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Explore the notion of service oriented computing Examine the benefits of service oriented architecture in information systems

......Figure 1: Anatomy of Web Services in an SOA Framework




Source: (Alonso, Kuno, Casati, Machiraju, 2004)



All SOA frameworks vary slightly based on the objectives companies implementing them are trying to accomplish. Figure 1 however provides insights into the basic components of any successful Web Services strategy for fully capturing and monetizing the value of an SOA strategy. The reliance on Services Directory (UDDI) components as they relate to supporting Service Description (WSDL) and Messaging Protocols is also crucial. The UDDI functions in many workflows as a data dictionary would in a traditional relational database architecture (Alonso, Kuno, Casati, Machiraju, 2004). The heavy reliance on the Simple Object Access Protocol (SOAP) is specifically included as part of the messaging protocol to ensure a higher level of authentication and security as enterprise customers are demanding successively higher levels of security in their application platforms (Bhm, Etalle, et.al. 2010). The reliance on SOAP as the unifying technology to the standard definition languages to the left of the model and SAML-based security and Management layers is also critical for the stability of entire Web Service performance
What the majority of enterprises concentrate on however is the Service Composition layer of the model where