If there is no information for a particular field, or if the default value is desired, the field may be left blank. Fields missing from the end of a record are presumed blank. All names and flags are case insensitive. For things like record tags, mnemonic names, set names, and critical flags, upper and lower case characters are considered identical. Case is preserved only in description and DSC record state text fields.
Names typically have length restrictions.
This master copy will be in the form of a binary image called the ground system operational database. One of our main goals in the design of these record formats was to avoid dictating to spacecraft engineers what database tools they must use. They can make database changes in their preferred environment and produce a set of transaction records to apply against the master database, propagating those changes to the ground computer systems.