Julien,
Hi. Have you considered using the Web Server as a middle tier layer. The
advantages are:
1. Scalability - just add another server if you need more processing power)
2. Ease of debugging (if you send you data in ASCII format)
3. Really thin client - all you need is a browser
4. Extensibility - write a Java/ActiveX component for use with the client
browser
5. Ease of setup - everything is setup on the Web server - the client only
needs a browser
6. No need to write another module for "web access" to your product.
7. Great reuse of code - just change the HTML to suit different clients.
In this model, all your functionality is on the WebServer. If you need to
upgrade your product, do it on the server, restart the web application and
everyone is upgraded - they can even be live on the network!
Hope this helps,
Dennis.
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Dennis Chuah, BE (Hons) [mailto:[EMAIL PROTECTED]]
Manager, Product Development
Contec Data Systems Ltd. [http://www.contecds.com]
tel: +64-3-3580060 ext-775 fax: +64-3-3588045
> I know this is quite a large and complicated question but I would
> appreciate
> some feedback before we attempt to make a decision...
>
> I know all the propaganda about the advantages of thin client and
> not having
> to install ODBC and BDE, but...
>
> What are the other major benefits of 3-tier client server compared to
> 2-tier? if any?
>
> Does MIDAS simplify or complicate the development?
>
> The Borland blurb on MIDAS talks about putting business logic into the
> middle tier server - this is a bit vague. What exactly do they mean by the
> 'business logic'? How much can you take out of the client?
>
> So really what I want to know is should we use MIDAS as part of our
> redevelopment of our Delphi application to access our SQL 7 server?
>
> We will be using two remote mirrored servers as well.... with a possible
> requirement of remote access in the field and possibly further?
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