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Services are independent and control the functionality they encapsulate, from a Design-time and a run-time perspective. Service statelessness Services are stateless, that is either return the requested value or give an exception hence minimizing resource use. Service granularity A principle to ensure services have an adequate size and scope.
The master service agreement serves as a master contract governing the terms over potentially multiple SOWs. Sometimes it refers to scope of work. For instance, if a project is done on contract, the scope statement included as part of it can be used as the SOW since it also outlines the work of the project in clear and concise terms. [3]
Due to the fallacies of distributed computing, finding an adequate granularity is hard. [2] There is no single simple answer but a number of criteria exist (see below). A primary goal of service modeling and granularity design is to achieve loose coupling and modularity, which are two of the essential SOA principles, [3] and to address other architecturally significant requirements.
Services Computing has become a cross-discipline that covers the science and technology of bridging the gap between business services and IT services.The underlying technology suite includes Web services and service-oriented architecture (SOA), cloud computing, business consulting methodology and utilities, business process modeling, transformation and integration.
Once the terms have been approved, the members of the project team have a clear definition of the scope of the project. They will then be ready to progress with implementing the remaining project deliverables. This phrase "terms of reference" often refers to the task(s) assigned to a consultant or adviser.
Subpart 37.2 defines advisory and assistance services and provides that the use of such services is a legitimate way to improve the prospects for program or systems success. FAR Part 37.201(c) defines engineering and technical services used in support of a program office during the acquisition cycle.
Scope of a project in project management is the sum total of all of its products and their requirements or features. Scope creep refers to uncontrolled changes in a project's scope. This phenomenon can occur when the scope of a project is not properly defined, documented, or controlled.
A scope statement should be written before the statement of work and it should capture, in very broad terms, the product of the project (e.g., "developing a software-based system to capture and track orders for software"). A scope statement should also include the list of users using the product, as well as the features in the resulting product.