Design by contract is a well-established paradigm in software engineering. Bertrand Meyer first introduced the rigorous distinction between the responsibilities of service provider and service consumer for fine grain software artifacts (classes). This paper considers service contracts in the context of service-oriented architecture for complex enterprise information infrastructures. Identifying...

Over the past years, Service-oriented Architecture (SOA) Systems have been recognized more and more as a serious alternative to common monolithic systems for Enterprise Architectures (EA). An SOA provides a flexible means of effectively mapping business processes to IT processes. However, large IT systems require consistent leadership – IT Governance. For SOAs, governance faces new challenges. ...

Abstract: The SOA Innovation Lab presents a holistic approach for the development of a service-oriented enterprise architecture with custom and standard software packages. Starting point is the construction and analysis of company domain maps with respect to characteristics of SOA and standard software. After assessing the SOA ability of standard software packages within an architecture maturit...

As a matter of fact, SOA-based systems have a huge internal complexity due to plenty of services. On the one hand, this complexity enables and strongly supports the flexible alignment of the enterprise architecture with business processes. On the other hand, it requires a special management and control framework – provided by SOA Governance. For IT Governance, many accepted approaches exist. In...

Enterprise Architecture (EA) has undergone many changes since the IT has found its way into the world of enterprises. The introduction of Service-Oriented Architecture (SOA) is such a change with major consequences. The introduction of an SOA increases the flexibility and thus the productivity of an enterprise architecture, but unfortunately also its complexity. This makes the transformation of...

Service-oriented Computing (SOC) is known as the leading paradigm for the creation of agile and flexible enterprise IT infrastructures. The implementation of enterprise-wide Service-oriented Architectures (SOA) is a complex task. In most cases, more evolutionary approaches are used to deal with the arising complexity. However most of the design methodologies and implementation strategies focus ...

C. H. Crawford G. P. Bate L. Cherbakov K. Holley C. Tsocanos The success of an on demand e-business requires that business process, application, and information technology (IT) infrastructure integration merge into a comprehensive and cohesive architecture, where business process transformation drives serviceoriented development and on demand enterprise computing. This enabling architecture is ...

With the emergence of Web Services application vendors and organizations with heterogeneous software architectures have started to move towards Service-Oriented Architectures (SOAs). In a SOA, software functionalities are represented as discoverable services that are accessed through a network. SOA is a promising approach for Enterprise Application Integration problems. As computing becomes ubi...

This paper presents an architectural model that enables the convergence of the interoperability of Enterprise Architecture (EA), Service Oriented Architecture (SOA) and Cloud Services. As per the reviewed literature by the authors, there is a lack of research in this space of cloud computing. Hence the authors' research developed an innovative solution to provide a ‘plug and play’ architectural...