Versioning

Versioning is a tricky thing. Versioning systems usually do not know the semantics of the things they version. The determine differences based on syntactic issues. The question is if a change in the whitespace (e.g. a new blank) should really be treated as a new version.
This sounds like a non-issue. The problem is that there may be simple rules in place which say that each change in the sources has to be tested. The implication is that just a little bit of prettyprinting or fixing spelling in comments is considered a change.
I think we need semantic version control systems going forward .....

Links related to modeling ...

Three existing modeling projects

MOSkitt, Topcased and Papyrus

are currently being merged into one building an Eclipse modeling platform

Visiting the zoo

The atlantic model zoo is currently somehow hard to find as many links to it are broken. It can be found here.

Model versioning ...

At least the following projects look into this topic:
modelcvs
AMOR #1
AMOR #2
anyway ... love is all you need!

Modeling and Versioning

During the modeling symposium at the ESE I explained why I think that versioning for models or elements thereof is a challenge today and that this is a topic which will require more thoughts going forward. Today I saw that Sparx System is looking for input on this topic .

If it is not elegant it is wrong ....

Some time ago I did start to collect quotes related to the topic complexity on my web site. A friend of mine has now suggested to add "if it is not elegant is is wrong". He did hear this phrase often during his studies.
If the essential complexity can be represented in an elegant way, then this makes a problem for sure easier to understand. I don't think that there is always an elegant representation - if there is none, then the problem may still be understood correctly.
Absolutely not true is the opposite - many things are very elegant and also completely wrong. For this I can quote the movie "A beautiful mind" where Nash says "It's elegant, but wrong" to
Alicia Larde about her work. Nevertheless she does marry him later on.

Barbarian Hordes

Have a look at Pat Helland's blog and have some fun with Transaction Processing and the Barbarian Hordes.