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The field of enterprise architectures lacks architecture patterns that would support analysis of a given enterprise architecture, comparison of different enterprise architecture solutions and provide guidelines for development of a target enterprise architecture based on the analysis of existing enterprise architecture. In this paper, we focus on business process support analysis using information derived from enterprise architecture description. We give a systematic overview of important aspects. We establish and formally define foundational enterprise architecture patterns for business process support analysis. They are implementation independent and enable more efficient qualitative architecture analysis of business process support, which is the basis for achieving more optimal business operation. We have defined the patterns using the standard enterprise architecture language - ArchiMate. They are formalized in a way that enables their implementation in enterprise architecture tools. This is an important characteristic that allows for efficient work by automatic detection of different, more or less suitable, architecture structures. We have derived the patterns based on real-world enterprise architecture descriptions and have used and verified them in enterprise architecture analysis and planning projects for four large organizations. The enterprise architecture analysis patterns address an important research issue in the field of enterprise architectures that has so far not been systematically researched.

Versioning is an important aspect of web service development, which has not been adequately addressed so far. In this article, we propose extensions to WSDL and UDDI to support versioning of web service interfaces at development-time and run-time. We address service-level and operation-level versioning, service endpoint mapping, and version sequencing. We also propose annotation extensions for developing versioned web services in Java. We have tested the proposed solution for versioning in two real-world environments and identified considerable improvements in service development and maintenance efficiency, improved service reuse, and simplified governance.

This article proposes specific extensions for WS-BPEL (Business Process Execution Language) to support versioning of processes and partner links. It introduces new activities and extends existing activities, including partner links, invoke, receive, import, and onmessage activities. It proposes version-related extensions to variables and introduces version handlers. The proposed extensions represent a complete solution for process-level and scope-level versioning at development, deployment, and run-time. It also provides means to version applications that consist of several BPEL processes, and to put temporal constraints on versions. The proposed approach has been tested in real-world environment. It solves major challenges in BPEL versioning.