Tuesday, January 21, 2014

Structured Systems Analysis and Design Method (SSADM)

According to OGCIO (2014) SSADM is used for the analysis and design of computer systems. It contains an integrated set of standards and guidelines. These guidelines are Structural standards which provide structure of a project, Technique guides that defines a set of proven usable techniques along with guidelines on when and how to use them and finally Documentation standards to record the products of development activity.

According to OGCIO (2014) this method only covers the Feasibility Study Phase,System Analysis and Design Phase of the SDLC and in the Implementation Phase only the first major step  which Physical System Design is covered.

According to OGCIO (2014)  the stages in SSADM are :

·         Stage 0 : Feasibility
This is to to establish whether a proposed information system can meet the requirement sof the specified business requirements of the organization and establish the business case for the proposed information system.
·         Stage 1 :Investigation of Current Environment
This is to To understand the current environment and deliver a description of current services and to identify the problems associated with the current environment.
·         Stage 2 :Business System Options:
To propose a range of options for the required system to assist the Project Steering Committee to select the best solution out of the proposed options.
·         Stage 3 :Definition of Requirements:
Specify the processing and data requirements of the selected system.
·         Stage 4: Technical System Options
To identify and define the possible approaches implement the required system.
·         Stage 5: Logical Design
Design of the menu structure and dialogues of the required system
·         Stage 6: Physical Design
·specify the physical data and process design. This is done using the

language and features of the chosen physical environment and incorporating installation 


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