Re: about"Peter Chen"
From: Karel van der Walt <karelvdwalt_at_webmail.co.za>
Date: 29 Sep 2004 03:18:34 -0700
Message-ID: <e743ac89.0409290218.29d91d97_at_posting.google.com>
Date: 29 Sep 2004 03:18:34 -0700
Message-ID: <e743ac89.0409290218.29d91d97_at_posting.google.com>
For me the novel thing was that ER model was originally proposed as
yet another logical i.e. representational model. The use of ER as
conceptual i.e. semantic model with mappings to the prevalent logical
models of relational, hierarchical and network, only followed later.
Another conceptual model would be ORM.
hth