Hello,
To see the main differences between UML activity diagram and SysML
activity diagram, I advice you to look at the SysML specification that
you can find on the OMG site.
regards,
Frederic
Gautam Thaker a écrit :
> Hello Thibault:
>
> thank you very much for you reply. You had the correct interpretation for my
> question. A bit more:
>
> Is there a URL that gives a good summary of how SysML activity diagrams
> differ from UML activity diagrams? i am using
> the INCOSE SysML tutorial and I can't yet see what is missing in UML activity
> diagram at this time that would be needed
> to satisfy SysML activity diagrams.
>
> GHT
>
>
> Thibault LANDRE wrote:
>> Hello Gautam,
>>
>> Gautam Thaker a écrit :
>>> Hello:
>>>
>>> I am using topcased v2.1 on linux.
>>>
>>> I am not an expert in modeling world so please bear w/ me.
>>>
>>> 1. I have an activity diagram in which i have 2 activity partitions. I
>>> want to create then an opaque action inside each activity partition. I
>>> can draw all this fine, and properties of the opaque action even says
>>> it is "In Partition <partition_name>", but there seems to be no way to
>>> tie the partition and the opaque action together so that even as I
>>> move partitions around the opaque action would stay contained within
>>> in. Is this possible (and even useful/correct)?
>> I an not sure I have well understood your problem. So I will answer in
>> the two ways I understand ;)
>>
>> 1- Move the partition and the action defined within it :
>> You have to make a selection of the zone of your partition (click on the
>> upper left corner of your partition, keep clicking and release the
>> button at the lower right corner of your partition). Like this you
>> should have your partition selected along with the elements contained in
>> it.
>> Then you just have to move this selection and all the elements selected
>> should tag along.
>>
>> 2- The property InPartition
>> The refresh of this property is made by calculating the position of the
>> partition and its related action.
>>
>> If the two elements are displayed in the diagram, and if the action is
>> fully contained in the partition, then the InPartition property and its
>> corresponding property for partition ("Node") are set.
>>
>> If you move your partition, and if your action is not contained
>> graphically in the partition, then the action is not considered anymore
>> in the partition.
>>
>> If you work on a diagram where only one of these two elements is
>> displayed, their relation's properties(InPartition, Node) shouldn't be
>> updated.
>>
>>> 2. It appears that activity diagrams support in topcased is from UML.
>>> However, it is my understanding that in SysML activitity diagrams are
>>> modified from the standard UML version. Yet, it appears that activity
>>> diagrams one can generate in topcased seem to do all that SysML
>>> activity diagrams can do or want. Is there any difference in
>>> topcased's activity diagram in UML models versus activity diagrams in
>>> SysML models?
>> We have not implemented yet the SysML Activity diagram.
>> The activity diagram available in the SysML editor is the one from UML
>> (not a single modification has been made).
>>
>>
>> Best Regards,
>>
>> Thibault
>>
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