Decisions are locations within a business process where the Sequence Flow can take two or more alternative paths. This
is basically the "fork in the road" for a process. For a given performance (or instance) of the process, only one of
the forks can be taken. A Decision is a type of Gateway.
This term can be found in the OMG Business Process Modeling Notation, V1.2 (Beta 3) specification http://www.omg.org/docs/dtc/08-02-07.pdf
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