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Activity-Centered Domain Characterization for Problem-Driven Scientific Visualization.

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    This study introduces an activity-centered design model for problem-driven visualization applications. It enhances requirements engineering by prioritizing user activities and workflows for better visualization design.

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    Area of Science:

    • Information Visualization
    • Human-Computer Interaction
    • Software Engineering

    Background:

    • Existing visualization design models lack clear guidance for domain characterization.
    • Current frameworks often overlook the explicit link between requirements engineering and the abstraction/evaluation stages.
    • Human-centered design (HCD) is a prevalent paradigm, but can be enhanced for task-specific applications.

    Purpose of the Study:

    • To present a novel framework and end-to-end model for requirements engineering in problem-driven visualization design.
    • To enhance existing visualization design models by incorporating an activity-centered design paradigm.
    • To provide a practical roadmap for the domain characterization step in visualization design.

    Main Methods:

    • Developed an activity-centered design (ACD) model, an enhancement of HCD, focusing on user tasks and activities.
    • Integrated functional specifications from software engineering into the visualization design process.
    • Partitioned requirements into activity-related capabilities and nonfunctional constraints.
    • Incorporated user workflows explicitly into the requirements engineering process.

    Main Results:

    • The ACD model assigns value to visualizations based on user activities and prioritizes user tasks over user data.
    • The model explicitly integrates user workflows and functional specifications into visualization design.
    • Quantitative evaluation using interdisciplinary projects validated the merits of the ACD model.
    • The framework provides a practical roadmap for domain characterization in problem-driven data visualization.

    Conclusions:

    • The proposed activity-centered model offers a structured approach to requirements engineering for problem-driven visualization.
    • This model addresses limitations in existing design frameworks by focusing on user activities and workflows.
    • Implementing this model can mitigate common pitfalls in the visualization design process.
    • The ACD model facilitates effective domain characterization, leading to improved visualization application design.