many-to-many relationship class

Pía_ZenaidaVirginia — Fri, 18 Jun 2010 15:27:18 GMT

There is a fundamental criteria to decide who is the origin Feature Class/Table and who is the destination Feature Class/Table, in a many-to-many relationship class?

I don´t understand clearly this situation.

Thanks

Virginia

Re: many-to-many relationship class

MilesWacker — Fri, 18 Jun 2010 19:52:54 GMT

Think of it as independent and dependant variables... If you were to graph the data what would be the x and what would be the y. That may not be straightforward in a lot of cases.

Here's a quick example, European Countries may have membership in many internation organizations (EU, Nato, etc.) and Organizations have many European Countries as members. In this case I would use Countries as Origin since a County can exist independently from the organization, whereas the organization is dependent upon a county belonging to it. Hope that helps.

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many-to-many relationship class

Re: many-to-many relationship class