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| Each month Dr. Eric Schaffer answers selected questions on usable interface design. | Recent Questions |
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July 30, 2008 – submitted by Donna Biffar of Illinois, USA |
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Question: Is it ever appropriate for users to be trained in the use of a prototype application prior to usability testing? |
Eric's response: It is a normal practice to give users training and then test them. This is a bit limited, as you can only afford a few hours of training in most practical situations, but this lets you get an indication of longer term use. |
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March 3, 2008 – submitted by Charlene Julien of AZ, USA |
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Question: Hi, there seems to be a trend towards using rapid prototyping to drive out requirements. At one employer we used Dreamweaver; at another, we used iRise. I am wondering what tool(s), if any, you recommend for high fidelity prototyping? |
Eric's response: First I have to say that rapid prototyping is hardly an optimal way to drive out user requirements. I think rapid prototyping is pretty much only used for very small and non-critical applications. In user-centered design we do prototypes to support various data gathering and usability testing programs. We have a neat little tool that goes along with PowerPoint™ or Visio™ and we use that for basic wireframe mockups. If we need more interactivity we mock it up in HTML. But the key thing is definitely NOT the tool that you use to prototype. It is the process that you are using. Rapid prototyping has been around for ages and I don't think I see an uptrend in its use. In fact there have been several short term fads since rapid prototyping was in vogue (e.g., Extream Programming). |
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