Talk

Display-Based Problems in Spreadsheets: A Critical Incident and a Design Remedy

David G. Hendry  

 About the Author

  Keywords
Visual Programming   Spreadsheet   Interaction Style   Human Factors   Cognitive Dimensions   Display-Based Problem Solving   Programming By Demonstration  

 Abstract

A critical incident is reported where a discretionary user needed to partition the spreadsheet grid into an arithmetic series of blocks and apply a function to each, but was unable to devise a solution. The incident is first scrutinized to explicate the reasons for the failure. Then, a new method for progressional computation on tabular displays is described and reviewed for usability. The method increases the expressive power of cell referencing but also simplifies the notation. The spreadsheet is shown to be a surprisingly poor artefact for three classes of display-based problem.

 Document in PostScript (compressed, 46084 bytes)

DiaGen: A Generator for Diagram Editors Providing Direct Manipulation and Execution of Diagrams Formal Semantics of Visual Languages Using Spatial Reasoning Index of Talks Proceedings - 11th Intl. Symposium on Visual Languages