Forum OpenACS Q&A: Response to What is the best way to implement many-to-many relationships between ACS Objects?

Although its worth pointing out that acs-rels is essentially only a mapping table (of general nature)...

I've never been entirely convinced about using acs-rels as the 'catch all' mapping mechanism.... largely cos I'm suspicious about how well this would scale and so forth.....

And (i think) its true to say that the only reason to use acs rels is when you want other acs'ities (such as permissions) to work??

In most cases we implement a separate mapping table. Also, thats not a (good or bad) old thing... thats a pretty standard DB thing to want to do.