Which component is NOT part of the Design phase in instructional systems development?

The component that is not part of the Design phase in instructional systems development is describing instructor behavior. In the instructional design process, the Design phase focuses on developing course content, creating learning objectives, constructing assessments, and organizing the sequence and structure of delivery.

Describing instructor behavior typically pertains to the roles, strategies, or methods an instructor might use to deliver instruction effectively. This aspect is more aligned with the Delivery or Implementation phase rather than the Design phase, where the emphasis is on outlining what learners are expected to achieve and how the content will be presented or assessed.

Therefore, while all the other options are integral to structuring an effective instructional material/framework, describing instructor behavior does not fit within the scope of the Design phase.