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Use of Color
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CD-Visibility
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... use of color may help visual interpretation;... introduction of colors to identify the different levels/layers....
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Level of abstraction
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CD-Diffuseness
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...too many words...;...too many words within one notation...;...the template is not generic enough...
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Separation of notations
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CD-Closeness of Mapping; CD-Hard Mental Operation
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... separate recommendation into different or individual circles;... the recommendation part needs to be simplified or separate individually [under suitable category];... it is in some cases hard to separate the individual solutions in one bottom node into separate issues...
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Multi-view
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CD-Role Expressiveness
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... could use multiple templates;... might be hard to see whether the user wants to work on the high or low level of the hierarchy...
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