Service Oriented Architecture

Descrição

Mapa Mental sobre Service Oriented Architecture, criado por d.rams em 13-05-2013.
d.rams
Mapa Mental por d.rams, atualizado more than 1 year ago
d.rams
Criado por d.rams mais de 13 anos atrás
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Resumo de Recurso

Service Oriented Architecture
  1. What is it?
    1. Architecture for building business applications
      1. Building BA as a set of loosely-coupled black box components
        1. Deliver well defined level of Service by linking together business processes
          1. Set of services that a business wants to expose to
            1. Customers
              1. Partners
                1. Portions of the organisation
              2. Key Principles
                1. Loose Coupling
                  1. Simplicity
                    1. Autonomy
                      1. Components offer small range of simple services to other components
                        1. Overall infrastructure much more flexible
                        2. Service Contract
                          1. Services adhere to a communications agreement, as defined by the service description
                          2. Black box component design
                            1. Service has control over the logic they encapsulate
                              1. Service hide the service they encapsulate
                              2. Reusability
                                1. Designed with intention of reuse
                                2. Composability
                                  1. Collections of services can be coordinated and assembled to composite
                                  2. Statelessness
                                    1. Services minimise retaining information relating to an activity
                                    2. Discoverability
                                      1. Service must be designed to be outwardly discriptive
                                    3. Making SOA happen
                                      1. SOA registry
                                        1. Used to view services available and group services to form business processes
                                        2. SOA Repository
                                          1. Stores all source code and linking information used to build all programs
                                          2. Business Process Orchestration Manager
                                            1. Connects whole business process from end-to-end
                                              1. Modelling Capabilities
                                            2. Organisation provide service
                                              1. IT systems must serve the needs of the organisation
                                                1. Business focused approach required
                                                  1. To make best use of existing IT assets
                                                    1. Create new services
                                                      1. Facilitate the inevitable changes