Format to transfer job data (incomplete order) from one programm to another. The main difference between LensOrder and JobData is, that with LensOrder complete orders are transfered and JobData is for incomplete orders. JobData is very similar to LensOrder, and will be in the future. Every main part of the JobData structure is optional and there are additional parts like price info, that are not needed for an order, but to transfer job data between programms.