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OOAD Object Modeling Techniques Q/A #5
Question:Write a short note on SD.
Answer:
A Structured Design, SD is a methodology to break down a problem in to smaller problems and then solving the smaller problems. Sub-problems are then arranged in to a hierarchy to forms a sequence of procedures. Structured design is the art of designing the components of a system and the their interrelationship in the best possible way.
Importance of structured design
Good designing to make good programs.
Code is easier to understand.
Helps to make programs modular.
Easier to troubleshoot.
It helps making programming more systematic and less ambiguous.
Basic steps of structured design
Identify major components of task /problem /goal /system.
Decompose the system in to sub systems. These sub systems represent procedures.
Group related components.
Repeat the process as and when needed on individual components.
Organize components in a hierarchy and a consider the data flow .