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Service Oriented Architecture White Paper (PDF)
Organizations vary tremendously in their purpose, scope, size, structure and community. Nevertheless, careful study of their underlying information technology presents a broad set of common concerns and requirements, such as the need to align IT with the organizations missions and objectives, IT governance, providing competencies and abilities to share information and collaborate effective and efficiently. HP’s answer to these requirements is what we call an “Adaptive Enterprise” (AE).The Adaptive Enterprise is HP’s vision of an organization in which business and IT are synchronized to capitalize on change. The Adaptive Enterprise helps companies lower IT-related costs while making IT flexible enough to deliver what they really need - simplicity, agility, and value. An Adaptive Enterprise enables companies to achieve a tight coupling between business and IT so they are able to quickly and easily respond to change, helping to maximize return, mitigate risk, improve performance and increase agility.
The Adaptive Enterprise design principles: simplification, standardization, modularity, and integration, along with the key architecture design rules- service-oriented architecture (SOA), virtualization, and model-based automation. HP uses these principles to drive technology decisions that give sustainable and practical value.
“SOA” is arguably the most recognizable acronym in IT these days. This is because Service-Oriented Architecture has the potential to enable a much higher degree of business agility by transforming enterprise IT based on a service-driven delivery model. HP’s Adaptive Enterprise visualization methodology provides a practical approach for developing an SOA implementation roadmap that focuses on mission critical process and provides the organization agility to collaborate and share information in a secure manner.
IT organizations experience a range of challenges as they move from tactical Web services to enterprise SOA and business services. These challenges involve build-, deployment- and run-time issues. Some of the challenges introduced by an SOA are business service security, business service governance and auditing, service level compliance and business service life cycle management.
Critical success factors for an SOA implementation that alleviate and mitigate the challenges include defining coarse grained services and agile, loosely coupled business process. Furthermore, there is a need for SOA governance which provides a set of solutions, policies and practices which enable organizations to implement and manage an enterprise SOA. It is the SOA governance which makes it possible to realize ROI and the business benefits of loosely coupled services.
Finally, for any federal organization compliance with the five Federal Enterprise Architecture (FEA) reference models is a mandatory requirement. The six layers of Adaptive Enterprise map directly to the FEA reference models, their by assuring compliance with all federal mandates and regulation such as the Clinger Cohen Act, ITMRA, OMB A-300, A-130 et al.
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