Requirements are an inventory of events, conditions, or functions that need to be satisfied and tracked by an application. 

Requirements are described in various forms.  Some are non-functional while others articulate specific business rules that must be satisfied.  They can also be typed directly into use case text, but if requirements can be shared by a number of use cases, the rule of thumb is to separate them into individual requirements and link them to the use case.

Typically, requirements are specified in an Application Profile, created by the Application Accelerator, and made available for update as Application Requirement rules (instances of Rule-Application-Requirement rules) as a project evolves.

They also are referenced in application, use case and flow rules. 5.5 DCO

For details about working with requirements, see the Pega Developer Network articles listed under the Direct Capture of Objectives section of the Implementation Methodology knowledge category.5.5 DCO 6.1 laplm 3/3/10

	Direct Capture of Objectives, Application Profile, Application Accelerator, implementation methodology, sizing tool
	About Application Requirement rules About Application Use Case rules About Application rules About Flow rules

Definitions — R