Usability: Understandability

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Feature 1 2 3 4 5 6 7 8 9
Architectural overview, with diagrams, is available. 0.5 0.8 0.9 0.9 1.0 1.0 1.0 1.0 1.0
Case studies of use are available. 0.1 0.2 0.3 0.3 0.4 0.5 0.5
Descriptions of intended use cases are available. 0.1 0.2 0.3 0.5 0.7 0.8 0.8 0.8 0.8
Design rationale is available – why the system does things the way it does. 0.5 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
High-level description of how the product works is available. 0.8 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
High-level description of what the product does is available. 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0
High-level description of what/who the product is for is available. 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0