2. Specification

The system design specification describes the solution to the problem in the form of a system design that makes use of the identified relevant human factors knowledge and the envisioned technology. The system specification consists of:

a. Objectives: what should this system improve or achieve over the current state as to solve the problem. 

b. Design scenarios: a description of the problem and how it will be solved using the technology.

c. Use cases: step-by-step descriptions of a user in a specific context and how they interact with the system and the environment. It describes typically what actions the user takes, but now how this is performed.

d. Interaction design patterns: these are design patterns that focus on things as usable interface design and control options. As such, thus describing how an action is performed. 

e. Team design patterns: these are design patterns that focus on things such as how humans and agents can collaborate effectively through information sharing.

f. Claims: these are statements that explain what the system should support or achieve with a given functionality, as to achieve one or more desired objectives.