set of questions. The output format of the QUIS data was also a source of frustration. The original format made analysis confusing and error-prone. QUIS Version 5.5 stores data in a format that could be easily imported into most popular spreadsheet and statistical analysis applications. Overall, the most significant change to the QUIS in Version 5.5 is improved flexibility. Prior versions required experimenters to use all questions in all areas despite how most often, only a sub-set of the 80 questions was actually applicable to the interface under evaluation. QUIS Version 5.5 allowed experimenters to select subsets of the QUIS questions to display. Overall, this saved subjects and experimenters time and effort. Version 5.5 - Development of the Web Based QUIS Standard HTML forms were used to let users interact with the QUIS Version 5.5. The online version's style is very similar to the paper version of the questionnaire. The online version displayed multiple questions per page and comment areas at the end of each section. In order to ensure that users considered each question, a response was required for each question (users were able to answer "Not Applicable"). Client-side JavaScript was used to both validate and format the user's responses. The data for each section of the QUIS was time stamped and recorded on the client computer. At the end of the questionnaire the data from all sections of the QUIS were gathered together and send as a single piece back to the server where the QUIS was deployed. This method of data collection ensures that only completed questionnaires were entered, and prevents concurrency issues between users. Version 5.5 Paper vs. Online Study This study compared responses from paper and on-line formats of the QUIS Veresion 5.5. The majority of studies were interested in assessing equivalence between computerized and paper forms of tests. Overall, the results have not indicated significant differences. Twenty subjects evaluated WordPerfect© using both the paper and online formats of the QUIS Version 5.5. Each administration of the QUIS was preceded by a practice session to refamiliarize the subject with the interface. As the researchers expected, the format of the questionnaire did not affect users' ratings. However, it was of note that subjects using the online format wrote more in the comment sections than those who used the paper format. Also, the comments made by subjects using the online format provided better feedback in terms of