The ORM Foundation

Terry, thanks very much for the clarification. Martin

Hi, I still haven't received my copy of the ORM book so I apologize if this is a stupid question, but is it possible to use ORM to model collections which allow duplicate items? I can imagine list (ordered collection allowing repeating items) being modeled using ternary fact type with the third role player being the order value, but how a bag ...

Hi Ken, Thanks for reply. It's interesting to know how ORM compares in effectiveness with other methodologies. I guess big contributing factors to ORM's efficiency are its intuitiveness and expressiveness. From my (still minimal) experience I can say ORM models seem to model the UoD much more naturaly then UML, E/R etc., and ORM ...

Hi Ken, I've found out about ORM while looking for alternatives to UML, E/R, etc. modeling. It was a documentation for an O/R mapping tool where I saw the NIAM/ORM diagrams for the first time and I really liked their attribute-free approach. I went to Wikipedia to read more about ORM and all related methods and technologies and from there ...

Hi all, This is my first post to this forum. I found about ORM a few weeks ago and still have much to learn. Nevertheless, I'm already pretty sure I found my modeling platform, especially if NORMA continues to be such a great and powerfull companion to the methodology. I'm really looking forward to customizable column order and guid data ...