ABSTRACT
Carlos Parra, Xavier Blan , Lauren e Du hien, Ni olas Pessemier,
Rafael Leaño, Chantal Ta onet, and Zakia Kazi-Aoul
Abstract As any software, Web Servi es have to fa e various exe ution environments. We then talk of ontext-aware Web Servi es. Moreover, Web
Servi es ould also be used in mobile environments. For su h environments,
it is ne essary to have several produ ts (e.g., dierent implementations of the
same servi e), whi h may be deployed on various terminals. Furthermore,
mobility involves the ability to dynami ally hange the systems fun tions at
runtime in a ordan e with the environment variations. A Software Produ t
Line (SPL) paradigm may be helpful to deal with the produ tion of su h a
family of produ ts. In this hapter, we introdu e CAPu ine, a Context-Aware
Dynami Servi e-Oriented Produ t Line for the produ tion and exe ution of
ontext-aware Web servi es. CAPu ine proposes to express Web-Servi e vari-
ability through feature-diagrams and ontext-awareness models. CAPu ine
manages ontext-awareness (1) initially to derivate produ ts using a Model
Driven Engineering pro ess and (2) with an iterative pro ess to modify at run-
time the produ t stru ture and behavior due to ontext hanges using the SCA
platform and the COSMOS ontext management framework through. CA-
PU ine presents the whole pro ess, whi h in ludes ontext-aware Web servi e
spe i ation, ontext-aware platform ode generation and ontext-awareness
iterative loop. The whole pro ess is demonstrated through a mobile-ommer e
s enario.
