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FRAMEWORKS - HOPEX DoDAF V2 > HOPEX Implementation of DoDAF V.2.02 > Viewoints and Model Use Cases

Viewoints and Model Use Cases

Use case example

A critical part of defining an architecture is answering what is known as, the set of standard interrogatives, which are the set of questions, who, what, when, where, why, and how, that facilitate collection and usage of architecture-related data.

DoDAF provides a means of answering these interrogatives through the DoDAF Viewpoints and DoDAF-described Models.

Summary table of use cases

This matrix is useful in both data collection, and decisions on how to best represent the data in DoDAF-described Models that are appropriate to the purpose for which the architecture is created.

	What (Date)	How (Function)	Where (Network)	Who (People)	When (Time)	Why (Motivation)
Viewpoint	AV DIV	OV SV SvcV	OV SV SvcV	OV	CV OV PV SV SvcV	AV CV OV StdV SV SvcV
Model	AV-2 DIV-1 DIV-2 DIV-3	OV-5a OV-5b OV-6a, b, c SV-4 SV-10a, b, c SvcV-10a, b, c	Ov-2 SV-2 SvcV-2	OV2 OV-4	CV-2 CV-4 OV-6c PV-2 SV-8 SvcV-8 SV-10c SvcV-10c	AV-1 CV-1 OV-6a StdV-1 StdV-2 SV-10a SvcV-10a

Use case example

Let's figure out a decision is required on changing a logistics transformation process. Here are the questions which needs to be investigated

Each interrogative impact on measures of performance and can be described by a DoDAF-described model.

WHAT	The process	Data description
HOW	Documentation of the process	Function description
WHERE	Place of process execution	Network description
WHO	Performers of the process	People description
WHEN	Time frame required	Time description
WHY	Rules, Goals and Expected Results	Motivation description

Dependencies Between Views

In HOPEX DoDAF there are many dependencies between viewpoints. Some viewpoints fill automatically as other viewpoints are filled in.