Towards a self-healing IoT event-based architecture: infusing self-optimized real-time data imputation and quality management to promote fault tolerance
Abstract
This thesis addresses a central reliability problem in event-driven IoT systems: pipelines may remain operational while silently losing evidential integrity as sensor events become missing or delayed. Such data-quality degradation propagates through windowed aggregation and complex event processing (CEP), undermining derived event products and the decisions that depend on them. The thesis argues that dependable event-driven IoT requires accountable continuity: sustaining real-time outputs under imperfect evidence while making the degree and consequences of degradation explicit rather than concealed. Grounded in a Design Science Research methodology, the thesis develops and evaluates an integrated self-healing approach spanning architectural design, quality-aware event transformation, and real-time repair. First, it proposes a self-healing, event-based architecture that treats event transformation as a first-class, composable concern and provides monitoring and orchestration hooks for q ...
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