Explain Scripts and its components.

• Scripts are DS used to represent a stereotyped sequence of events, in a context.

• They consist of a set of slots.

• Each slot carries some information about the types of values it will contain, and also the default values, in absence of any.

Components of scripts: (PER-SRT)

Props: Slots representing objects involved in events.

Entry conditions: Conditions that must be satisfied before events in the script can occur.

Results: Conditions that will be true after events in script occur.

Scenes: Sequence of events that occur. The events are represented 

in Conceptual Dependency form.

Roles: Persons involved in the events.

Track: Variations on the script. Different tracks may share components of the same script.