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Messages - Svend Erik Nygaard

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1
Thanks a lot, you guys, for a lot of response.

Somehow, I had erroneous concluded that I could only create RefGuid tags that referred to objects (not to attributes).
Paolo's and Geert's response made me check up on that - and happy news (for me :-) ) - it was actually possible (not DOA).

Like Geert, we will reference from messages to our conceptual model (in our case we have one conceptual which also makes up for the logical data model).

However we will not map only messages - we will map any implementation model (including DB schema, APIs, GUIs etc) to the concept model (where relevant).
In that regard, I have a challenge when using other MDGs like datmodel MDG with table column stereotypes. These are great for reverse engineering - but I cannot expand these existing MDGs (e.g. table column) to include the new RefGuid tag (or ...?).
I guess it would be possible to modify the relevant MDG XML file (and remember to re-modify them when we receive new MDG versions - but arrgghhh - right?)

@Geert, the plugin that you made, does that support adding such RefGuid tags to e.g. table column? - for instance by letting the plugin itself add such tags when needed?


2
Any good tips on how to make references between attributes (across) elements?

One option, of course, would be to create connectors between them ('link to feature') - but that will totally clutter our model - so that option is out (unless I have missed some way to filter them out from diagrams and miscellaneous windows (relationships, insert related )

Another option would be to create shadow elements for all the attributes that I want to link to and then choose such an element in the type property for the referring attribute - but again clutter   - so that one is out too.

A third option is DOA: Creating special reference tags that refer to attributes in stead of to classes - is not possible anyway.

The fourth option - which I'm considering - is creating an attribute tag, that holds ea_guid of the referred attribute -  but that will not be user-friendly in the EA gui, since it will only show a guid. I would probably create an accompanying tag that shows fx the name of the referred tag, and its parent element - and then keep that synchronized. I would also have to create a GUI to maintain such references.

hmmm - it would be great to hear tips from you on a better solution ???




3
... might be 'in the cloud', i.e. outside your corporate network if you choose to host your database on say Azure.
... ProCloud also gives you additional access options, ie a REST interface which your web component could use

Thanks a lot for your answer,  OpenIT Solutions.

I'm really thin on this topic - and find it difficult to find the answer(s) to this wuestion on Sparx' site.

Many of our queries involve joins with 50+ joins - I expect the REST interface to be a problem here (?). In fact, it seems to me, that the REST API largely only offers calls to query a given object and the features of a given type of a given object. - is that also yopur understanding?

But another point may be interesting. From your "say Azure" I gather, ok Sparx does not offer a 'closed cloud'. Any pro cloud installation outside of a corporate network will be on one of the 'open cloud' providers. In that case any customer could choose to install another website of their own (or from a third party) 'side-by-side' with the EA database on that cloud - and let that website access the EA database via SQL. - Is that correctly understood?

4
We have our own web components on top of a local EA repository, where we extract information via SQL. In fact we have a complete website with lots of views for different stakeholders.

Can we do this, if we move EA to sparx' EA cloud solution (with the EA cloud repository being actually in the cloud, not on our own network)?

Anyone having experience with this?

5
Yep, it works fine - thanks again :-)

6
Great.
Thanks a lot, Arshad.
I'll try that as the first thing in the new year (I hope :))

7
How do I open webpage in a browser from an EA JScript.
E.g. I want to add a script to an element's context menu that opens a webpage with specialized documentation views on that element.

8
General Board / Re: No dockable window with table columns?
« on: December 11, 2018, 09:53:51 pm »
The Database Builder...

Thanks, but  :( the Database Builder does not react to select a column on a diagram "like the docked window with class attributes, which synchronizes itself to selecting an attribute in a diagram or in the project browser".
at least, I haven't managed to get it to do that.
With the Database Builder, I have to select Database + select table + select column each time - this is prohibitively tedious and disturbing for the meeting partiipants, when I'm sitting with business people (data stewards, BI analytics, etc.) mapping their implementation views (DB,...) to the conceptual/logical model which carries all the business definitions)
Besides that, the Database Builder takes up an awful lot of screen real estate for that purpose - when the meetings 'fix point' is a diagram.
Then I'm better off using the columns and constraints window - it's just not dockable, which makes it very disturbing in the meeting context, having to pop it up each time.

 

9
General Board / No dockable window with table columns?
« on: December 11, 2018, 12:19:39 am »
I want to have a docked window with table columns - just like the docked window with class attributes, which synchronizes itself to selecting an attribute in a diagram or in the project browser.
Is that not possible? (EA 14, 1427)

Also: in a class on a diagram I can add an attribute with shift+cntrl+F9  - is there no similar function for table columns?


10
Just to make sure, that I haven't missed the feature:

Is it correct, that there is no method in the object model telling which elements (plural) have been selected in the search result?

11
This is great (and, of course, about time  :))
Did you notice - Now you can also have icons on your stereotypes (metatypes) that extends package.
Earlier such icons would only show up in the project browser for elements, not for packages.

13
I cannot find how to publish a package as a UML profile  in EA v. 14.1.1427
I have tried:
Select a UML profile package in project broser
Then I go to ribbon: Specialize / Publish
But only gives me an option of: Publish Diagram as UML Profile (not a package)
I tried it, of course but it actually does only save the diagram as a profile

I also tried the command search and opened the Save UML Profile window but same result

In EA 14.0.1423 it worked (although, as Geert Bellekens told me, I had to have a diagram open )

Has anyone of you succeeded in saving a package as UML profile in EA v. 14.1.1427?

14
General Board / How do I hide derived tagged values?
« on: September 19, 2018, 06:57:45 pm »
In the tagged values pane/window, the derived tagged values are shown below the other tagged values.
This causes confusion and irritates my users.
I haven't found a way to hide them from the pane/window.
Is it not possible to hide these derived tagged values from this pane/window?

15
Yes, that was what I was on my mind from the beginning of this. I don't think it will be changed.
But I also wanted to hear about any work-around or thoughts from Sparx about this for the future - before I made the discussion to use connector direction for reading direction (a decision which will introduce a conventions that brakes the UML semantics - but are feasible for us for the reasons mentioned in the initial post)

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