explain jsd in detail
Answers
Jackson System Development
Overview
Jackson System Development (JSD) is a method of system development that covers the software life cycle either directly or, by providing a framework into which more specialized techniques can fit. Jackson System Development can start from the stage in a project when there is only a general statement of requirements. However, many projects that have used Jackson System Development actually started slightly later in the life cycle, doing the first steps largely from existing documents rather than directly with the users. The later steps of JSD produce the code of the final system. Jackson’s first method, Jackson Structured Programming (JSP), is used to produce the final code. The output of the earlier steps of JSD are a set of program design problems, the design of which is the subject matter of JSP. Maintenance is also addressed by reworking whichever of the earlier steps are appropriate.
From the technical point of view there are three major stages in Jackson System Development, each divided into steps and sub-steps. From a manager's point of view there are a number of ways of organizing this technical work. In this overview we first describe the three major technical stages and then discuss JSD project planning, the variation between plans, and the reasons for choosing one rather than another.
@H¥DRA™