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- Connector
- The chronological connection between two Activity Decision Flow Diagram
objects. By default, it represents the flow of control in an Activity Decision
Flow Diagram. However, a Connector can be defined as a Data Flow Only in
conjunction with a Phi.
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- Task (a rounded rectangle)
- A Task object represents the lowest-level activity that a person or system
can perform.
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- Phi
- An Activity Decision Flow Diagram object that is an output from one
activity and/or an input to the next activity. This object represents the data
or product that is manipulated or produced during the performance of a
Process. The name “Phi” is derived from the Greek letter phi (F)
because it is made up of the letter I (for input) superimposed over an O (for
output).
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- Process (a square)
- A Process object represents a high-level grouping of activities that take
place in a business process. A Process may contain Task objects or even other
processes, called sub-processes, creating a hierarchy.
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- External Entity (an oval)
- An External Entity is outside the organization (customer, partner,
supplier) that affects your organization's processes.
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- Decision (a diamond)
- There are two forms of a Decision: Binary and Multiple.
- Binary Decisions
- A Decision that has two pre-defined Choices: Yes and No.
- Multiple Decisions
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- Exclusive
- Inclusive
- Complex
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- Choice (a small octagon)
- At a Decision, a Choice must be made to determine the Task that will
follow. Choice objects are the possible outcomes of a
Decision.
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- Stop (a traffic stop sign)
- A graphical marker, with no data attached to it, that shows that a path
within the Process has ended. A process may have multiple paths, with some
paths coming to an end while others continue.
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- Go To (a star)
- Go To's that are shaped as stars indicate a shortcut for a Connector
that would otherwise stretch over too great a distance in the diagram (would be
hard to follow and distracting).
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- Annotation (a sticky note)
- Yellow notes to write comments on the Process Flow to further explain or
define any aspect.
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- Control Flow Only
- One of two types of Process Flow, the other type is Data Flow. A situation
where the flow of control between activities is not accompanied by the flow of
Data. A Connector drawn with a solid line with no Data between activities
represents Control Flow Only.
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- Control Flow and Data Flow
- Specifies the chronological sequences of activities in a Process. A
connector drawn with a solid line between activities represents Control Flow.
If one or more Data is inserted between the activities, then the Control Flow
is accompanied by Data Flow. Data Flow is a representation of the data or
objects that are produced and transferred between activities. The Data that are
inserted between activities are the graphical representation of Data
Flow.
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- Data Flow Only
- A situation where the flow of data between activities is not accompanied by
the flow of control. A Connector drawn with a dotted line with a Phi between
activities represents Data Flow Only. A Phi is required for Data Flow
Only.
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