system development lifecycle

System development lifecycle The classic model of software development was the Waterfall model, which considered the process as progressing through a series of stages from requirements analysis through specification, design, coding, testing to documentation and maintenance. Each stage was completed before the next was started. The absence of any significant iteration between the different stages has led to the abandonment of this model. The stages involved were: - Feasibility: Is the project technically, operationally, financially …

…a complete system. The system needs to be tested to ensure that interfaces between modules work (integration testing), the system works on the intended platform and with the expected volume of data (volume testing) and that the system does what the user requires (acceptance/beta testing). Maintain: Inevitably the system will need maintenance - hopefully we haven't got anything wrong but people will want extra things added or existing things changed over time. ------------------------------------------------------------------------ **Bibliography**