JSD steps[edit]
When it was originally presented by Jackson in 1982,[5] the method consisted of six steps:
Entity/action step
Initial model step
Interactive function step
Information function step
System timing step
System implementation step
Later, some steps were combined to create a method with only three steps.[6]
Modelling stage (analysis): with the entity/action step and entity structures step.
Network stage (design): with the initial model step, function step, and system timing step.
Implementation stage (realisation): the implementation step.