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The Web Services Business Process Execution Language (WS-BPEL), commonly known as BPEL (Business Process Execution Language), is an OASIS [1] standard executable language for specifying actions within business processes with web services. Processes in BPEL export and import information by using web service interfaces exclusively.
For instance, a GET request to a hotel reservation system might return a number of available rooms along with hypermedia links (these would be html hyperlink controls in the early days of the model) allowing the client to book specific rooms. This is the last level of the Richardson Maturity Model. Request:
Under HTTP 1.0, connections should always be closed by the server after sending the response. [1]Since at least late 1995, [2] developers of popular products (browsers, web servers, etc.) using HTTP/1.0, started to add an unofficial extension (to the protocol) named "keep-alive" in order to allow the reuse of a connection for multiple requests/responses.
Extensibility is a measure of the ability to extend a system and the level of effort required to implement the extension. Extensions can be through the addition of new functionality or through modification of existing functionality.
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.
Version 2.0 of BPMN was released in January 2011, [1] at which point the name was amended to Business Process Model and Notation to reflect the introduction of execution semantics, which were introduced alongside the existing notational and diagramming elements.
For event driven simulation it is also possible for a federate to request to be advanced to the next event using the following service: NextMessageRequest whereby a federate requests to be advanced to the timestamp of the next message due for delivery to the federate, or a specified logical time, whichever has a lower timestamp.
In information technology, a service level indicator (SLI) is a measure of the service level provided by a service provider to a customer. SLIs form the basis of service level objectives (SLOs), which in turn form the basis of service level agreements (SLAs); [ 1 ] an SLI can be called an SLA metric (also customer service metric , or simply ...