What Does Structured Systems Analysis And Design Method (SSADM) Mean?
Structured systems analysis and design methodology (SSADM) is a set of standards for systems analysis and application design. It uses a formal methodical approach to the analysis and design of information systems. It was developed by Learmonth Burchett Management Systems (LBMS) and the Central Computer Telecommunications Agency (CCTA) in 1980-1981 as a standard for developing British database projects. The SSADM is an open methodology based on the waterfall model. It has been used by many commercial businesses, consultants, educational establishments and CASE tool developers.
Techopedia Explains Structured Systems Analysis And Design Method (SSADM)
- Logical Data Modeling: This involves the process of identifying, modeling and documenting data as a part of system requirements gathering. The data are classified further into entities and relationships.Data Flow Modeling: This involves tracking the data flow in an information system. It clearly analyzes the processes, data stores, external entities and data movement.Entity Behavior Modeling: This involves identifying and documenting the events influencing each entity and the sequence in which these events happen.
Some of the important characteristics of SSADM are:
- Dividing a project into small modules with well defined objectives Useful during requirements specification and system design stage Diagrammatic representation and other useful modeling techniques Simple and easily understood by clients and developers Performing activities in a sequence
The stages of SSADM include:
- Determining feasibility Investigating the current environment Determining business systems options Defining requirements Determining technical system options Creating the logical design Creating the physical design
