Messages

1

Uml Process / Re: How can we show constant value entering the action? (SysML)

« on: December 07, 2021, 09:49:14 pm »

Object Node? Sounds good! I always saw Object Node on a flow, not as a beginning of flow.
Should we then connect the control flow to that block?
Thank you.

2

Uml Process / How can we show constant value entering the action? (SysML)

« on: December 04, 2021, 02:32:12 am »

Hello,

In MATLAB/Simulink we have simply constant element which is the start of the flow.
How can I do it in the ACT diagram? I know it is possible in the PAR diagram but how about ACT?
Placing an Action which is outputing a constant looks strange, action is a function, function is not supposed to provide constant output.
I may have a generic action with set of inputs and in particular case I would like to pass constatnly the same value which is not an input to the top level diagram were I want to use considered action.

Best regards,
DominikS

3

Uml Process / Is it possible to join signals into the strucutre on ACT (SysML)?

« on: November 26, 2021, 11:11:40 pm »

Hello,

Is it possible to simplify an Activity diagram in a way that I can easily join several signals into one structural signal? For example I calculate object position, speed and acceleration but I would like to output signal of a type 'object state', of cource using InterfaceBlock with proper set of FlowProperties (position, speed, ...).

Fork seems to be the closest solution for that but according to my understanding it can route just the same types of tokens. Or anyone thinks it is allowed to extend its purpose. I know that in such joining of signals it has to be guaranteed that all elements arrive a 'joining element' simultanously but let assume we satisfy this need.

If not a Fork, the only sollution I see is to place an Action which the only function is to receive n-inputs and output one structure but I don't like the fact that we use Action for something so trivial. In MATLAB we have Bus Creator/Bus Selector (or simpler elements: Mux/Demux) and this is what I need in SysML as well.

Best regards,
DominikS

4

Bugs and Issues / How to join signals into the group (structure)?

« on: October 12, 2021, 02:11:49 am »

Hi,

This is maybe more about SysML than the EA but...
Do you know if SysML supports joining the signals into the groups (in programming languages called structures) on the Activity diagrams?

Let's assume we have object flows as separate connectors named: User Input Value, User Input Diagnostics Status and I would like to group them into the one connector e.g. Diagnosed User Input. This is trivial example but imagine grouping of 10..20.. signals into one - could be helpful.

Neither "Join" nor "Merge" elements aren't dedicated for this operation as far as I know.

What would be your suggestion?
Always one may create an Activity with N inputs and 1 output but if this is simple grouping without any additional logic I don't think this is a good idea.

Br,
Dominik

5

Bugs and Issues / Re: How to edit fields in the Enumeration block?

« on: October 12, 2021, 02:03:25 am »

Thanks. I now the idea but its handling is wired.

6

General Board / Re: not showing classifier name of ports at instances

« on: September 09, 2021, 05:25:20 am »

Thank you.

7

Bugs and Issues / How to edit fields in the Enumeration block?

« on: September 08, 2021, 09:02:33 pm »

Hi,

I have no clue how to edit tags defining the set of elements in the Enumeration block. Do you know the way? If the only option is to delete the tag and create the new one it seems to be a bug.

I am using SysML 1.5, EA 15.2.

DS

8

General Board / Re: not showing classifier name of ports at instances

« on: September 08, 2021, 08:08:12 pm »

Hi,

do you know if there is a similar feature for Action Pins?
Would be useful .

DS