Thanks max for the answer. But I think I created confusion by writing client machine. Actually what I meant to say was that
I am doing development at my computer in my company. After development I have to distribute it to different customers of my company. Those customers have AX installed in their companies but some of them have HRM module and some of them dont have. So my task is develop it in such a way that if customer has HRM module in his AX installation then my code should use some of the HRM tables but if customer AX installation does not include HRM module then my code should use my own tables.

