A Requirements Approach is a roadmap for the developing requirements for a project. The Roadmap should cover all phases of requirements development:

This document is a use case template that has its styles restricted. Notice how the styles in the Styles Window describe the purpose of the style and not the style itself.

Requirements Document - an MS Word template with pre-set fonts, styles, chapter headers and guidelines.

BABOK 2.0 - The Big Picture

BABOK 2.0 Tasks and Techniques

BABOK 2.0 Tasks, Inputs, and Outputs

Use Case Specification - an MS Word template with pre-set fonts, styles, chapter headers and guidelines.