Service-Oriented Enterprise Architecture

Issues in IT Service-Oriented Requirements Engineering

“…If we extrapolate and apply the above socio-technical concepts to service-oriented RE, we would expect significant stakeholder involvement in the RE process, which should develop realistic customer expectations about provider and service capabilities and needs, provide bargaining and conflict resolution between customer and provider about design issues, reduce both customer and provider resistance to change, and commit both customers and providers to the new services. According to Steen and colleagues, "a service description and a protocol of collaboration and negotiation are the only requirements for shared understanding between a service provider and a service user" (Steen et al, 2005). We suggest there are likely to be socio-technical issues which arise in service provision which must be managed.…”

“…In the ITIL framework, principles of project management are absent (Servicetalk, 2004) while the softer issues such as organisational culture (McBride in Servicetalk, 2004) and customer involvement are also missing. Recently, Steen and colleagues emphasised the need for interdependency between layers of environment, business, applications and technology in IT service architecture, highlighting the potential influence of socio-technical issues on IT services (Steen et al, 2005). Due to paper size constraint, IT service management is not further discussed here; however, it will be the subject of a future publication.…”

“…In an increasingly service-oriented economy, corporate information technology (IT) management is evolving towards service-based models that offer continuous evaluation and improvement of application, communication, delivery and support services to internal and external customers (Mayerl et al, 2000;Niessink & Vliet, 1998;Peppard, 2003;Steen et al, 2005). Forecasts for IT services growth are strong in the US (IDC, 2004) while slower but still positive in Australia (Hayes, 2004).…”

“…Toward that end, this paper aims to explore issues of concern for service providers attempting to develop IT service-oriented requirements. Requirements engineering (RE) for IT services is located within the wider context of IT service management frameworks such as IT Infrastructure Library (ITIL) and strategies that encompass people, processes, knowledge and technology within a business context (Rands, 1992, Steen et al, 2005. Information systems strategies can also support the new IT service paradigm by aligning IT with business and reflecting a service focus (Edvardsson et al, 2000).…”

DYNSEA — A dynamic service-oriented Enterprise Architecture based on S-D-logic

“…Thus it is necessary to define the elements of DYNSEA in a way to Oriented Enterprise Architecture (SOEA) [45] are predominantly software-oriented or at least G-D logic based. support this co-creation of service.…”