System Support for Managing Invalid Bindings

TL;DR

This paper introduces PCRA, a system that manages invalid bindings in context-aware applications, reducing development complexity by handling failures transparently and improving reconfiguration robustness.

Contribution

The paper presents a novel system, PCRA, for managing invalid bindings during reconfiguration in context-aware applications, which was not addressed in prior work.

Findings

PCRA effectively handles invalid bindings during runtime.

The approach reduces development effort for adaptive applications.

Performance evaluation shows PCRA improves system robustness.

Abstract

Context-aware adaptation is a central aspect of pervasive computing applications, enabling them to adapt and perform tasks based on contextual information. One of the aspects of context-aware adaptation is reconfiguration in which bindings are created between application component and remote services in order to realize new behaviour in response to contextual information. Various research efforts provide reconfiguration support and allow the development of adaptive context-aware applications from high-level specifications, but don't consider failure conditions that might arise during execution of such applications, making bindings between application and remote services invalid. To this end, we propose and implement our design approach to reconfiguration to manage invalid bindings. The development and modification of adaptive context-aware applications is a complex task, and an issue of an invalidity of bindings further complicates development efforts. To reduce the development efforts, our approach provides an application-transparent solution where the issue of the invalidity of bindings is handled by our system, Policy-Based Contextual Reconfiguration and Adaptation (PCRA), not by an application developer. In this paper, we present and describe our approach to managing invalid bindings and compare it with other approaches to this problem. We also provide performance evaluation of our approach.