Nerissa,

>Why is it that in the sample ProjMgr of Mere Mortals, the first page contains the data environment object and the business object? While in other pages, it only has a business object and one page has a data environment object only? I'm confused on when do I need to place these two objects or when do I need only one of them and which one.

Actually, the only object on the form is the business object; the data environment is not dropped on the form at design time...it is instantiated dynamically at runtime. What you're seeing is the data environment loader object...it's just that in some cases on this form, the label of the data environment loader is set to the name of the data environment that is loaded by the business object...it's not the actual data environment.

Regards,