Difference Attributes from both projects

Dear PML Experts,

I have a project ABC with only Readaccess DB' I have replicated as XYZ project with Full write Access

ABC Project is keep updating in the backend and I would like to track the changes using a form then idenfy the changes  then DBlist when the changes are identified

I have done some home work and made idea of the form as marked

Now I see challenge is how to get the projects details of ABC and XYZ project with PML