Which document would contain specific requirements outlining how the solution should function?

The Solution Design Document (SDD) is central to the development process as it articulates how the specific requirements gathered during earlier stages will translate into a functional solution. This document acts as a blueprint that outlines the architecture, components, interfaces, and data for the system to meet the defined requirements.

By detailing the agreed-upon functionalities, the SDD ensures that developers and stakeholders have a clear understanding of the solution’s capabilities and how it is expected to behave in various scenarios. This is crucial for guiding the implementation team and for validating the final product against the desired outcomes outlined in the earlier documentation.

In comparison, while the Process Definition Document (PDD) provides an overview of the process to be automated, such as high-level tasks and objectives, it does not focus on the technical specifications. The Functional Requirements Questionnaire (FRQ) is typically used to gather functional requirements but does not provide the detailed guidance for implementation that the SDD does. The Process Design Instruction (PDI), on the other hand, is often more operational in nature, detailing how processes are designed, rather than outlining the comprehensive requirements for functionality. Thus, the SDD stands out as the correct choice for documenting specific requirements of how a solution should function.