Home » Modeling » UML2 » UML diagram for model AND metamodel in MDA?
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| Re: UML diagram for model AND metamodel in MDA? [message #1724367 is a reply to message #1724356] |
Tue, 23 February 2016 11:40   |
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Hi, Michael,
I'm not sure I understand the question. Metamodeling is a restricted
case of modeling, in which you design the structure of models. That
uses only concepts of class, property, association, operation, and a
few others from the UML. It happens to be the subset that maps to
EMF's Ecore (rather deliberately) and, in the Eclipse implementation of
UML, metamodeling with UML does imply a translation to Ecore in order
to implement models based on your metamodel.
So, with the Eclipse tools, you can certainly use UML for definition of
a metamodel and then create an EMF generator model from your metamodel
to generate its implementation. This is exactly how the Eclipse UML
implementation, itself, is generated.
HTH,
Christian
On 2016-02-23 10:53:46 +0000, Michael Zach said:
> Hello,
>
> following an MDA/MDSD approach, is it possible in Eclipse to have
> metamodel AND model both represented in UML?
>
> All tutorials (using QVT and XPAND) were only having the metamodel in
> EMF also visualized as UML diagram, but the model then was just filled
> in bare Ecore tools.
>
> Is there another way while still using QVT/XPAND?
>
> Kind regards
> Michael
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| Re: UML diagram for model AND metamodel in MDA? [message #1725210 is a reply to message #1724367] |
Tue, 01 March 2016 17:28 |
 Michael Zach
Messages: 7
Registered: November 2015 |
Junior Member |
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Hello Christian! Hello Ed!
> UML provides a design / specification of your system; not an implementation.
Yes of course. In my case the "metamodel" is the specification for the "model".
My problem is not to get some Java/C++ code at the end, but another Editor which is capable of defining a model in it following the constraints defined in the metamodel.
Hope my emplanation is confusing enough ;o)
> So, with the Eclipse tools, you can certainly use UML for definition of
> a metamodel and then create an EMF generator model from your metamodel
> to generate its implementation. This is exactly how the Eclipse UML
> implementation, itself, is generated.
Yes, this is exactly what I did.
I was just wondering, if there is an alternative/option for the generation of the implementation of the EMF generator model. Because all I get at the end is a property/value kind of editor which of course implements the classes, properties, constraints etc. of the metamodel.
What I was looking for was a way to get a graphical UML class diagram - style editor for the model at the end. That was what I was heading for:
* define an UML class diagram for the metamodel
* create an EMF generator model from it
* implement the metamodel and
* get a UML class diagram editor (kind of) where I can now graphically define the model (instead of having this tree/detail editor where I can only fill in the property/value pairs)
Hope you know what I mean.
I have now heard about GMF, but I am not sure if I can tweak it to really get UML style diagrams.
Thank you
Michael
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| Re: UML diagram for model AND metamodel in MDA? [message #1725216 is a reply to message #1725210] |
Tue, 01 March 2016 18:55 |
Ed Willink
Messages: 7655
Registered: July 2009 |
Senior Member |
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Hi
For UML-like custom diagrams you probably want Sirius.
For genuinely UML diagrams you probably want Papyrus.
(Both of which use GMF behind the scenes.)
Regards
Ed Willink
On 01/03/2016 17:28, Michael Zach wrote:
> Hello Christian! Hello Ed!
>
>> UML provides a design / specification of your system; not an
>> implementation.
>
> Yes of course. In my case the "metamodel" is the specification for the
> "model".
> My problem is not to get some Java/C++ code at the end, but another
> Editor which is capable of defining a model in it following the
> constraints defined in the metamodel.
> Hope my emplanation is confusing enough ;o)
>
>
>> So, with the Eclipse tools, you can certainly use UML for definition of
>> a metamodel and then create an EMF generator model from your metamodel
>> to generate its implementation. This is exactly how the Eclipse UML
>> implementation, itself, is generated.
>
> Yes, this is exactly what I did.
>
> I was just wondering, if there is an alternative/option for the
> generation of the implementation of the EMF generator model. Because
> all I get at the end is a property/value kind of editor which of
> course implements the classes, properties, constraints etc. of the
> metamodel.
> What I was looking for was a way to get a graphical UML class diagram
> - style editor for the model at the end. That was what I was heading for:
> * define an UML class diagram for the metamodel
> * create an EMF generator model from it
> * implement the metamodel and
> * get a UML class diagram editor (kind of) where I can now graphically
> define the model (instead of having this tree/detail editor where I
> can only fill in the property/value pairs)
>
> Hope you know what I mean.
>
>
> I have now heard about GMF, but I am not sure if I can tweak it to
> really get UML style diagrams.
>
> Thank you
> Michael
>
>
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