Software Design

Software Design principles:

such as:

1)Abstraction

2)Decomposition and Modularization

3)Coupling and Cohesion

4)Encapsulation

5)Sufficiency,completeness and primitiveness

(sufficiency and completeness with respect to the given specifications; ensure the software does whatever is asked for,in all respects and in a very simple way as possible.)

Considerations such as:

Compatibility,

Extensibility,

Fault-tolerance,

Maintainability,

Reliability,

Reusability,
Robustness,

Security,

usability and interoperability.

Main design process:

Requirements specification -> Architectual design decisions -> Logical design details ->

Detailed design decisions -> physical design details.

alias : high level design -> detailed design.

Functional decomposition(Structured Design).

Object-oriented approach (OO Design).