An activity diagram is a mapping of the steps involved in a repetitive process to a visual workflow
An activity diagram is a subset of UML which is intended to facilitate and codify decisions and priorities within an organization.
References
Questions tagged [activity-diagram]
246 questions
56
votes
1 answer
How do I represent a loop in an activity diagram?
I'd like to represent a loop in a UML activity diagram. Here's my situation:
For each folder, I check each document within that folder
For each document I check its content:
If it's invalid (based on keyword searching), do action X and pass to…
hereForLearing
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37
votes
4 answers
Difference between StateChart and Activity Diagram
I am really unable to understand the real difference between these 2 diagrams. I mean both of these deal is "states" but I am not sure what deals with what?
itsaboutcode
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- 156
29
votes
5 answers
Differences between DFD (Data Flow Diagram) and activity diagram
I need to know this differences in order to undestand how to use them right.
Which are the differences of DFD and Activity diagram?
llazzaro
- 3,970
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19
votes
3 answers
What is the difference between a flow chart and a UML activity diagram?
I know that an activity diagram is:
More simple;
More standardized;
Support concurrent flows.
compared to a flow chart.
But what are the possible reasons for using an activity diagram instead of a flow chart apart from those mentioned above?
yelo
- 371
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15
votes
2 answers
Join and Merge in activity diagram
What is the difference between Join and Merge in Unified Modeling Language Activity Diagram. Give an example to understand more clearly.
AzeEm AnJum
- 161
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- 1
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13
votes
1 answer
In an activity diagram, are there two initiating events allowed?
I want to model an activity, where there can be two several initiating events. These events has two several responsible actors. Is it allowed that a UML activity-diagram could have two initiating events and only one end? Could the action-flow be…
martin
- 2,957
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12
votes
3 answers
Is there any "switch case" in UML use-case specification?
Is there any "switch case" in use-case specification?
In the requirements:
When user select "contract" in combobox, a "contract" tab appears, then user will interact with the "contract" tab.
When user select "Independently funded", a "Funding" tab…
Susuri Yuyuki
- 153
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9
votes
3 answers
Automatically generate flowcharts out of C++ code
I need to automatically construct flowcharts out of C++ code, ideally one flowchart per source file.
Is there any tool (preferably C++/Python and either open-sourced or highly configurable - so I may change the look) that I can use to create…
Konstantin
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9
votes
2 answers
Asynchronous Callbacks in UML Activity Diagrams
I'm trying to model my Application with UML Activity Diagrams. I'm using JavaScript and Node.js and lots of asynchronous callbacks. Here is what I came up with:
What do you think? Do you understand whats going on? I'm using a "generic connector"…
Chris
- 4,204
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7
votes
1 answer
How to add text into decision node UML in visual studio 2012
I try to use activity diagram in Visual studio. When I add a decision node to diagram, there is no way to add text to display true or false condition. I searched in connector properties but it doesn't help.
Look at this, I want to add true and false…
ductran
- 10,043
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6
votes
2 answers
How to use expansion regions for loops in an activity diagram?
I am having problems designing a proper UML activity diagram.
I've seen similar questions and possible answers:
How to present a loop in activity diagram?
Even with these answers I am having doubts and my own answer doesn't correspond with the UML…
Jax Teller
- 163
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6
votes
1 answer
Uncertain about exception handling in UML 2.0 Activity Diagram
HI,
I recently was reverse engineering a certain project to UML, and was stuck at a point where I could not reach a conclusion. The code is fairly simple:
...
try
{
sj =…
CSharpenter
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5
votes
4 answers
How to reference earlier activity in PlantUML UML Activity Diagram
I am trying to make an activity diagram with PlantUML (new beta syntax).
So far I came up with (simplified):
@startuml
start
:A;
if (Q1) then (yes)
:B;
if (Q2) then (yes)
:D;
else (no)
:E;
endif
else (no)
…
Roderik
- 307
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5
votes
1 answer
Merge node in activity diagram
I'm learning Activity diagram in UML and now I'm confused with the following diagram for representing procedures when calling a pizza.
I think a merge node should be added before the join node because if not, the join node will wait forever. Is that…
lenhhoxung
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5
votes
1 answer
PlantUML Activity Diagram Go Back
I am using PlantUML to create an Activity diagram.
I want the arrow that comes out of Modify Details to go back to OP2 instead of the diamond.
I have this diagram:
@startuml
|Swimlane1|
start
:OP1;
|Swimlane2|
:OP2;
if (Form Valid?) then…
JohnyChew
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