Presently, the research on evolution of SOA solution is becoming more and more important in industry. It is necessary to extract a taxonomy framework for evolution of SOA solution because by using it, evolution of SOA-based systems can be analyzed and compared comprehensively and objectively. In this paper, a taxonomy framework for evolution of SOA solution is proposed that is illustrated from ...

Products increasingly turn into services. A prime example for this trend is the software industry. Specialized vendors leverage their core competencies in service value networks that offer joint complex services to customers. Such service value networks are in their infancy, yet both academics and practitioners lack approaches to formalize and economically analyze them. Our objective is to rewa...

Virtual communities for elderly healthcare have a potential to improve the community building process and to facilitate care services through support for activities, participation and information needs. This paper expounds on this idea by proposing a mobile virtual community (MVC) platform for elderly healthcare based on a services concept. The requirements for this platform are elicited using ...

The distinction between Objects and Components is well-known, but the distinction between Components and Services is much less clear. Therefore, we define the Product-ProcessQuality framework which intends to provide a clear understanding of the differences between Component-based software engineering (CBSE) and Service-Oriented software engineering (SOSE). Moreover, this framework handles the ...

A successful implementation of a service oriented architecture demands for a systematic identification of the information system functions to be implemented as services. In contrast to other approaches attempting to transfer each existing function in a company into a service, the method presented in this paper proposes a selective identification of services from a business point of view, based ...

UML state machines provide an operational view of the behavior of software systems. However, properties of the execution history of state machines cannot be expressed modularly. This often leads to model elements addressing the same concern scattered all over the machine. We present an initial approach to aspect-oriented state machines, which show considerably better modularity in designs of hi...

Resumen. Una arquitectura orientada a servicios o SOA (Service Oriented Architecture) es una arquitectura de software que proporciona servicios que corresponden a funcionalidad de negocio reutilizable a través de interfaces bien definidas. SOA surge ante la necesidad de poder emplear funcionalidad ya disponible en sistemas heterogéneos distribuidos. Para desarrollar una SOA, existen diversas op...

This paper proposes a web application-oriented modification of Model-View-Controller architecture, which allows generic implementations of the controller and the view. Proposed architecture is based on the conjunction of two techniques: remote procedure calls for HTML/HTTP based web applications in the controller part and automatic presentation of the model state information with several XSLT t...

View materialization is known to be a valuable technique for performance optimization in relational databases, and much work has been done addressing the problem of consistently maintaining relational views under update operations. However, little progress has been made thus far regarding the topic of view materialization in objectoriented databases (OODBs). In this paper, we demonstrate that t...

In this paper we investigate a class of problems permitting a good characterisation from the point of view of morphisms of oriented matroids. We prove several morphism-duality theorems for oriented matroids. These generalize LP-duality (in form of Farkas’ Lemma) and Minty’s Painting Lemma. Moreover, we characterize all morphism duality theorems, thus proving the essential unicity of Farkas’ Lem...