What is the meaning for Design Specification in documentation of a project? [closed]

Question

Can anybody help me to understand what is the meaning to design specification in the documentation of a project?

Answer 1

In the context of software, Design Specification is usually a design document that describes all data, architectural, interface and component-level design for the software.

A design specification provides explicit information about the requirements for a product and how the product is to be put together. Its use is called for where a product has to be specially made to meet a unique need. For example, a design specification must include all necessary information that I've listed above i.e. data, architectural, interface and component-level design for the software not excluding the documentation.

An example can be found Here