Explain in detail the design concepts.
Abstraction
- Functional abstraction
- Data abstraction
- Control abstraction
Information hiding
- Every module in the system hides the internal details of its processing activities and modules communicate only by over defined interfaces.
Structure
- It permits the decomposition of a large system into smaller, more manageable units with well explained relationships to the other units in a system.
- Network is the most general form of structure.
Hierarchical Structures/Structure Charts
- It depicts the structure of subroutines in a system, the data passed among routines, can be indicated on the arcs connecting routines.
Modularity
- Modular system consists of well-defined, manageable units with well defined interfaces between units.
Concurrency
- Independent processes that can be activated concurrently if multiple processors are available.