There are many aspects to consider for ODM & OEM designs. Here is a sample check list of key
parameters normally requried at the start of a new project.

1) Mechanical dimensions
  - LCD
  - PCB
  - Plastic parts - 3D drawings in either .igs, .stp, .dwg are all acceptable
2) Electronic / electrical specs
  - LCD - voltage, duty ratio, LCD image layout [segments, icons, etc]
  - PCB - layout & schematics.
  - EMC & EMI requirements
3) Bill of Materials
4) Special environmental standards
  - IP ratings
  - UL ratings
  - Temp / humidity
  - Drop tests
  - IEC/DIN specifications
5) Programming
  - MCUs or display controllers.
6) Final assembly & test procedures
7) Project Milestones
  - Initial quotation