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[EMF Compare] Which version for 4.3M3? [message #986311]

Mon, 19 November 2012 16:14

Ed Willink
Messages: 3183
Registered: July 2009

Senior Member

Hi

Is EMF Compare 2.x yet ready for interactive use on 4.3M3? It is in the
staging repo so I gave it a try, but it reports differences that are
only vaguely correlated with actual differences. Version 1.3.2 for Juno
seems much better.

Regards

Ed Willink

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Re: [EMF Compare] Which version for 4.3M3? [message #986350 is a reply to message #986311]

Tue, 20 November 2012 03:15

Laurent Goubet
Messages: 1548
Registered: July 2009

Senior Member

Ed,

What are differences "vaguely correlated with actual differences"? What kind of models are you comparing? What result do you obtain that is not what you expected?

M3 had a number of known issues when comparing models that did not use IDs of any sort, though it should already yield better results than any of the 1.x builds for most models, even when not using IDs. Most of the 'known' issues have now been resolved, though these improvements aren't yet accessible in an integration build. (You can make an idea for yourself with the test results.)

Laurent Goubet
Obeo

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Re: [EMF Compare] Which version for 4.3M3? [message #986363 is a reply to message #986311]

Tue, 20 November 2012 04:01

Cedric Brun
Messages: 329
Registered: July 2009

Senior Member

Ed, content match is subject to "threshold effect" and we need to tune the algorithm and the ratios so that we provide the comparison the end user expect.

EMF Compare 1.x was quite good in this regard as we tuned it for quite a long time with many examples. 2.x clearly need some more work, but to be as efficient as possible we would need your test data and what you would have expected.

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Re: [EMF Compare] Which version for 4.3M3? [message #986472 is a reply to message #986363]

Tue, 20 November 2012 10:11

Ed Willink
Messages: 3183
Registered: July 2009

Senior Member

Hi

Example files that compare very badly on EMF Compare 2.1 attached to

https://bugs.eclipse.org/bugs/show_bug.cgi?id=394668

Regards

Ed Willink

On 20/11/2012 09:01, Cedric Brun wrote:
> Ed, content match is subject to "threshold effect" and we need to tune
> the algorithm and the ratios so that we provide the comparison the end
> user expect.
>
> EMF Compare 1.x was quite good in this regard as we tuned it for quite
> a long time with many examples. 2.x clearly need some more work, but
> to be as efficient as possible we would need your test data and what
> you would have expected.

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