There is a perception among some that MRP is only suitable for standardized products.  With DBA this is not the case at all.  In fact, using MRP is what makes DBA ideal for custom manufacturing of any kind, including engineering to order, remanufacturing, and disassembly.  

One-off BOMs are generated in quotes and are used to customize routing, component, and output details prior to job generation.  When MRP generates the job, custom details are automatically incorporated into the master schedule exactly the same as with standard products.  If job details must be modified during the course of the job, this automatically affects item demand profiles and MRP will respond accordingly with additional supply as needed.