1 - The end-user application: which is supposed to provide a certain service for both
patient and physician.
2 - The data sources (sensors and patient’s records): that provides a continuous
stream of contextual data and historical data about the patient.
3 - The rules base: which presents the knowledge base in our system (Fig. 1)
4.2 The Adaptation Engine and Monitoring Units
The adaptation engine consists of a central adaptation unit and multiple sub adaptation
units. Each subunit is responsible for monitoring and managing changes for a specific
category tuple (data, rules, services).
The system variables will be saved in a shared memory called the global state,
which is a composition of sub-states. Each sub-state is considered as a container for
saving category-specific data and it will be updated and managed by the adaptation
subunit that is responsible for monitoring the same category. We will divide all our sets
of data, rules, and services into three categories (Table 2):
Fig. 1. Architecture for COPD context-aware system
Context-Aware Healthcare Adaptation Model for COPD Diseases
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