22,497 research outputs found
The Theoretical, Conceptual and Empirical Impact of the Service Economy: A Critical Review
services, classification schedules, output measurement, productivity, knowledge and innovation, global economy
Specification of vertical semantic consistency rules of UML class diagram refinement using logical approach
Unified Modelling Language (UML) is the most popular modelling language use for
software design in software development industries with a class diagram being the
most frequently use diagram. Despite the popularity of UML, it is being affected by
inconsistency problems of its diagrams at the same or different abstraction levels.
Inconsistency in UML is mostly caused by existence of various views on the same
system and sometimes leads to potentially conflicting system specifications. In
general, syntactic consistency can be automatically checked and therefore is
supported by current UML Computer-aided Software Engineering (CASE) tools.
Semantic consistency problems, unlike syntactic consistency problems, there exists
no specific method for specifying semantic consistency rules and constraints.
Therefore, this research has specified twenty-four abstraction rules of classâs relation
semantic among any three related classes of a refined class diagram to semantically
equivalent relations of two of the classes using a logical approach. This research has
also formalized three vertical semantic consistency rules of a class diagram
refinement identified by previous researchers using a logical approach and a set of
formalized abstraction rules. The results were successfully evaluated using hotel
management system and passenger list system case studies and were found to be
reliable and efficient
Workflow Management Systems and ERP Systems: Differences, Commonalities, and Applications
Two important classes of information systems, Workflow Management Systems(WfMSs) and Enterprise Resource Planning (ERP) systems, have been used to support e-business process redesign, integration, and management. While both technologies can help with business process automation, data transfer, and information sharing, the technological approach and features of solutions provided by WfMS and ERP are different. Currently, there is a lack of understanding of these two classes of information systems in the industry and academia, thus hindering their effective applications. In this paper, we present a comprehensive comparison between these two classes of systems. We discuss how the two types of systems can be used independently or together to develop intra- and inter-organizational application solutions. In particular, we also explore the roles of WfMS and ERP in the next generation of IT architecture based on web services. Our findings should help businesses make better decisions in the adoption of both WfMS and ERP in their e-business strategies
An Approach to Enable Interoperability in Electronic Tourism Markets
The exchange of semantically consistent service descriptions is an important issue for flexible integration facilities for electronic commerce. Currently there is a lack of semantic consistency on the Web, burdening arbitrary market relationships. Several standardization initiatives have addressed this issue before, but nonetheless, the setup and maintenance costs have been too high. Furthermore, too rigorous standardization is not appropriate. As tourism markets are particularly heterogeneous, there is a high demand for flexible, but consistent data schemes for distributed service descriptions on the Web. A mediated tourism market could solve the integration problem by providing global data schemes that are individually extendable. In this paper we propose an approach based on the Resource Description Framework (RDF) and eXtensible Markup Language (XML) Namespaces, which are promising technologies that could be used for addressing the interoperability issues, which remain, however, hard problems
Semantic discovery and reuse of business process patterns
Patterns currently play an important role in modern information systems (IS) development and their use has mainly been restricted to the design and implementation phases of the development lifecycle. Given the increasing significance of business modelling in IS development, patterns have the potential of providing a viable solution for promoting reusability of recurrent generalized models in the very early stages of development. As a statement of research-in-progress this paper focuses on business process patterns and proposes an initial methodological framework for the discovery and reuse of business process patterns within the IS development lifecycle. The framework borrows ideas from the domain engineering literature and proposes the use of semantics to drive both the discovery of patterns as well as their reuse
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