Title Page

Foreword

Frequency Distribution of Error Messages
David Pritchard
(University of Waterloo, Canada)

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An Evaluation of the DiaSuite Toolset by Professional Developers: Learning Cost and Usability
Milan Kabáč, Nic Volanschi, and Charles Consel
(INRIA, France; University of Bordeaux, France)

Aiding Programmers using Lightweight Integrated Code Visualization
Per Ola Kristensson and Chung Leung Lam
(University of Cambridge, UK)

Towards Moldable Development Tools
Andrei Chiş, Oscar Nierstrasz, and Tudor Gîrba
(University of Bern, Switzerland; tudorgirba.com, Switzerland)

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Understanding the Effects of Code Presentation
Jason T. Jacques and Per Ola Kristensson
(University of Cambridge, UK)

A User Study for Comparing the Programming Efficiency of Modifying Executable Multimodal Interaction Descriptions: A Domain-Specific Language versus Equivalent Event-Callback Code
Fredy Cuenca, Jan Van den Bergh, Kris Luyten, and Karin Coninx
(University of Hasselt, Belgium; Transnational University of Limburg, Belgium; iMinds, Belgium)

A Study on the Most Popular Questions about Concurrent Programming
Gustavo Pinto, Weslley Torres, and Fernando Castor
(Federal University of Pernambuco, Brazil)

Comparing Transitive to Non-transitive Object Immutability
Michael Coblenz, Joshua Sunshine, Brad A. Myers, Sam Weber, and Forrest Shull
(Carnegie Mellon University, USA; Software Engineering Institute, USA)

Is Functional Programming Better for Modularity?
Ismael Figueroa and Romain Robbes
(Pontificia Universidad Católica de Valparaíso, Chile; University of Chile, Chile)

Operators and Precedence in Programming Languages
Najwani Razali, James Noble, and Stuart Marshall
(Victoria University of Wellington, New Zealand)

Some Usability Hypotheses for Verification
David J. Pearce
(Victoria University of Wellington, New Zealand)

On the Need to Define Community Agreements for Controlled Experiments with Human Subjects: A Discussion Paper
Stefan Hanenberg and Andreas Stefik
(University of Duisburg-Essen, Germany; University of Nevada at Las Vegas, USA)