Tuesday, July 08, 2008

Assessing Weights for Users’ Needs, Part 2

Weighting user needs Part 2 ...

"Yesterday, I talked about how we come up with each row in our Weighted Differences Matrix. For each of these differences, we need to then assess how important it will be to the user’s experience, which we represent with a weight. The weight is a number from zero to ten, where a zero means the feature isn’t important at all and a ten means the design would fail without it. The question then becomes, how do we decide what the weight should be for each row?

The quality of the weights will depend on what information the team already has. In the case of the project I described in my presentation, the first time that team sat down to create their matrix, they had done very little user research (as in virtually none) to work from. So, to some extent, they were going to guess on the weights. However, they had been in business for years with a web site that was attracting millions of visitors a month, so they knew something about their users and the users’ needs. It’s with this information that they’d start the process of assessing weights.

Whether the team has good research to back up their assessment, or whether they are just guessing from their experience, the process is basically the same. Once we have our list of differences (as I explained in yesterday’s post), we assess the weights."    (Continued via UIE Brain Sparks, Jared Spool)    [Usability Resources]

Assigning Weights - Usability, User Interface Design

Assigning Weights

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