Secure Business Processes in Service-Oriented Architectures -- A Requirements Analysis

Author(s):  
Jens Muller ◽  
Jutta Mulle ◽  
S von Stackelberg ◽  
Klemens Bohm
Author(s):  
Neven Vrcek ◽  
Ivan Magdalenic

Many benefits from implementation of e-business solutions are related to network effects which means that there are many interconnected parties utilizing the same or compatible technologies. The large-scale adoption of e-business practices in public sectors and in small and medium enterprises (SMEs)-prevailing economic environments will be successful if appropriate support in the form of education, adequate legislative, directions, and open source applications is provided. This case study describes the adoption of e-business in public sectors and SMEs by using an integrated open source approach called e-modules. E-module is a model which has process properties, data properties, and requirements on technology. Therefore e-module presents a holistic framework for deployment of e-business solutions and such e-module structure mandates an approach which requires reengineering of business processes and adoption of strong standardization that solves interoperability issues. E-module is based on principles of service-oriented architectures with guidelines for introduction into business processes and integration with ERP systems. Such an open source approach enables the spreading of compatible software solutions across any given country, thus, increasing e-business adoption. This paper presents a methodology for defining and building e-modules.


2011 ◽  
pp. 926-957
Author(s):  
Jan Vom Brocke

Service-oriented architectures offer promising means to flexibly organize business processes. At the same time, new challenges for management arise in order to realize these potentials. Given the technological opportunities, these challenges essentially lie in choosing the right mix of services on the basis of an appropriate infrastructure supporting value adding activities. In order to support this management perspective, a focus on service-oriented business processes is suggested in this article. Hence, a shift from technical aspects of designing service-oriented information systems to economic aspects of using them according to business needs is drawn. For this purpose, findings on the evaluation of financial performance of service-oriented business processes are presented in this paper. The objective is to develop a measurement system for decision support on the con-figuration of a company’s service portfolio reflecting specific economic conditions relevant in a certain situation. Following a design science approach, general principles of a measurement system are worked out and structured in a comprehensive framework. Then, the application of a corresponding system is presented with a practical study. Finally, perspectives on the specification and implementation of the system are sketched.


Author(s):  
Olga Levina ◽  
Vladimir Stantchev

E-Business research and practice can be situated on following multiple levels: applications, technological issues, support and implementation (Ngai and Wat 2002). Here we consider technological components for realizing business processes and discuss their foundation architecture for technological enabling. The article provides an introduction to the terms, techniques and realization issues for eventdriven and service-oriented architectures. We begin with a definition of terms and propose a reference architecture for an event-driven service-oriented architecture (EDSOA). Possible applications in the area of E-Business and solution guidelines are considered in the second part of the article. Service-oriented Architectures (SOA) have gained momentum since their introduction in the last years. Seen as an approach to integrate heterogeneous applications within an enterprise architecture they are also used to design flexible and adaptable business processes. An SOA is designed as a distributed system architecture providing a good integration possibility of already existing application systems. Furthermore, SOA is mostly suitable for complex and large system landscapes.


Author(s):  
Gerhard Austaller

The chapter “Ubiquitous Services and Business Processes” discussed the benefits for real time enterprises of service oriented architectures (SOA) in terms of reusability and flexibility. Web services are one incarnation of SOA. This chapter gives a brief introduction to SOA. It discusses the attributes that define SOA, the roles of the participants in a service oriented environment. The essence of SOA is that clients use services offered by a service provider to get a task done. For the moment we simplify service to “a software component with network connection”. Services are offered with a description at wellknown “places” (also called registries, repositories), where clients choose services according to their needs. The chapter discusses several approaches to describe services and to look for them. Moreover, some well-known systems, and also current research, are discussed.


Author(s):  
Hamza Chehili ◽  
Lionel Seinturier ◽  
Mahmoud Boufaida

The adoption of the agile methods' principles has emerged as an effective way to develop service oriented architectures as it paves the way for a better reply to the changing needs of the environment and even the customer. However, these changes may also require the evolution of the development process itself. This paper presents an agile and service-oriented software development method that combines concepts from the Service-Oriented Computing (SOC) domain and the agile software engineering one. This method provides an iterative and incremental process to deliverer business processes, implemented as an assembly of components. This leads to a faster response to the change of needs by reconfiguring the assembly of components. The method is based on a framework that implements its phases as an assembly of components to allow a dynamic reconfiguration of it in case of a development process evolution. Finally, a case study is presented to illustrate the use of the presented method.


2011 ◽  
Vol 7 (3) ◽  
pp. 44-62 ◽  
Author(s):  
Valérie Monfort ◽  
Slimane Hammoudi

Service-Oriented Architectures (SOA) are widely used by companies to gain flexibility. Web services are the fitted technical solution used to support SOA by providing interoperability and loose coupling. Basic Web services are being assembled to composite Web services in order to directly support business processes. However, there is much to be done to obtain a genuine flawless Web service, and current market implementations do not provide adaptable Web service behavior depending on the service contract. This paper proposes two different approaches to increase adaptability of Web services and SOA. The first approach is based on Aspect Oriented Programming (AOP) as a new design solution for Web services. The authors have implemented an infrastructure to enrich services with aspects and to dynamically reroute messages according to changes, without redeployment. The second approach combines Model Driven Development (MDD) and Context-Awareness to promote reuse and adaptability of Web services behavior depending on the service context. Parameterized transformation techniques are proposed to bind context with business logic implemented by a service. The aim is to merge the two approaches to abstract and reduce the technical complexity of aspect based service solution.


Author(s):  
Douglas Rodrigues ◽  
Julio Cezar Estrella ◽  
Francisco José Monaco ◽  
Kalinka Regina Lucas Jaquie Castelo Branco ◽  
Nuno Antunes ◽  
...  

Web services are key components in the implementation of Service Oriented Architectures (SOA), which must satisfy proper security requirements in order to be able to support critical business processes. Research works show that a large number of web services are deployed with significant security flaws, ranging from code vulnerabilities to the incorrect use of security standards and protocols. This chapter discusses state of the art techniques and tools for the deployment of secure web services, including standards and protocols for the deployment of secure services, and security assessment approaches. The chapter also discusses how relevant security aspects can be correlated into practical engineering approaches.


2011 ◽  
pp. 132-155 ◽  
Author(s):  
Marten van Sinderen ◽  
João Paulo Andrade Almeida ◽  
Luís Ferreira Pires ◽  
Dick Quartel

This chapter aims at characterizing the concepts that underlie a model-driven service-oriented approach to the design of enterprise applications. Enterprise applications are subject to continuous change and adaptation since they are meant to support the dynamic arrangement of the business processes of an enterprise. Service-oriented computing (SOC) promises to deliver the methods and technologies to facilitate the development and maintenance of enterprise applications. The model-driven architecture (MDA), fostered by the Object Management Group (OMG), is increasingly gaining support as an approach to manage system and software complexity in distributed-application design. Service-oriented computing and the MDA have some common goals; namely, they both strive to facilitate the development and maintenance of distributed enterprise applications, although they achieve these goals in different ways. This chapter discusses a combination of these approaches and discusses the benefits of this combination.


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