This early stage in the software development process is known as the software requirements specification (SRS) stage.An SRS document is a plan for what the software will do and how it will do it.It may be performed on an iterative basis on every produced engineering element during development and may begin with the validation of the expressed stakeholder requirements.When the validation process is applied to the system when completely integrated, it is often called final validation.is the verification of a product or system using models, calculations and testing equipment.Analysis allows someone to make predictive statements about the typical performance of a product or system based on the confirmed test results of a sample set or by combining the outcome of individual tests to conclude something new about the product or system.
We might hold a requirements review and in the process discover ambiguous requirements (verification) and unneeded ones (validation).
The four fundamental methods of verification are Inspection, Demonstration, Test, and Analysis.
The four methods are somewhat hierarchical in nature, as each verifies requirements of a product or system with increasing rigor.
A local software company has volunteered to design a database for use on the library's PCs that would streamline library services.
Before the company starts to write the programming code for the database, the software developers have to gather detailed information about what the current library processes are and map out the specifications for automating the components of those processes.