The fourth task described as part of the Requirements Analysis and Design Definition knowledge area is defining the requirements architecture. This task is about establishing the structure of all the requirements to form cohesive requirements that support the business objectives for the change.

In this section, you will learn about the different considerations when establishing a requirements architecture. You will also understand that a requirements architecture will assist the business analyst in all aspects of requirements management and communication throughout the life of the requirements. It will also become clear how the requirements architecture supports the successful delivery of the requirements. Let's start by defining the purpose of this task.