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Home -> Community -> Usenet -> comp.databases.theory -> Re: Relational vs network vs hierarchic databases
"Dan" <guntermann_at_verizon.com> wrote in message news:<MW5kd.951$2h7.843_at_trnddc03>...
<snip>
> Why do we have an OSI model that divides the requirements of communication
> into seven layers, but rarely does a protocol stack consist of 7 layers when
> implemented?
Because the OSI 7-layer model was futzed with to accommodate TCP/IP ? ;)
Don't you end up with the full 7 layers anyway ? Some of the layers are specific to particular applications rather than the general protocol stack, no ?
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