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Scenario-Based Programming, Usability-Oriented Perception

Scenario-Based Programming, Usability-Oriented Perception Scenario-Based Programming, Usability-Oriented Perception GIORA ALEXANDRON, MICHAL ARMONI, MICHAL GORDON, and DAVID HAREL, Weizmann Institute of Science In this article, we discuss the possible connection between the programming language and the paradigm behind it, and programmers' tendency to adopt an external or internal perspective of the system they develop. Based on a qualitative analysis, we found that when working with the visual, interobject language of live sequence charts (LSC), programmers tend to adopt an external and usability-oriented view of the system, whereas when working with an intraobject language, they tend to adopt an internal and implementationoriented viewpoint. This is explained by first discussing the possible effect of the programming paradigm on programmers' perception and then offering a more comprehensive explanation. The latter is based on a cognitive model of programming with LSC, which is an interpretation and a projection of the model suggested by Adelson and Soloway [1985] onto LSC and scenario-based programming, the new paradigm on which LSC is based. Our model suggests that LSC fosters a kind of programming that enables iterative refinement of the artifact with fewer entries into the solution domain. Thus, the programmer can make less context switching between the solution domain and http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png ACM Transactions on Computing Education (TOCE) Association for Computing Machinery

Scenario-Based Programming, Usability-Oriented Perception

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References (45)

Publisher
Association for Computing Machinery
Copyright
Copyright © 2014 by ACM Inc.
ISSN
1946-6226
DOI
10.1145/2648814
Publisher site
See Article on Publisher Site

Abstract

Scenario-Based Programming, Usability-Oriented Perception GIORA ALEXANDRON, MICHAL ARMONI, MICHAL GORDON, and DAVID HAREL, Weizmann Institute of Science In this article, we discuss the possible connection between the programming language and the paradigm behind it, and programmers' tendency to adopt an external or internal perspective of the system they develop. Based on a qualitative analysis, we found that when working with the visual, interobject language of live sequence charts (LSC), programmers tend to adopt an external and usability-oriented view of the system, whereas when working with an intraobject language, they tend to adopt an internal and implementationoriented viewpoint. This is explained by first discussing the possible effect of the programming paradigm on programmers' perception and then offering a more comprehensive explanation. The latter is based on a cognitive model of programming with LSC, which is an interpretation and a projection of the model suggested by Adelson and Soloway [1985] onto LSC and scenario-based programming, the new paradigm on which LSC is based. Our model suggests that LSC fosters a kind of programming that enables iterative refinement of the artifact with fewer entries into the solution domain. Thus, the programmer can make less context switching between the solution domain and

Journal

ACM Transactions on Computing Education (TOCE) – Association for Computing Machinery

Published: Nov 3, 2014

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