Re: What type of DB model is this?

Ooops - sorry, I sent that previous post by mistake......Here it is in full...

Wolfgang,

Thanks for the slides.

>>Hope that helps to get you confused <<

Yep - succeeded there :-)

I can answer some of the questions you raise below (the ones I know the meaning of):

• number of parallel users It's a single user system. The data would be stored on the user's hard drive or CD.
• number of transactions Very few - not enough to be an issue
• queries Very simple retrieval, based on hierarchical selections.

I don't really want to get into OO or XML as I know nothing about them at the moment - really just a few tips on the data structure I should use. You mention flat files - that may be the best option - anybody got any suggestions for the best way to store my data.

Thanks

Mark

"Wolfgang Keller" <wk_at_objectarchitects.de> wrote in message news:3B7967A5.43E89CE0_at_objectarchitects.de...
> Mark,
>
>
> > I hope this makes some sense. My DB theory is pretty poor (I would
 guess
> > that's obvious). All I am looking for are some tips as to what kind of
 DB
> > model I should be using.
> >
>
> you could use a hierarchical model but this is not real good advice
 because
> depending on
> * number of parallel users
> * number of transactions
> * degree of concurrency
> * keys that the information needs to be accessed with
> * access paths on the data
> * queries
> and quite a few more factors it is questionable whether you should use a
> database
> at all .. you could e.g. also use ..
> * an OODB (which can handle trees and aggregation)
> * or XML files plus some information in a RDB
> * just XML files
> * or flat files and no database
>
> In order to make a solid design for your problem, a designer
> needs to know far more on the dynamics than you have written
> If you need a list of such potential factors have
> a look at the "Tutorial: Choosing Database Technology"
> slides at
> http://www.coldewey.com/publikationen/database.html#DBTechTutorial
>
> Hope that helps to get you confused - but on a higher tech level :-)
>
> Cheers
>
>
> Wolfgang
>
> http://www.objectarchitects.de/
>
Received on Wed Aug 15 2001 - 13:12:20 CEST