Designing and Implementing Business Process Models : ARIS Method manual : Modeling BPMN 2.0 : BPMN core elements and their implementation in ARIS : Common elements : Sequence flow
Sequence flow
The BPMN sequence flow is mapped to nine different ARIS connection types, which are used to depict the control flow in traditional ARIS process models
See: Business Process Model and Notation (BPMN) 2.0.
Source object type
Connection type
Target object type
Event
occurs before
Event
Event
activates
Function
Event
is evaluated by
Rule
Function
creates
Event
Function
is predecessor of
Function
Function
leads to
Rule
Rule
leads to
Event
Rule
activates
Function
Rule
links
Rule
BPMN distinguishes three types of sequence flow:
*Unconditional sequence flow
The unconditional sequence flow means the normal flow, no specific conditions apply. In other words: its condition has always the value true. It is depicted by a solid line with a solid arrowhead.
BPMN unconditional sequence flow
*Conditional sequence flow
The conditional sequence flow out of an activity is drawn with a little diamond at the beginning of the connector, signifying a data condition. A conditional sequence flow out of a gateway shares the same shape as a normal sequence flow.
Conditional sequence flow out of an activity:
BPMN conditional sequence flow
*Default sequence flow
The default sequence flow, denoted by a slash marker at the beginning of the connector means otherwise, i. e. it is enabled if no other sequence flow condition evaluates to true.
BPMN default sequence flow
All connection types used in BPMN models must hold attributes for recording text annotations. Connection types emerging from activities and gateways need additional attributes for recording sequence flow conditions.
Mapping the attributes and model associations to ARIS:
Class
BPMN attribute name
Implementation in ARIS
Sequence flow
inherits from FlowElement
The sequence flow is depicted by nine different connection types in the model types BPMN process diagram (BPMN 2.0) (MT_BPMN_PROCESS_DIAGRAM) and BPMN collaboration diagram (BPMN 2.0) (MT_BPMN_COLLABORATION_DIAGRAM):
* event occurs before (CT_SUCCEED) event
* event activates (CT_ACTIV_1) function
* event is evaluated (CT_IS_EVAL_BY_1) by rule
* function creates (CT_CRT_1) event
* function is predecessor of (CT_IS_PREDEC_OF_1) function
* function leads (CT_LEADS_TO_1) to rule
* rule leads to (CT_LEADS_TO_2) event
* rule activates (CT_ACTIV_1) function
* rule links (CT_LNK_2) rule
 
name: string
Attribute type Connection role of connection type Message flow (CT_BPMN_MESSAGE_FLOW)
 
sourceRef: FlowNode
Source object of a sequence flow connection: Object types are: Function, Event, Rule
 
targetRef: FlowNode
Target object of a sequence flow connection: Object types are: Function, Event, Rule
 
conditionExpression : Expression [0..1]
Attribute type Condition expression (AT_BPMN_CONDITION_EXPRESSION) in attribute type group BPMN 2.0 attributes of the following connection types: * activates (CT_ACTIV_1) * creates (CT_CRT_1) * links (CT_LNK_2) * leads to (CT_LEADS_TO_1) * leads to (CT_LEADS_TO_2) * is predecessor of (CT_IS_PREDEC_OF_1) The value of the attribute type Sequence flow condition in the attribute type group BPMN 2.0 attributes must be set to Conditional sequence flow.
 
isImmediate: boolean
Not considered in the 1st version of the BPMN 2.0 implementation.
Flow node
incoming: Sequence Flow [0..*]
Incoming connections representing the sequence flow of the flow node object (object types: function, event, rule)
 
outgoing: Sequence Flow [0..*]
Outgoing connections representing the sequence flow of the flow node object (object types: function, event, rule)
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