SERVICE ORIENTED ARCHITECTURE

Service-oriented architecture (SOA) supply methods for systems development and integration where work interoperable services. A SOA suppose application functionality distribution in distinct units called services that communicate with each other. This serService oriented architecture, interface, coplage, loosly cooplage, services, consummer, orchestration, metadata,.programming, programming lanuage.

The Value Proposition of Service-Oriented Architecture

The author of this thesis evaluates Service-Oriented Architecture (SOA) design and implementation strategies. The purpose is to provide the reader with the definition of Service-Oriented Architecture. This report discusses: (1) The definition of Service-Oriented Architecture, (2) The problems solved by Service-Oriented Architecture, (3) Application of design principles to achieve Service-Oriented Architecture. As a result of this investigation, Service-Oriented Architecture is a design style that is fundamentally about sharing and reuse of functionality across diverse applications, so that organizations can quickly adapt to changing business requirements while increasing IT asset reuse and minimizing integration and development costs

Resilient Critical Infrastructure Management using Service Oriented Architecture

Abstract—The SERSCIS project aims to support the use of interconnected systems of services in Critical Infrastructure (CI) applications. The problem of system interconnectedness is aptly demonstrated by ‘Airport Collaborative Decision Making’ (ACDM). Failure or underperformance of any of the interlinked ICT systems may compromise the ability of airports to plan their use of resources to sustain high levels of air traffic, or to provide accurate aircraft movement forecasts to the wider European air traffic management systems. The proposed solution is to introduce further SERSCIS ICT components to manage dependability and interdependency. These use semantic models of the critical infrastructure, including its ICT services, to identify faults and potential risks and to increase human awareness of them. Semantics allows information and services to be described in such a way that makes them understandable to computers. Thus when a failure (or a threat of failure) is detected, SERSCIS components can take action to manage the consequences, including changing the interdependency relationships between services. In some cases, the components will be able to take action autonomously — e.g. to manage ‘local’ issues such as the allocation of CPU time to maintain service performance, or the selection of services where there are redundant sources available. In other cases the components will alert human operators so they can take action instead. The goal of this paper is to describe a Service Oriented Architecture (SOA) that can be used to address the management of ICT components and interdependencies in critical infrastructure systems. Index Terms—resilience; QoS; SOA; critical infrastructure, SLA

From service-oriented architecture to service-oriented enterprise

Service-Oriented Architecture (SOA) was originally motivated by enterprise demands for better business-technology alignment and higher flexibility and reuse. SOA evolved from an initial set of ideas and principles to Web services (WS) standards now widely accepted by industry. The next phase of SOA development is concerned with a scalable, reliable and secure infrastructure based on these standards, and guidelines, methods and techniques for developing and maintaining service delivery in dynamic enterprise settings. In this paper we discuss the principles and main elements of SOA. We then present an overview of WS standards. And finally we come back to the original motivation for SOA, and how these can be realized

Audit Techniques for Service Oriented Architecture Applications

The Service Oriented Architecture (SOA) approach enables the development of flexible distributed applications. Auditing such applications implies several specific challenges related to interoperability, performance and security. The service oriented architecture model is described and the advantages of this approach are analyzed. We also highlight several quality attributes and potential risks in SOA applications that an architect should be aware when designing a distributed system. Key risk factors are identified and a model for risk evaluation is introduced. The top reasons for auditing SOA applications are presented as well as the most important standards. The steps for a successful audit process are given and discussed.Service Oriented Architecture, Audit, Quality Attributes, Interoperability, Performance, Security