[erlang-questions] design desicions

jm jeffm@REDACTED
Wed May 2 02:48:58 CEST 2007

If you are coming from an OOP background an idea that may help is to ask
the question "should this be a process?" when you would normally create
a new instance of an object.

In this case, I'd guess that each active user session would be a process
and that there would be one process minding the cars database in an
initial cut of the software.


Aidan Kane wrote:
> I'm another newcomer to Erlang that's having a few difficulties
> understanding how one goes about designing a system from scratch.
> I've been trying to think about it in terms of rebuilding the system I
> currently work on which allows users to purchase vehicles via a web
> interface. At any one time there can easily be 30,000+ vehicles
> available for sale within the system. obviously the standard rules
> like two people can't purchase a vehicle at the same time apply.
> should each vehicle be a process (seems like a lot of processes - very
> few of whom would ever be active at the same time)? if so, how would
> the processes be created? would a process run at system start up to
> create them all?
> would each active user be a process as well?
> Sorry that the question is so general. I'm just having a lot of
> trouble understanding where to start with all this.
> Thanks.
> Aidan.
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