Jackson System Development - JSD Steps

JSD Steps

When it was originally presented by Jackson in 1982, the method consisted of six steps

1. Entity/Action Step
2. Initial Model Step
3. Interactive Function Step
4. Information Function Step
5. System Timing Step
6. System Implementation Step

Later, some steps were combined to create a method with only three steps.

1. Modelling Stage (Analysis): with the Entity/Action Step and Entity Structures Step.
2. Network Stage (Design) : with the Initial Model Step, Function Step, and System Timing Step.
3. Implementation Stage (Realisation) : The implementation Step.