Before we begin you must know –
The difference between a Requirement and a Specification
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|They outline “what” the software must do||They outline “how” the software will be created|
|They outline the software from the end-user , business and stakeholder perspective.||They outline the software from the technical team perspective.|
There are a plethora of terms and terminology for various documents
Specification Documents like -
- SRS - System Requirement Specifications
- FRS - Functional Requirement Specifications
- BRS - Business Requirement Specification
- CRS- Compatibility Requirements Specifications
- PRS - Performance Requirements Specifications
- RRS- Reliability Requirements Specifications
- CRS-Configurations Requirements Specification
Requirement Documents like -
- BRD - Business Requirement Document
- SRD - System Requirement Document
Points To Ponder
- In many places these documents are not separate and are used interchangeably.
- Specifications and requirements roughly communicate the same information, but to two completely different audiences.
- For a given project which documents of above are created, depends on the “nature” of the project and the organizational “processes”
In this tutorial we will discuss SRS and BRS
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|It describes at very high level the functional specifications of the software||It describes at a high level , the functional and technical specification of the software|
|It is a formal document describing about the requirement provided by client (written, verbal)||It specifies the functional and non-functional requirements of the software to be developed|
|Usually its created by the Business Analyst who interacts with clients|| Usually its created by the System Architect who is an technical expert . |
Though in smaller companies the BA will create SRS as well.
Some companies do not create SRS altogether. Their BRS is detailed enough to be used as SRS as well.
|It is derived from client interaction and requirements||It is derived from the BRS|