Complex Gateway Divergence: is used to control complex decision points that are not easy to manage with other types of gateways. Convergence: When the Gateway is used as a Merge then there will be an expression that will determine which of the incoming Sequence Flow will be required for the Process to continue.

Compensation Intermediate Event The Compensation Intermediate Cvent enables you to handle compensations. When used within the sequential flow of a process they indicate that a compensation is necessary (throwing). When used on the borders of an activity it indicates that this activity will be compensated when the event is triggered (catching). Link Intermediate Event Is used to connect two sections of the process. Gateways are elements used to control divergence and convergence of the flow. (Split and Merge) Data-Based Exclusive Gateway Divergence: the Exclusive Decision has two or more outgoing Sequence Flows, but only one of them can be taken and the decision will be taken after evaluating a business condition.

Timer Intermediate Event Indicates a waiting time within the process. This type of event can be used within the sequential flow indicating a waiting time between the activities or attached to boundary of an activity to indicate an exception flow when a time-out occurs. Conditional Intermediate Event Is used when the flow needs to wait for a business condition to be fulfilled. It can be used within the sequential flow indicating that it should wait until a business condition has been fulfilled or attached to boundary of an activity indicating an exception flow that is activated when the condition is met. Signal Intermediate Event Is used to send or receive signals. If it is diagrammed within the sequential flow of a process it can send or receive signals. If it is diagrammed attached to boundary of an activity, it can only receive signals and indicating an exception flow that is activated when the signal is captured. Multiple Intermediate Event This means that there are multiple triggers assigned to the Event.

Data Object • Provides information about the entrance and exit of an activity. • Is a visual mechanism that allows the grouping of activities for the purpose of documentation or analysis. Timer Start Event Indicates that a process starts at certain time or on a specified date Conditional Start Event A process starts when a business condition becomes true. Signal Start Event A process starts when a signal coming from another process is captured. Note that the signal is not a message; messages have clearly defined who sent them and who receives them. Multiple Start Event Indicates that there are many ways to start the process. Only one of them will be required to start the process.

Embedded sub-process Depends completely on the parent process. It cannot contain pools or lanes fl Reusable sub-process Is a defined process like another business process diagram, that does not depend on the parent process. ~ml Group 0-0, Conditional Sequence Flow .N-30- Default Sequence Flow Message Flow • A Message Flow is used to show the flow of messages between two entities or processes. • Message flows represent messages, not flow controls. • Not all message flows are fulfilled for each instance of the process nor is there a specific order for the messages. Association • An Association is used to associate information and • Artifacts with Flow Objects.

Sequence Flow • Is used to show the order that activities will be performed in a Process. • It is used to represent the sequence of the flow objects, where we find activities, gateways and events.Message Intermediate Event Indicates that a message can be sent or received. If the event is of reception, it indicates that the process has to wait until the message has been received. This type of event can be used within the sequential flow or attached to boundary of an activity to indicate an exception flow.

Sub-process Is a compound activity whose detail is defined as a flow of other activities Message Start Event A process starts when a message is received from another participant. 0 End Events • End Event indicates where a process will end. • A process can have more than one end. It does not have outgoing sequence flows. Message End Event Indicates that a message is sent to another process when the process arrives at the end. • A pool is a container of a single process. • The name of the pool can be considered as the name of the process. • There is always at least one Pool. • A lane is a subdivision of a pool • Represents a role or an organizational area. Connecting Objects

Activities [Rounded rectangles] Activities represent the work performed by an organization; it is a step within the process.Activities can be atomic or compound. Events [circles] Events represent something that happens or may happen during the course of a process. These Events affect the flow of the Process and usually have a cause or an impact and there are 3 types of events based on how the process flow is affected. E) Task A task is a simple activity which is used when the work performed within the process is not defined at a more detailed level. BPMN defines different types of tasks: Script Reference • Intermediate Events indicate something that occurs or may occur during the course of the process, between Start and End. • These can be used within the sequence flow or attached to the boundary of an activity. Intermediate Events can be used to catch or to throw the event trigger. • When the event is used to catch the Event marker will be unfilled, and when the event is • used to throw the Event marker will be filled.