|The paper presents the concept and demonstrator of ”SAVE – SAfety of elderly people and Vicinity Ensuring”, an integrated approach of personal and residential security. This AAL (Active Assisted Living) system aims to support elderly end-users staying in their familiar home and surroundings for as long as possible, being safely and permanently in contact with their caregivers. The top-down Universal Modeling Language (UML) service orientation enabled a unified co-design of both human and machine communications. Furthermore, the present concept includes an integrated subscription mechanism for people and devices, in a multi-tier user structure and a central-local distributed processing (Cloud-Edge). There are presented the end-user perspective, selection and involvement (in pilot prototyping of the SAVE demonstrator), considering cognitive age-related issues, oriented on usability and on the functional specifications of interfacing via web-apps (independent of the mobile platforms operating system). Location Based Services (LBS) manage data from the Geographical Information Systems (GIS) in a unified modern way, based on LISP – Location - (from) Identity Separation Protocol. These services of ”orientation” – localization, real-time tracking – are integrated with another aspect of ”restoring the referential” (both personal and communitarian): (re-) planning service, improving alert information in case of emergency, bilateral push-pull of security notifications. Restoring the end-users well-being takes benefit of eHealth and actigraphy services. The other approach, bottom-up, is based on micro-services software/netware implementation, modern smartwatches/smartphones and wearable devices, leveraging their programmability and multi-modal and multi-range (near-field or cellular) communications|
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