Groovy, The best sure-fire method of ensuring they get it right is to have the programmers actually visit a board shop and gather information first hand. IPC-A-600 has some great photographs of all types of printed circuit board imperfections. Many of these are applicable to AOI. I believe, however, the best method for defining names to defect types is to allow the board shop to set its own definitions. This way cause and effect diagrams specific to each shop can be used during root cause analysis based on the results of inspection. This is a method we have added to our Insight/2020 AOI system. It allows our customer to have control of his system. George Murray Gerber Systems ---------- From: TechNet-request To: Technet Subject: FAB: AOI DATABASE TERMS AND DEFS Date: Thursday, March 21, 1996 8:20AM Well....It appears that some AOI equipment databases have the ability to define names associated with defects found. The AOI programmers aren't completely savvy about PCB Fabrication. They need some guidance as to where they may look for some definitions and descriptions. (Maybe also some visuals too) I was thinking maybe IPC-A-600 or IPC-TM-50. Anybody have any suggestions? PS-I want to help these guys or else we may be stuck with something like "munchies" or "pac-man bites". Groovy