A Business Dictionary is a branch of knowledge, a discipline or a field of study. It is used to describe all the elements defining your information architecture.

A Business Skill is a Capability of an Organization (human resource) that has been acquired by training.

An Event represents a fact or an action occurring in the system, such as updating client information. It is managed by a broker. An application indicates that it can produce the event by declaring that it publishes it. If an application is interested in an event, it declares that it subscribes to the event.

A flow represents the circulation of information between components or within a component. A flow can carry a content.

A Gateway represents elements that are used to control how sequence flows interact as they converge and diverge within a process.

A Message represents information flowing within an enterprise or exchanged between the enterprise and its business environment. Messages can be information flows such as orders or invoices. For convenience, financial and material flows such as payments or product deliveries are also represented by messages.

A Message Flow represents circulation of information within a service interface. A message flow transports its content.

An Operational Flow Channel is used to graphically group a number of flows into a single flow.

An organization represents a person or a group of persons that intervenes in the enterprise Personnel Functions or information system. An organization can be internal or external to the enterprise. An internal organization is an organizational element of the enterprise structure such as a department, a service, or a workstation. An internal organization is defined based on how detailed you require your view of the enterprise to be (cf org-unit-type). Example: financial management, sales management, marketing department, account manager. An external organization is an organization that exchanges flows with the enterprise. Example: Customer, Supplier, Government Office.

A Personnel Function is a set of operations performed by org-units within a company or organization, to produce a result. It is depicted as a sequence of operations, controlled by events and conditions. In the BPMN notation, the Personnel Function represents a sub-Personnel Function from the organizational point of view.

A Personnel Function Action is an elementary step in process executed by an org-unit. It cannot be broken down. An operation can be industrial (manufacturing a component), logistical (receiving a delivery), or can involve information processing (entering an order).

A Post is a type of status assigned to an individual or a group of individuals which defines a job in an organization or hierarchy.

A Sequence Flow is used to show the order in which steps of an service contract will be performed. A sequence flow has only one source and only one target.