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Thanks so much Stefan
it worked!

What do you mean by putting all dependencies in a file? Each graph will most likely be on tikz-picture. You need to do manual some work to get the graphs, there is no completely automated version.

What I mean is given this data
S1-->S2, S3
S3-->S1, S4

the program should position the nodes and ...

Thanks Johannes_B
This is what I mean by highlighting

http://live.yworks.com/demobrowser/inde ... aph-Viewer

Also, using Texample, can I just put my dependencies in one file and all the graphs would be built automatically as I keep changing the data ?

I have to build a dependency diagram

There are 5 systems, S1, S2, S3, S4, S5

S1 --> S2 means S1 depends on S2

S1 --> S2, S3, S4

S2 --> S3, S5

S3 --> S2, S5

S4 --> S5

S5 --> S1, S2, S3, S4

How can I build dependency diagram like the one attached?

Also, is it possible that once I click on ...