and changeover
• poor use support and maintenance
• poor project management

Formal project management

Projects need to have:

A defined timescale

An approved budget

Limited resources

Development methodologies
Main two categories:
1- linear (waterfall)
2- interactive (Rapid Application development-computerised development tools with prototyping, Hesse improve development time sand quality )