Specification Vs Framework Theory

Question

What is the difference between Specification and Framework with some examples ?

Is JSF a framework or a specification ?

Answer 1

Definitions in one sentence:

A specification is an explicit set of rules that define how to implement a use case.

A framework facilitates and structures the actual implementation of a use case.

Cake analogy:

If a cake recipe is a specification, a cake mix is a framework.

Examples:

Spring is a framework to create web applications (among other things)

JSR-250 is a specification for Java annotations.

JSF is the specification of a framework, of which there are several widely-used implementations