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I am writing a report about metrics that quantify the impact of design changes. If you have data you are willing to share, please email Shuli Gilutz at shuli@nngroup.com
We need:
> screenshot of the "before" design
> screenshot of "after"
> why the change was made
> the before vs. after numbers
Any type of user interface is of interest: websites, intranets, mobile devices, traditional software, consumer electronics, etc. Also, the design changes may refer to a complete redesign of the total UI or it could just be a single feature, screen, or design element that was changed.
Measures of interest include anything that measures how the use changed. Could be an improvement, but negative results would be just as interesting.
Sample metrics:
> success rate (users' ability to perform tasks)
> conversion rate
> average "sales basket" for e-commerce
> training time to learn a feature or system
> sign-up rate for newsletters or other desired action
> time on task; other productivity measures
> number of times a feature was used
> calls to help desks or tech support
> learning or comprehension scores
> other usage or impact metrics, including new ones you have invented yourself
I can keep your contribution totally anonymous and purely report your numbers as statistics that don't include any indication of what company or design they refer to. Of course, we would prefer to give you full credit if you are willing to be named. Also, if you send us screenshots, please indicate whether we should treat the screens as confidential info or whether you will allow us to publish the images. All contributors will obviously get a free copy of the report.
Please send contributions to Shuli Gilutz (shuli@nngroup.com) who is the member of my team responsible for collecting the data. She can also answer any questions you may have about this project.
I am looking for a few of the world's best graduate students in usability/HCI to assist with research projects. Positions are available both for part-time work during the school year and for full-time work during the summer.
Requirements:
> top 2% of the population in brainpower
> extensive experience running user tests
> great writer
Location: anywhere in the world. Projects will mainly be conducted through phone and the Internet.
We also want students who are native speakers of another language than English and interested in running a study in their home country. For such candidates, we can accept less than perfection in written English, even though reports must still be written in English.
Please send resume and writing samples to Luice Hwang: hwang@nngroup.com