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Messages - Svend Erik Nygaard

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46
General Board / Re: How do you model AS-IS/TO-BE in EA?
« on: December 05, 2014, 09:55:11 am »
Quote
In general my experience is to avoid it all together.
...
We just have one model, that is part AS-IS, part TO-BE.
...
is used not only in small shops, but even in the biggest corporate multinational organisations.
...
The only exception I see right now is when you do full MDA.
...

Thanx Geert. The mixed model is what we are doing now.
I anticipate some requests for doing some kind of split model. The upcoming discussion would be easier for me, if I had some references to those big companies that you mention. Could you mention some of them here? - or perhaps just your own company - as far as I remember you have 2-300.000 elements in yoour reposirtory?

MDA: No we don't generate any code at all. We use EA for an enterprise model (Strategy-capabilities-processes-business concepts-IT applications,database-IT Infrastructure).

47
General Board / Re: How do you model AS-IS/TO-BE in EA?
« on: December 05, 2014, 09:41:35 am »
Quote
I got the following when searching for "future":
http://www.sparxsystems.com/cgi-bin/yabb/YaBB.cgi?num=1412297067/0#0
http://www.sparxsystems.com/cgi-bin/yabb/YaBB.cgi?num=1407407304/3#3
http://www.sparxsystems.com/cgi-bin/yabb/YaBB.cgi?num=1400191441/1#1
http://www.sparxsystems.com/cgi-bin/yabb/YaBB.cgi?num=1382311551/1#1

q.

Thanx Qwerty, Those are good links - at least in the way, that they tell me, that  there really isn't any ideal solution (far from it) - when that's the cae, at least it is good to know so.

48
General Board / Re: How do you model AS-IS/TO-BE in EA?
« on: December 04, 2014, 08:44:27 am »
Yes, this time I did get a match on ONE post.
That is the one post you see above - LOL

49
General Board / Re: How do you model AS-IS/TO-BE in EA?
« on: December 04, 2014, 08:40:19 am »
Of course I searched on it before I posted !
I searched on "AsIs", "As-Is", "ToBe", "To-Be"
All four searched gave zero result.
And I WOULD expect those search criteria to match relevant posts. ! :-)
I only searched under the general board though.
...
Any way - I'll have another go then ...

50
General Board / How do you model AS-IS/TO-BE in EA?
« on: December 04, 2014, 02:38:44 am »
I would very much like to hear experiences from other EA users:
How do you model AS-IS/TO-BE in EA?
E.g.:
- In the same repository?
- In different repositories?
- How do you merge To-Be into As-Is?
- Good ideas for GAP analysis?
Hope very much to hear/see some good suggestions/experiences :-)

51
General Board / Re: BPMN Called activity: Name synchronization?
« on: November 28, 2014, 03:48:45 am »
Quote
Then simply re-use as a Link all other process diagrams, where these Activity is called.

But that ruins traceability. And the individual flows into such an activity would split into all the other flows exiting from that activity from all of the diagrams - unless I test on the diagram together with the flows/activity in my reports.

52
General Board / Re: BPMN Called activity: Name synchronization?
« on: November 28, 2014, 03:39:55 am »
Quote
However, it is convenient to have an option to show up the label in this format,
callActivityName : calledElementName
...
If that's the case, then this might be a feature request.

That is actually exactly what I had hoped for. On BPMN Lanes I set the classifier to be the actor from my concepts UML model. And that works, as you described above.
I tried that on the BPMN Activity, but it does not have a similar effect.

53
General Board / BPMN Called activity: Name synchronization?
« on: November 27, 2014, 10:00:22 am »
Did I miss something - or is it correct that EA BPMN does not offer me any name syncing for "isACalledActivity" activities:
- I have to specify names redundantly, manually
- I have to rename all the "isACalledActivity" activities manually when changing the 'mother' activity's name
?

54
General Board / Re: BPMN with Sparx: Is there an in-depth text boo
« on: October 10, 2014, 12:59:20 am »
Thanks, Ian. But that book doesn't seem to address BPMN (?)

55
General Board / Re: BPMN with Sparx: Is there an in-depth text boo
« on: October 07, 2014, 12:12:22 am »
Thanks :-/  :-)

56
General Board / BPMN with Sparx: Is there an in-depth text book ..
« on: October 06, 2014, 07:00:00 pm »
Is there an in-depth text book for BPMN with Sparx?

57
General Board / Re: BPMN: Data objects vs Classes?
« on: October 22, 2014, 12:05:38 am »
(I'm back on the BPMN stuff now)
Thanks everyone. At least I can see, you have the same considerations as I do :-/
I think I'll have to use instances (either DataObjects or Class Instances) - if not for other reasons then in order to present multiple instance states of the same class in multiple places on the same process diagram.

58
General Board / BPMN: Data objects vs Classes?
« on: October 10, 2014, 02:24:06 am »
In my concept/information model I have classes representing physical objects as well as information objects. We have definitions, descriptions and a ton of other valuable specs/connections associated with these clases.

However in BPMN it is suggested that I use a ”Dataobject” element (as physical objects or information objects).
On the DataObject I can specify an ”ItemDefinition” element, and then on the Itemdefinition I can specify my class from my conceptual/information model. To me this is a lot of indirection a lot of extra work and elements:
DataObject.itemSubjectRef -> ItemDefinition.structureRef -> Class
That gives me three elements instead of one.

EA BPMN actually does not prevent me from using my Class elements directly with the BPMN data associations instead of the DataObject elements. So I’m very tempted to just use my classes directly in BPMN (or instances – or instances with states)
Is that a bad idea? Have I misunderstood the way to link from BPMN to my classes in concept/information model?

59
General Board / Re: BPMN: Data associations at two levels?
« on: October 07, 2014, 12:08:27 am »
Thanks.
Nice to be sure that I hadn't missed a point on this :-)

60
General Board / BPMN: Data associations at two levels?
« on: October 06, 2014, 08:46:50 pm »
Do I have to create separate data associations for detail level (inside the process) and for top level (inter process)?

I have a top level view showing the object transferred between the two top level processes as shown here:


And I also have detail views for the internals of those processes showing which internal activies sends/receives the object - as shown below for the process that sends the object to the other process (physically drives the object and leaves it at the place where the other process picks it up:


Now the question is: Do I have to create the data association at both levels - or is there a way that EA recognizes the lower level data association and is able to show it automatically at the higher level?



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