TUESDAY, SEPTEMBER 3

PAPERS: Program Comprehension [Tue 10:30 - 12:00] --- Session Chair: Marian Petre

First Steps in Programming: A Rationale for Attention Investment Models A. Blackwell Novice Comprehension of Programs Using Task-Specific and Non-Task-Specific Constructs A. Engebretson and S. Wiedenbeck Is There Any Difference in Novice Comprehension of a Small Program Written in the Event-Driven and Object-Oriented Styles? B. Khazaei and M. Jackson

TECH NOTES 1: End Users and Usability [Tue 1:30 - 3:00] --- Session Chair: Andy Schuerr

Applying Attention Investment to End-User Programming A. Blackwell and M. Burnett An Empirical Study of User Preference and Performance with UML Diagrams C. Britton, M. Kutar, S. Anthony, T. Barker, S. Beecham, and V. Wilkinson Quantifying Developer Experiences via Heuristic and Psychometric Evaluation R. Kline, A. Seffah, H. Javahery, M. Donayee, and J. Rilling An Empirical Analysis of Roles of Variables in Novice-Level Procedural Programs J. Sajaniemi A New Interface to Spreadsheet Programming: A Truly Seamless Fusion of Spreadsheet and Word Processing Paradigms J. Sajaniemi Making Abstract Specifications Concrete to End-Users: The Visual Workshop Hierarchy Strategy P. Carrara, D. Fogli, G. Fresta, and P. Mussio

TECH NOTES 2: Applications [Tue 1:30 - 3:00] --- Session Chair: Joseph J. Pfeiffer, Jr.

Virtual Reality Interaction: The Characteristic Pattern Approach A. Celentano, D. Fogli, P. Mussio, and F. Pittarello Dynamic Layout Management in a Multimedia Bulletin Board H. Kang, B. Shneiderman, and G. Wolff Supporting the Construction of Real World Interfaces D. McCrickard, D. Wrighton, and D. Bussert A Method for Providing Program Interoperability for End-Users R. Moten An Empirical Study of Web Personalization Assistants: Supporting End-Users in Web Information Systems K. Kim, J. Carroll, and M. Rosson Assertions in End-User Software Engineering: A Think-Aloud Study C. Wallace, C. Cook, J. Summet, and M. Burnett

TECH NOTES 3: Visual Languages [Tue 3:30 - 5:30] --- Session Chair: Jenny Tortora

Visual Scripting for Handheld Computers S. Armstrong, Y. Kollet, and T. Smedley A Visual Framework for Modeling with Heterogeneous Notations J. Flower, J. Howse, J. Taylor, and S. Kent Concrete Programming with Reactive Objects S. Gauvin and T. Smedley Portability and Reuse of Components for Spreadsheet Languages M. Montigel A Visual Query Language for Software Visualization S. Reiss An Interrogative Approach to Novice Programming A. Quinn A Data-flow Testing Methodology for a Dataflow Based Visual Programming Language M. Karam and T. Smedley

TECH NOTES 4: Design and Environments [Tue 3:30 - 5:30] --- Session Chair: Steve Tanimoto

Solving Design Problems in a Logic-Based Visual Design Environment O. Banyasad and P. Cox Defining Behaviors for Solids in a Visual Design Environment O. Banyasad and P. Cox W/AGE: The Windsor Attribute Grammar Programming Environment R. Frost The "Algorithms Studio" Project: Using Sketch-Based Visualization Technology to Construct and Discuss Visual Representations of Algorithms C. Hundhausen Mulspren: A MUltiple Language Simulation PRogramming ENvironment T. Wright and A. Cockburn Error Detection Support in a Cellular Modeling End-User Programming Environment M. Vass and P. Schoenhoff Toward a Unified Paradigm for Constructing and Understanding Robot Processes C. Hancock

WEDNESDAY, SEPTEMBER 4

PAPERS: Program Development [Wed 10:30 - 12:00] --- Session Chair: Susan Wiedenbeck

Flexible Software Process Enactment Support in the APSEE Model C. Reis, R. Reis, M. Abreu, H. Schlebbe, and D. Nunes Multi-User Collaborative Visual Program Development J. Campbell The Use of the GXL Approach for Supporting Visual Language Specification and Interchanging G. Costagliola, V. Deufemia, F. Ferrucci, and C. Gravino

PAPERS: Spreadsheets and Forms [Wed 1:30 - 3:00] --- Session Chair: Trevor Smedley

Visually Customizing Inference Rules about Apples and Oranges M. Burnett and M. Erwig Reasoning about Many-to-Many Requirement Relationships in Spreadsheets L. Beckwith, M. Burnett, and C. Cook A Data Mapping Specification Environment using a Concrete Business Form-Based Metaphor Y. Li, J. Grundy, R. Amor, and J. Hosking

PAPERS: Stagecast Creator [Wed 3:30 - 4:30] --- Session Chair: Eileen T. Kraemer

A Community Learns Design: Towards a Pattern Language for Novice Visual Programmers T. Lewis, M. Rosson, J. Carroll, and C. Seals Fun Learning Stagecast Creator: An Exercise in Minimalism and Collaboration C. Seals, M. Rosson, J. Carroll, T. Lewis, and L. Colson

THURSDAY, SEPTEMBER 5

PAPERS: Usability [Thu 10:30 - 12:00] --- Session Chair: Alan Blackwell

Towards Formal Measures of Usability for Visual Interactive Systems P. Bottoni, M. Costabile, S. Levialdi, and A. Piccinno Using HCI Techniques to Design a More Usable Programming System J. Pane, B. Myers, and L. Miller Coordination of Multiple External Representations during Java Program Debugging P. Romero, R. Lutz, R. Cox, and B. du Boulay

PAPERS: Visualization and Animation [Thu 1:30 - 3:00] --- Session Chair: John Hosking

MAVIS: A Multi-Level Algorithm Visualization System within a Collaborative Distance Learning Environment I. Koifman, I. Shimshoni, and A. Tal Interactive Visualization of Java Programs P. Gestwicki and B. Jayaraman Empirical Evidence that Algorithm Animation Promotes Understanding of Distributed Algorithms M. Tudoreanu, R. Wu, A. Hamilton-Taylor, and E. Kraemer

CLOSING KEYNOTE: Clayton Lewis, University of Colorado at Boulder [Thu 3:30 - 5:00]: "HCI: Where Are We Now, Where Might We Go From Here?" Session Chair: Stefano Levialdi