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The Business Process Model and Notation 2.0 (BPMN) standard has been hailed as a major step in business process modeling and automation. Recently, it has also been accepted as an ISO standard. The expectation is that vendors of business process management systems (BPMS) will switch to the new standard and natively support its execution in process engines.This paper presents an analysis of the current...
Workflow Management Systems (WfMSs) are a type of middleware that enables the execution of automated business processes. Users rely on WfMSs to construct flexible and easily maintainable software systems. Significant effort has been invested into standardising languages for business processes execution, with standards such as the Web Services Business Process Execution Language 2.0 or the Business...
In Web Services-based SOAs, BPEL 2.0 is the choice for defining services by composing existing ones. BPEL-based services can be directly executed on BPEL engines. With the rise of the cloud, companies aim to outsource service hosting to cloud providers. To achieve economies of scale, a cloud provider must host such services with minimal resources and keep the services from different tenants isolated...
The Business Process Model and Notation 2.0 (BPMN) standard has been hailed as a major step in business process modeling and automation. Recently, it has also been accepted as an ISO standard. The expectation is that vendors of business process management systems (BPMS) will switch to the new standard and natively support its execution in process engines. This paper presents an analysis of the current...
Service-oriented systems are increasingly implemented in a process-based fashion. Multiple languages for building process-based systems are available today, but the Business Process Model and Notation (BPMN) is becoming ubiquitous. With BPMN 2.0 released in 2011, execution semantics were introduced, supporting the definition of executable processes. Nowadays, more and more process engines directly...
Today, process-aware systems are ubiquitous. They are built by leveraging process languages for both business and implementation perspectives. In the typical context of a Web Services-based Service-oriented Architecture, the obvious choice to implement service orchestrations is still the Business Process Execution Language (BPEL). For BPEL, a variety of open source and commercial engines have emerged...
In 2007, OASIS finalized their Business Process Execution Language 2.0 (BPEL) specification which defines an XML-based language for building orchestrations of Web Services. As the validation of BPEL processes against the official BPEL XML schema leaves room for a plethora of static errors, the specification contains 94 static analysis rules to cover all static errors. According to the specification,...
The selection of the best fitting process engine for a specific project requires the evaluation of engines according to various requirements. We focus on the non-functional requirement robustness, which is critical in production environments but hard to determine. Thus, we propose an evaluation framework to reveal important robustness criteria of process engines. In this work, we focus on message...
Today, a plethora of enterprise middleware solutions are available, leading to the problem of choosing the right tool for a specific use case. Automated tests can support the selection of such software by determining decision relevant metrics, like e.g., throughput or the degree of standard conformance. To avoid side effects between tests, test isolation, i.e., to provide fresh instances of the software...
Service-oriented software consists of middleware, such as application servers and runtime engines, into which service applications are deployed. This middleware is often complex and difficult to install. The deployment of services requires the crafting of deployment descriptors and packaging of applications. As a consequence, the installation of service-oriented software systems can be a daunting...
ebXML BPSS (ebBP) is well-suited to specify Business-to-Business (B2B) interactions as choreographies of so-called Business Transactions. Web Services and WS-BPEL as dedicated interface technologies then can be used to provide the implementation of such choreographies. Tracking and ensuring the progress of choreographies calls for monitoring facilities that require gathering information from log data...
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