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VL
2000
IEEE
13 years 8 months ago
Learning and Reuse of a Visual Programming Language
Five science teachers were observed during two selfstudy sessions where they learned to use Visual AgenTalk (VAT). In the first session they learned basic skills; in the second, t...
Mary Beth Rosson, Cheryl D. Seals
VL
2000
IEEE
158views Visual Languages» more  VL 2000»
13 years 8 months ago
A Common Framework for Input, Processing, and Output in a Rule-Based Visual Language
Isaac is a programing language for geometric reasoning intended for controlling mobile robots, currently under development at NMSU. Due to the application area, handling input and...
Joseph J. Pfeiffer Jr., Rick L. Vinyard Jr., Berna...
VL
2000
IEEE
140views Visual Languages» more  VL 2000»
13 years 8 months ago
Tabular and Textual Methods for Selecting Objects from a Group
The accurate formulation of boolean expressions is a notorious problem in programming languages and database query tools. This paper studies the ways that untrained users naturall...
John F. Pane, Brad A. Myers
VL
2000
IEEE
136views Visual Languages» more  VL 2000»
13 years 8 months ago
A Data-Flow Visual Approach to Symbolic Computing: Implementing a Production-Rule-Based Programming System through a General-Pur
The main aim of this paper is to investigate how the production-rule-based computational paradigm can be implemented through visual data-flow techniques. We propose a simple yet e...
Mauro Mosconi, Marco Porta
VL
2000
IEEE
120views Visual Languages» more  VL 2000»
13 years 8 months ago
Visualizing the Synchronization of Java-Threads with UML
Concurrent programming is a complex task, even with modern languages such as Java who provide languagebased support for multithreading and synchronization. In addition to typical ...
Katharina Mehner, Annika Wagner
VL
2000
IEEE
13 years 8 months ago
Using the Cognitive Walkthrough to Improve the Design of a Visual Programming Experiment
Thomas R. G. Green, Margaret M. Burnett, Andrew Je...
VL
2000
IEEE
130views Visual Languages» more  VL 2000»
13 years 8 months ago
SALSA and ALVIS: A Language and System for Constructing and Presenting Low Fidelity Algorithm Visualizations
Computer science educators have traditionally used algorithm visualization (AV) software to create graphical representations of algorithms that are later used as visual aids in le...
Christopher D. Hundhausen, Sarah A. Douglas
VL
2000
IEEE
115views Visual Languages» more  VL 2000»
13 years 8 months ago
SD2: A Sound and Complete Diagrammatic Reasoning System
SD2 is a system of Venn-type diagrams that can be used to reason diagrammatically about sets, their cardinalities and their relationships. They augment the systems of Venn-Peirce ...
John Howse, Fernando Molina, John Taylor
VL
2000
IEEE
148views Visual Languages» more  VL 2000»
13 years 8 months ago
Projections in Venn-Euler Diagrams
Venn diagrams and Euler circles have long been used to express constraints on sets and their relationships with other sets. However, these notations can get very cluttered when we...
Joseph Gil, John Howse, Stuart Kent, John Taylor
VL
2000
IEEE
118views Visual Languages» more  VL 2000»
13 years 8 months ago
Towards Generic Rule-Based Visual Programming
This paper outlines DIAPLAN, a visual rule-based programming language and environment that is based on the computational model of graph transformation. Thanks to its genericity, D...
Berthold Hoffmann, Mark Minas