ISAMadapt: abstractions and tools for designing general‐purpose pervasive applications

Abstract

The concept of pervasiveness provides the future of computing with an attractive perspective. However, software support for physical and logical mobility raises a set of new requirements and challenges for software production, creating demand for new types of applications, the so‐called pervasive applications, which express follow‐me semantics. The core of these challenges is a dynamic operating environment, which originates with the users' movement in different terminals and locations, and determines different execution contexts. For this envision to become a reality, developers must build applications that constantly adapt to a highly dynamic computing environment. Research works in pervasive computing have already addressed important issues, but they do not approach the problem of how to program general‐purpose pervasive systems. Pervasive applications are distributed, mobile, adaptive and consider context as a first‐order concept. To make the developers' task easier, we have introduced the software architecture called ISAM, which provides an integrated environment aimed at building pervasive applications composed of a development environment and an execution middleware. As part of our study within the ISAM project, we have been investigating how context‐awareness can be expressed at the programming language level with a basis on four main abstractions: context, adapters, adaptation commands, and adaptive behavior management policies. This paper introduces such abstractions, and presents some development and management tools anchored on an example application, which is under development. Copyright © 2006 John Wiley & Sons, Ltd.

Engineering context-aware systems and applications: A survey

“…ISAMadapt [182]: Provides an integrated environment aimed at building general-purpose pervasive applications. It works on the basis of four main abstractions: Context, adapter adaptation commands, and adaptive behaviour management policies.…”

Context-aware systems: A literature review and classification

“…Algorithm Agent Arcos and Plaza (2002), Hattori, Cho, Ohsuga, Isshiki, and Honiden (2004), Kao and Yuan (2005), Krause, Smailagic, and Siewiorek (2006) Context reasoning Anagnostopoulos, Ntarladimas, and Hadjiefthymiades (2007), Brunato and Battiti (2005), Castro and Munz (2000), Chetan, Ranganathan, and Campbell (2005), Drakatos, Pissinou, Douligeris, and Makki (2007), Ladd, Bekris, Rudys, Kavraki, and Wallach (2005), Niemegeers and Heemstra De Groot (2005), Ranganathan, Al-Muhtadi, and Campbell (2004), Sajal, Nirmalya, and Abhishek (2006), Samaan and Karmouch (2005), Satoh (2003), Smailagic and Kogan (2002), Weber, Sorkine, Lipman, and Gotsman (2007), Xiong and Hassan (2006) Service recommendation Byun and Cheverst (2004), Hatala, Wakkary, and Kalantari (2005), Kocaballı and KoçyigitGranular (2007), Kouadri and Younas (2007), Kwon and Kim (2004), Meeuwissen, Reinold, and LiemInferring (2007), Pertselakis, Ferles, Tsiolis, and Stafylopatis (2005), Soldatos, Stamatis, Azodolmolky, Pandis, and Polymenakos (2007), Syukur and Loke (2007), Yuan and Peng (2004) Development guideline Anhalt et al (2001), Augustin et al (2006), Avrahami, Gergle, Hudson, and Kiesler (2007), Bolchini et al (2007), Casas, Cuartielles, Marco, Gracia, and Falco (2007), Henricksena and Indulska (2006), Hong and Landay (2001), Julien, Payt...…”

PEHS – Arquitetura de um Sistema de Informação Pervasivo para Auxílio às Atividades Clínicas

“…Este foi modificado para permitir a Orientação a Atividades [14]. O Exehda possibilita às tarefas interrupção (tarefas podem ser interrompidas e retomadas posteriormente), contextualização (tarefas podem estar associadas a um contexto ou receber a associação dinamicamente), mobilidade e adaptação (tarefas devem migrar e se adaptar às diferentes características do ambiente de forma a acompanhar o usuário (semântica siga-me) [15]). Maiores detalhes da arquitetura estão disponíveis na referência [14].…”