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Implementation<br />

The tool is a Web-based application that presents a questionnaire form to the user where s/he can choose a Web browser<br />

and then fill <strong>in</strong> the answers to all the questions. When the user submits the form, a CGI script takes all the data and<br />

stores it <strong>in</strong> a file <strong>in</strong> such a way that later can generate the appropriate graphics.<br />

The structure of the software <strong>in</strong>cludes a home page with textual description of the guidel<strong>in</strong>es, scores, and an example. It<br />

also presents other l<strong>in</strong>ks to the Web sites of each browser to check for latest releases and other k<strong>in</strong>d of <strong>in</strong><strong>format</strong>ion.<br />

Once the user chooses a Web browser to evaluate, a script generates the guidel<strong>in</strong>es form on the fly. The user answers the<br />

questions and also enters some personal op<strong>in</strong>ions about certa<strong>in</strong> features. When the form is submitted, another script<br />

takes all the data and stores them <strong>in</strong> a logfile.<br />

Furthermore, if a user wants to know the results, there is a l<strong>in</strong>k to a page with different graphics show<strong>in</strong>g up-to-date<br />

data. For now, the graphics are basically histograms written <strong>in</strong> Java and the parameters for the applets are also generated<br />

on the fly [Gosl<strong>in</strong>g & McGilton 1995]. In a future, the idea is to have different queries to databases <strong>in</strong> order to generate<br />

customized graphics.<br />

The construction of new features was done us<strong>in</strong>g both aforementioned approaches. Delphi and VisualObliq were the<br />

ma<strong>in</strong> tools used <strong>in</strong> the first approach and Java was used for the second approach for a simple <strong>in</strong>terface.<br />

F<strong>in</strong>al Discussion<br />

We believe that the model <strong>in</strong>troduced is appropriated to perform distributed <strong>in</strong>terface evaluation. This task can be<br />

performed anywhere, anytime and only requires a Web browser. From the designer po<strong>in</strong>t of view, the <strong>in</strong>corporation of<br />

Java applets makes the feedback process much more <strong>in</strong>teractive. Users can test m<strong>in</strong>iapplets <strong>in</strong> order to analyze a special<br />

feature(e.g. a dialog box). Actually, users can add applets and have more <strong>in</strong>teraction with the design. Last, but not least,<br />

the pages with the guidel<strong>in</strong>es, results, user feedback, and applets act as a collective memory by keep<strong>in</strong>g track of the<br />

different stages <strong>in</strong> the design process.<br />

Acknowledgments<br />

This work was partially supported by the Chilean Science and Technology Fund (FONDECYT), Grant 1950584.<br />

References<br />

[Apple 1992] Apple Computer (1992). Mac<strong>in</strong>tosh User Interface Guidel<strong>in</strong>es. New York: Addison-Wesley.<br />

[Barsfeld 1994] Barsfeld, L.(1994). The user <strong>in</strong>terface, concepts and design. New York: Addison-Wesley.<br />

[Cooper 1995] Cooper, A. (1995). About face. Foster City, CA: IDG Books.<br />

[Fowler and Stanwick 1995] Fowler, S. & Stanwick, V.(1995). The GUI Style guide. Cambridge, Massachusetts:<br />

Academic Press, Inc.<br />

[Gosl<strong>in</strong>g and McGilton 1995] Gosl<strong>in</strong>g, J. & McGilton, H.(1995). The Java Language Environment. A White Paper. Sun<br />

Microsystems, Inc. Cupert<strong>in</strong>o, CA<br />

[Nielsen 1993] Nielsen, J.(1993). Usability eng<strong>in</strong>eer<strong>in</strong>g. Cambridge, Massachusetts: Academic Press, Inc.<br />

[Norman and Drapper 1988] Norman, D. & Drapper, S.(1988). User-centered system design. Hillsdale, NJ: Lawrence<br />

Erlbaum.<br />

[Norman 1988] Norman, D. (1988). The psychology of everyday th<strong>in</strong>gs. New York: Basic Books.

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