CB OOP & 3 Tier Architecture- Definitions

Author: Geof whitham

Posted: 1999-02-13 at 12:56:33

Hi one and all,

This is a general question, related to the theoretical organization of OOP and CB.

Not being in the centre of the Coding community this may seem an odd question but I am not sure of the distinctions between USER Services, BUSINESS Services and Data services.

By way of example....

USER or BUSINESS

In the CB world Is a Combobox in a bizobj Proper to a user service or a Business Service. If this same cbo is directly in a formobj is its theoretical classification different.

BUSINESS or USER

Are CB's BizObjs BUSINESS services or USER services as they are the interface between the underlying data and the user.

Should Classes like "MySpecialProxyListBox" be classified as a User Class or a Business class as it would presumably be the interface to the user but located in a bizobj.

BUSINESS or DATA

As business object undertake the creation and saving of the views data in CB are they Data services or Business services.

This may seem "OLD Hat to many of you but I am playing "Catchup"

Thanks in advance to all you theoreticians

Geof Whitham

Penang,Malaysia

©1999 Geof whitham