Cagdas Evren Gerede

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Business process (BP) modeling is a building block for design and management of business processes. Two fundamental aspects of BP modeling are: a formal framework that well integrates both control flow and data, and a set of tools to assist all phases of a BP life cycle. This paper is an initial attempt to address both aspects of BP modeling. We view our(More)
The e-services paradigm promises to enable rich, flexible, and dynamic inter-operation of highly distributed, heterogeneous network-enabled services. Among the challenges, a fundamental question concerns the design and analysis of composite e-services. This paper proposes techniques towards automated design of composite e-services. We consider the Roman(More)
In this paper, we describe SPiDeR, a peer-to-peer (P2P) based framework that supports a variety of Web service discovery operations. SPiDeR organizes the service providers into a structured P2P overlay and allows them to advertise and lookup services in a completely decentralized and dynamic manner. It supports three different kinds of search operations:(More)
SOA has influenced business process modeling and management. Recent business process models have elevated data representation to the same level as control flows, for example, the artifact-centric business process models allow the life cycle properties of artifacts (data objects) to be specified and analyzed. In this paper, we develop a specification(More)
Business artifacts are the core entities used by businesses to record information pertinent to their operations. Business operational models are representations of the processing of business artifacts. Traditional process modeling approaches focus on the actions taken to achieve a certain goal (verb-centric). Business artifact-centric modeling starts by(More)
The paradigm of automated e-service composition through the integration of existing services promises a fast and efficient development of new services in cooperative business environments. Although the "why" part of this paradigm is well understood, many key pieces are missing to utilize the available opportunities. Recently "e-service communities" where(More)
Automated Web Service Composition has gained a significant momentum in facilitating fast and efficient formation of business-to-business collaborations where an important objective is the utilization of existing services to respond to new business requirements in a timely manner. In this context, the service delegation problem can be formulated as follows:(More)
The MIDAS system that we have developed is an automated supply chain management system based on the service oriented architecture and Web services. MIDAS provides a loosely-coupled distributed environment that allows customers, manufacturers, and suppliers to cooperate over the Internet and World Wide Web. It aims to reduce inventory carrying costs and(More)
SOA provides a flexible framework tor better-integrated systems that meet business needs. However, the existing methods are not successful in helping business analysts to devise appropriate business services. Herein, a novel approach is presented to address service identification and thereby developing sound SOA. In contrast with conventional methodologies,(More)