Communication between applications

[Guest]

I planning to build an order system. It will consist of a server
application and a number of client applications. The sever is responsible
for updating the database and to inform this to all other applications in
the system. For example: A client application wants to update the database
and send data to server, the server update the database and inform all other
client applications about it.

The system is in a intranet, but a user should also be able to create a new
order on the web.

I want some advice about a solution.

 

[Cor Ligthert]

Harry,

I planning to build an order system. It will consist of a server
application and a number of client applications. The sever is responsible
for updating the database and to inform this to all other applications in
the system. For example: A client application wants to update the database
and send data to server, the server update the database and inform all
other
client applications about it.

The system is in a intranet, but a user should also be able to create a
new
order on the web.

My advice for you is to start to search on internet or buy some books about
a multi tier application. That is what you describe.

Although your last sentence is real something that you in my opinion would
have to make more clear for yourself why that is, and if that is real
possible. Think therefore that you have 1000 clients active and 100 are
updating. Just do it without a computer on paper, how would that process of
replying to the other client applications look like.

I hope this helps,

Cor