I *

Question 1

What is I*?

Answer 1

A modelling framework that attempts to introduce social modelling and reasoning into the requirements engineering aspects of software development methods.

Question 2

Key features of I*

Answer 2

Recognises primacy of social actors who have: goals beliefs abilities and commitments
Adopts social ontology for modelling
Social analysis drives the entire system development process

Question 3

Examples of modelling questions

Answer 3

What does each actor want?
How do actors achieve what they want?
Who do actors depend on to achieve what they want ?

Question 4

Features of actors

Answer 4

They are central conceptual modelling abstraction
Two types: logical and physical actors
Autonomous meaning not controllable and not perfectly knowable

Question 5

What is strategic dependency model?

Answer 5

The SD is a network of directed dependency relationships among actors.

Question 6

What are the dependency types?

Answer 6

Goal dependency: dependum is an assertion, depended needs dependee to make it true
Task dependency: dependum is a specified activity the dependee must enact
Resource dependency : dependum is a resource. Dependee must product it for depender
Soft goal dependency: dependum is a quality - speed cost reliability. Depender depends on dependee for it.