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An Inclusive Gateway is one of the most common gateways used in BPMN and is depicted as a diamond with a circle within it.  

When used as a diverging gateway (splitting the sequence flow into many paths), an inclusive gateway can have 2 or more outgoing paths.  It is used to direct the sequence flow along all paths where the condition evaluates to “True”.   When using an inclusive gateway ONE, SEVERAL, OR ALL paths can be taken for a given instance of a process.  Each condition is checked and if it evaluates to true a token is sent down the path.  With an inclusive gateway, even after a condition evaluates to “True” the rest of the conditions are checked to see if other tokens should be released along the other paths.

Often, there is one path which is identified as the default path.  This means that if no other path condition evaluates to true then the default path will automatically proceed.  If the process modeler fails to define a default path and none of the path conditions evaluate to true then a runtime exception occurs.

When used as a converging gateway, an inclusive gateway will wait for all tokens to arrive before merging and synchronizing the flow.  Each converging inclusive gateway needs to have an associated diverging gateway earlier within the process such that it is aware of which paths were activated and the tokens it should be waiting for.