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Are models better read on paper or on screen? A comparative study.

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Viewing software models on screen is faster and leads to fewer errors compared to reading printed versions. This study investigated cognitive effectiveness for software model comprehension across different mediums.

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Area of Science:

  • Software Engineering
  • Human-Computer Interaction
  • Cognitive Science

Background:

  • Software modeling is crucial for developing complex software systems, aiding activities like code generation.
  • Effective communication and collaboration are key goals of software modeling.
  • The medium used for presenting software models (paper vs. screen) may impact comprehension.

Purpose of the Study:

  • To investigate the cognitive effectiveness of reading software models on paper versus on a computer screen.
  • To determine if screen viewing or paper printing offers a better experience for understanding software models.

Main Methods:

  • An experiment was conducted with 74 software engineering students.
  • Participants were tasked with reading software models presented on both paper and computer screens.
  • Cognitive effectiveness was measured by reading speed and error rates.

Main Results:

  • Displaying software models on a computer screen resulted in significantly quicker reading times.
  • On-screen viewing of software models was associated with a lower incidence of reading errors.
  • The study provides strong evidence for the benefits of screen-based model interaction.

Conclusions:

  • Computer screens offer a more cognitively effective medium for reading software models compared to paper.
  • Optimizing the display medium can enhance comprehension and reduce errors in software development workflows.
  • Future research could explore other factors influencing model comprehension across different media.