Gregor Scheithauer

Describing Services for Service Ecosystems

Service ecosystems are electronic market places and emerge as a result of the shift toward service economies. The aim of service ecosystems is to trade services over the internet. There are still obstacles that impede this new form of market places. Two of these challenges are addressed in this paper: (1) identification of appropriate service properties to specify service descriptions, and (2) a need of a clear classification for service description notations. Therefore, service properties and their relationship are introduced and an adaption for the Zachman Framework is presented to classify service description notations depending on the relative perspective.

Integrated Service Engineering workbench: service engineering for digital ecosystems

The evolution of service–oriented architectures towards digital ecosystems comprehends a number of challenges. One challenge is to develop services in a dynamic environment with high uncertainties and in collaboration with other companies. Another challenge lies in how to describe services sufficiently for trading them in digital ecosystems. This paper explores requirements of service engineering and description, and presents the ISE Framework and Workbench with its architecture and its functionality. Furthermore, this paper introduces a novel language for describing business services along with SLA management. This work concludes with a discussion about lessons learned during the development of the ISE Workbench.

Challenges of business service monitoring in the internet of services

The most industrialized countries have entered an era where their prosperity is largely created through a service economy. There is a transition from a manufacturing based economy to a service based economy. In the Internet of Services (IoS) vision services are seen as tradable goods. Business services are a major asset in this context. Since they are inherently different from e.g. web services, there is a need for a specialized monitoring approach. In this paper we describe the differences between e-services and business services, present an approach to describe business services, and discuss challenges regarding their monitoring requirements.

Analysis and Documentation of Knowledge-Intensive Processes

Business Process Management is a prevailing topic that addresses value-added activities in a company. Processes are modeled, realized, executed, and continuously improved. While this approach proves itself appropriate for routine work, it is not applicable for knowledge-intensive processes. Adaptive Case Management (ACM) defines this as knowledge work that is not or is rarely repeated, unable to be foreseen, occurs spontaneously, and depends on context. This paper pinpoints the differences between routine and knowledge work, and introduces ACM as a concept.

Modern Software Engineering Concepts and Practices: Advanced Approaches

The Internet of services introduces new requirements for service engineering in terms of addressing both business and technical perspectives. The inherent complexity of the new wave of services that is emerging requires new approaches for an effective and efficient service design. In this chapter a novel service engineering framework is introduced: the Integrated Service Engineering (ISE) framework. With its ISE workbench, it can address the emerging requirements of Internet of services. The chapter presents the foundations on how the service engineering process can be conducted by applying the separation of concerns to model different service dimensions within various layers of abstraction. Additionally, three novel extensions are presented to the aforementioned ISE workbench in order to enrich the capabilities of the service modeling process.

Requirements Engineering for SOA Services with BPMN 2.0 – From Analysis to Specification

This paper presents experiences in requirements engineering analysis, service identification, and service specification that were gained during a service development project in a public government organization. These experiences resulted in a method comprising techniques relying on a combination of BPMN 2.0 and UML. This method shows that using a combination of these notations and model generation of IT artifacts leads to fewer documents for different stakeholders, alignment of service specifications to original requirements, and semantic unambiguousness for service specifications.

Business modeling for service engineering: a case study in the IT outsourcing domain

Service engineering for both, service-oriented architectures and evolving service market places in the Internet, is still a challenge due to dynamic environments, high uncertainties, and increasing coopetition of market participants. Against this context, this paper introduces the Integrated Service Engineering Framework, presents a conducted case study in the IT outsourcing domain, and discusses the frameworks performance. Additionally, it reviews work related to business modeling. The case study shows that the ISE Framework is particularly strong in process and data modeling and their derivation from one perspective into the other.

Integrated service engineering workbench: service engineering for digital ecosystems

The evolution of service-oriented architectures towards digital ecosystems comprehends a number of challenges. According to Papazoglou et al., one challenge is to develop services in a dynamic environment with high uncertainties, and in collaboration with other companies. The Integrated Service Engineering (ISE) Workbench is a step in this direction in that it supports a model-driven approach and different stakeholders. This paper briefly introduces the ISE Framework, presents the ISE Workbench and its functionality, and proposes a demonstration of a conducted case study in the IT outsourcing domain.

Service value properties for service ecosystems: a reference model and a modeling guideline

With the rise of service-oriented computing and web service ecosystems, services and their electronic descriptions become crucial to foster significant value propositions toward potential service consumers. While there exist ample technical specifications to describe web services, conceptual approaches are rare. On top of this, an alignment between business models and information technology is lacking. This paper is a step toward this direction in that it offers a reference model to classify service value descriptions depending on their purpose, presents a generic model for service properties, proposes two meta models for conceptual modeling, and finally introduces a modeling guideline.