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Semantic Entity-Component State Management Techniques to Enhance Software Quality for Multimodal VR-Systems.

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    Summary

    This study introduces five semantics-based software techniques to decouple subsystems in complex systems like virtual reality (VR), augmented reality (AR), and mixed reality (MR) applications. These methods enhance software maintainability by addressing state access issues in patterns such as entity-component-system (ECS).

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    Area of Science:

    • Software Engineering
    • Human-Computer Interaction
    • Computer Graphics and Simulation

    Background:

    • Maintainability of software architectures is crucial, especially in complex systems like Virtual Reality (VR), Augmented Reality (AR), and Mixed Reality (MR).
    • These systems often feature tightly coupled input-, output-, and processing subsystems that manage real-time simulations, creating interdependencies that hinder software quality.
    • Existing patterns like entity-component-system (ECS) can have deficits regarding state access, necessitating improved decoupling strategies.

    Purpose of the Study:

    • To present five semantics-based software techniques designed to decouple subsystems and improve software architecture maintainability.
    • To extend the entity-component-system (ECS) pattern with these techniques to overcome limitations in state access.
    • To demonstrate the practical benefits of these techniques using a multimodal VR interface as a case study.

    Main Methods:

    • Introduction of five semantics-based techniques: Semantic grounding, code from semantics, grounded actions, semantic queries, and decoupling by semantics.
    • Application and extension of the entity-component-system (ECS) pattern using these novel semantic techniques.
    • Illustrative walk-through of a multimodal (speech and gesture) VR interface implementation to showcase technique benefits.

    Main Results:

    • The proposed semantics-based techniques effectively address the contradiction between system interdependencies and the need for software decoupling.
    • Extending the ECS pattern with these techniques improves state access management in complex, multi-subsystem architectures.
    • The VR interface use-case highlights the practical advantages and benefits of the implemented semantic techniques.

    Conclusions:

    • Semantics-based software techniques offer a viable solution for enhancing the maintainability of complex VR, AR, and MR systems.
    • Decoupling subsystems through semantics improves modularity, modifiability, and reusability in software architectures.
    • The study provides implementation insights, lessons learned, and performance considerations for applying these techniques.