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- Evaluation in visualisation papers is infrequent, and apparently poor when it occurs.
- This is because it is hard.
- But more important is to understand when and why evaluation is needed - and thus to do it, interpret it and judge it better.
Empirical evaluation of
generative artefacts is
Generative artfacts are ones which exist to make other things.
This includes methodologies, toolkits, design principles, guidelines and visualisation techniques or algorithms.
It is only the software produced by these by a particular designer for a particular purpose that can in pronciple be evaluated.
Even then software is itself generative as it is the instance of use by a particular user for a particular task.
However they can be justified through reasoningand evaluation can form part of this.
Figure 1. the two sides of validation: justification and evaluation
Forms of evaluation
- Summative - is it right
- Formative - can I make it better
- Explorative - can I understand moor
Summative and formative evaluation are good in design ... but it is usually explorative evlauation yuo need in research.