Accession Number : ADA327040

Title :   Interactive Sketching for the Early Stages of User Interface Design.

Descriptive Note : Doctoral thesis,

Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF COMPUTER SCIENCE

Personal Author(s) : Landay, James A.

PDF Url : ADA327040

Report Date : 19 DEC 1996

Pagination or Media Count : 262

Abstract : Current interactive user interface construction tools are often more of a hindrance than a benefit during the early stages of interface design. These tools are hard to use and they encourage designers and evaluators to focus on the wrong issues, such as color, fonts, and alignment, at this early stage. Most designers prefer instead to sketch early interface ideas on paper. However, designing on paper also has many drawbacks. Paper-based designs are hard to edit and cannot easily be tested with users. This dissertation describes the design, implementation, and evaluation of an interactive sketching tool called SILK that overcomes these problems and combines many of the benefits of paper-based sketching with current electronic tools. SILK allows designers to quickly sketch an interface using an electronic pad and stylus. SILK preserves the important properties of pencil and paper: a rough drawing can be produced quickly and the medium is flexible. However, unlike a paper sketch, this electronic sketch is interactive and can easily be annotated and modified using editing gestures. SILK recognizes user interface widgets and other interface elements as they are drawn and gives the designer feedback so that these inferences can be changed. Recognized interface elements have built-in behaviors and thus these elements can be exercised in their sketchy state.

Descriptors :   *COMPUTER AIDED DESIGN, *INTERACTIVE GRAPHICS, *GRAPHICAL USER INTERFACE, DATA MANAGEMENT, INFORMATION TRANSFER, COMPUTER COMMUNICATIONS, THESES, COMPUTER GRAPHICS, DESIGN CRITERIA.

Subject Categories : Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE