Salam'alaika ya Habibi,,,,,We deliver to you Basis of Design Document. It show you point to point about the concepts that fit to you. 1st, we send you Basis of Design Document with "Issue For Review" status, you can review and send it back to us with your input comment. You can also do rejection of our point(s),,,about some concept that we propose inside Basis of Design Document,,,, that deviate with your interest and need. Just put your input comment on our Basis of Design Document and send it back to us. 2nd, we send you final Basis of Design with "Issue For Design" which is Freezing the Concept. To be our guidance in developing the model. After that, We send you 60% of our Progress for your review. At the end of the day, We send you 100% Progress with "Issue for Approval" and 1 time revision is available, before we finally deliver our "Issue for Completion" to you,,,Wasalam,,