WAMMI stands for Website Analysis and MeasureMent Inventory and is based around an online questionnaire that visitors to your site fill out.
The WAMMI web analytics service revolves around a 20-statement questionnaire and a unique international data base. An electronic report is generated automatically by our server at the end of the evaluation period.
The questionnaire measures user-satisfaction by asking users to compare their expectations against what they actually find on the website. By asking a number additional questions, detailed information of the kinds of visitor to your site and why they visit it are obtained and analysed.
The unique international "reference database" is made up of over 200 site evaluations from around world. The database has also been partitioned for different site types, such as transactional sites and B2B sites.
Where other questionnaires might give you a value for how users rated your site, WAMMI compares user-satisfaction for the site being evaluated with values from the reference database. This lets compare your site against others and see if you scored a good or bad result.
WAMMI is scientific web analytics service, iteratively developed using techniques from the science of Psychometrics. It has been scientifically proven and has a reliability data rating of between 0.90 and 0.93.
How WAMMI works
We configure your evaluation on our WAMMI server and providing you with a URL to connect to.
This URL is then placed as a link on a prominent place on your website (usually the homepage). To maintain discretion and avoid annoying your users, we do not advocate using pop-ups or something that refuses to go away until it has been completed.
Site visitors are instead encouraged to complete the questionnaire and submit their responses. The whole process takes only a few minutes, and response rates are high (10-20%). The results are checked and saved in the database on the WAMMI server. Users are then returned to the originating site.
Once enough users have responded (somewhere between 40 and 200 users is good: smaller sample sizes are quite possible although perhaps more difficult to generalise from) the data is run through an automatic scoring and report generation program. You will get an electronic WAMMI report within three days of the end of the evaluation.
What does a WAMMI report contain?
The most important part of the WAMMI report is the profile your website gets. This is measured in terms of: Attractiveness, Controllability, Efficiency, Helpfulness and Learnability. Your site is also given an overall global score.
There are five main parts to a WAMMI report, they are:
An overall usability score for how well users rate your site.
The WAMMI graphical profile of the website under the headings: Attractiveness, Control, Efficiency, Helpfulness, and Learnability. An average score is 50 and a perfect score is 100.
A detailed question-by-question analysis of how your visitors rated your site, giving you more information about which aspects of your website need improving.
Cross-tabulations of the WAMMI profile for the additional fixed questions you asked.
Responses to free-text questions where the visitors can tell you about things that are not specifically asked for by the WAMMI questions.
Available in most European Languages
WAMMI is available in a wide range of languages. A strict process of "back translation" and checking with native speakers of the target language is used to ensure that the meaning is kept close to the original.
The current version 2.5 of WAMMI is available in the following languages: Danish, Dutch, English, Finnish, French, German, Italian, Norwegian, Polish, Portuguese (European), Spanish and Swedish.
We are continuously developing WAMMI into new languages and we always need test sites to improve and extend our service.