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User Goal: refine expressiveness
The concept model must accommodate the expression of statements which accurately represent the intent of the speaker (the user doing the data capture), allowing the speaker to express concepts in their preferred idiom.
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These statements can be visualized in a graph like this 
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Design
User Goal: preserve intent
The concept model must accurately represent the intent of the speaker by preserving the exact expression of a concept. Though presenting the underlying concept is a reasonable assumption, doing so applies a possibly inaccurate interpretation.
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