Category Archives: Requirements Modelling and Analysis i* SDM

i* SD Model

Reference: Reference: Neil Maiden (2011) Requirements Engineering Lecture Notes

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Strategic Dependency model (SD)

An SD model describes a network of dependency relationships among various actors in an organisational context. The actor is usually identified within the context of the model. This model shows who an actor is and who depend on the work … Continue reading

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The i* Goal Modelling Approach

i* (pronounced “i star”) or i* framework is a modeling language suitable for an early phase of system modeling in order to understand the problem domain. i* modeling language allows to model both as-is and to-be situations. The name i* refers to the notion of … Continue reading

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Context Diagram

A context diagram is, in essence, a data flow diagram. In its simplest form the system that is to be designed and developed is represented by a circle, with the name of that system written in the circle. Actors, which … Continue reading

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Requirements Modelling Vs Description

Requirements description describe future system properties document-based, not amenable to automated analysis analysis based on checklists and matrices Requirements modelling model future system, amenable to automated analysis models used to infer properties but costs associated with requirements modelling Reference: Neil … Continue reading

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