Software requirements specifications and 
Functional requirements specifications.

srs rfers to software requirement specifications or system  
requirement specifications .
it contains the functionality to be devoloped according to 
the customer requirements.

if here is any mistake plz post me @ 
madamanchi.sri@gmail.com

SRS( Software requirement specification) to develope an 
application w.r.t to customer specification what are things 
we  need to discuss and get the accordingly is nothing but 
SRS document

SRS contains the BRS or FRS and HRS(Hardware Requirement 
Specifications) That is the environment, OS, Database etx:

SRS (software requirement specification) is a document that 
is prepaired according to the clients requirement.

SRS software requirement specification

The name itself it clearly defines REQUIREMENTS what are all
expected from the client side.
It may be in form wise requirements or simply document
formation.

SRS contains client requirement specifications , system 
requirement specifications, and functional requirement 
specification

SRS document contains tentative project planning,analyse 
functional requirement & technology selection

Table of Contents
Revision History
1.	Introduction	
1.1	Purpose	
1.2	Document Conventions	
1.3	Intended Audience and Reading Suggestions	
1.4	Project Scope	1
1.5	References	1
2.	Overall Description	2
2.1	Product Perspective	2
2.2	Product Features	2
2.3	User Classes and Characteristics	2
2.4	Operating Environment	2
2.5	Design and Implementation Constraints	2
2.6	User Documentation	2
2.7	Assumptions and Dependencies	3
3.	System Features	3
3.1	System Feature 1	3
3.2	System Feature 2 (and so on)	4
4.	External Interface Requirements	4
4.1	User Interfaces	4
4.2	Hardware Interfaces	4
4.3	Software Interfaces	4
4.4	Communications Interfaces	4
5.	Other Nonfunctional Requirements	5
5.1	Performance Requirements	5
5.2	Safety Requirements	5
5.3	Security Requirements	5
5.4	Software Quality Attributes	5
6.	Other Requirements	5
Appendix A: Glossary	5
Appendix B: Analysis Models	6
Appendix C: Issues List	6

Functional requirements specification and 
Non functional requirement specifications