Re: How to add relationship lines?

[Genadi Saltikov <carmageddon gmail com>]

Hello Steve!

Apologies for not sharing what I found, I thought everyone on the list knows :)

Basically, after dissecting the original .DIA file Hans linked me to, I figured out that the relationships like 1:1, 1:N etc, were defined as properties of the RELATIONSHIP objects!

In my opinion, this is far from trivial, especially that it is not explained in the documentation.

What I meant about cardinality, I have drawn in red color in the following picture, so you can see it without misunderstanding what I mean.
https://www.dropbox.com/s/9asujpcd6o50nve/2013-05-06%2023.43.38.png

Please note how this relationship relates to 3 entities - currently in Dia, I have not found a way to set more than 2.

Finally a small (really small!) thing: When I double click an object to open its properties (usually only to write its name for start), it would make sense that hitting 'Enter' key, would press ok and close the properties window, without switching hand to mouse to do it - it will streamline the initial design phase :)

I hope I've been clear, and provided some constructive ideas/questions :)

Genadi.

On Mon, May 6, 2013 at 11:01 PM, Steve Litt <slitt troubleshooters com> wrote:

On Mon, 6 May 2013 00:22:12 +0300
Genadi Saltikov <carmageddon gmail com> wrote:

> Thanks for the desire to help Alejandro, but this is missing the
> point, I specifically wanted ER Diagrams like here:
> http://img27.imageshack.us/img27/920/20130505111142.jpg

I must be missing something. I do diagrams like that all the time. I
didn't understand your original question, nor the responses of most of
the people, but it sounds to me like you want lines, either straight or
"jaggie" between the boxes, circles, etc. Those are connectors, and
there's an implied connection point in the center of every box,
circle,  etc.

>
> Thankfully, Hans has also replied to me giving me a link to the
> original diagram I missed, and from this I figured out how it works!
> Thanks Hans! :)

So please share. What was the hangup,  and how did you get around it?

>
> Only thing that might be missing (and not sure yet whether it is
> needed, will see later) - is the capability to assign more than just
> left or right "Cardinality", as you call it - what if I want to
> assign a relationship to more than two Cardinalities?

Do you mean which way the arrows go on the lines, or are you talking
about something else, and if so, what?

Thanks

SteveT

Steve Litt                *  http://www.troubleshooters.com/
Troubleshooting Training  *  Human Performance

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