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VL
2002
IEEE
105views Visual Languages» more  VL 2002»
13 years 9 months ago
A Visual Framework for Modelling with Heterogeneous Notations
There is a range of modelling notations, both textual and diagrammatic, whose semantics are based on first-order predicate logic. This paper presents a visual framework for organ...
Jean Flower, John Howse, John Taylor, Stuart Kent
VL
2002
IEEE
118views Visual Languages» more  VL 2002»
13 years 9 months ago
Novice Comprehension of Programs Using Task-Specific and Non-Task-Specific Constructs
This study examines the comprehension and modification by novices of programs written with taskspecific and non-task-specific constructs. Teachers who write programs for use in th...
Alec Engebretson, Susan Wiedenbeck
VL
2002
IEEE
155views Visual Languages» more  VL 2002»
13 years 9 months ago
Virtual Reality Interaction: The Characteristic Pattern Approach
We merge the Pictorial Computing Laboratory (PCL) approach to WIMP interaction with the Interaction Locus approach to structuring visual spaces as a step toward the definition of ...
Augusto Celentano, Daniela Fogli, Piero Mussio, Fa...
VL
2002
IEEE
104views Visual Languages» more  VL 2002»
13 years 9 months ago
First Steps in Programming: A Rationale for Attention Investment Models
Research into the cognitive aspects of programming originated in the study of professional programmers (whether experts or students). Even “end-user” programmers in previous s...
Alan F. Blackwell
VL
2002
IEEE
107views Visual Languages» more  VL 2002»
13 years 9 months ago
Reasoning about Many-to-Many Requirement Relationships in Spreadsheets
To help improve the reliability of spreadsheets created by end users, we are working to allow users to communicate the purpose and other underlying information about their spreads...
Laura Beckwith, Margaret M. Burnett, Curtis R. Coo...
VL
2002
IEEE
13 years 9 months ago
Visually Customizing Inference Rules About Apples and Oranges
We have been working on a unit system for end-user spreadsheets that is based on the concrete notion of units of the abstract concept of types. In previous work, we defined such ...
Margaret M. Burnett, Martin Erwig