FINDS / Index, references and numbers...
A find is recorded as relevant of OPE and Context Unit.
A Context unit reference can be a number or anything else (Square AD34, US 24, etc...)
A fully recorded OPE is referenced by a Patriarche code (OA).
If a Patriarche code (OA) is not yet recorded (that is a bad thing) then the reference is of Year+number type.
If the Patriarche code (OA) has not been recorded in OPE then creating CONTEXT UNIT and FINDS, then a red flag reminder must be displayed as it's really not a good thing (but as usual, bad things happened..).
If a Patriarche code is recorded in OA after the creation of CONTEXT-UNIT or FINDS it's not so bad if no listing or label has been printed.
Therefore and to be more precise for finds :
A find must have an unique reference number by context unit (an index not recorded by the user but created by Ishtar),
Usually archaeologist likes to record by material type (Metal, Bone etc...), that can be tricky for composite items or material identification errors, but that's life... and a common process in various archaeological services.
So Ishtar must provide TWO unique (?!? :) ) reference code for FINDS :
- (OPE_code)-(Context unit label)-(Find number)
And (to please archaeologist and for easier packaging management)
- (OPE_code)-(Context unit label)-(Material Code)-(Find number by material code)
If the Patriarche code (OA) has been recorded then the Reference code for a FIND is unique at a national wide scale.
If not, it is unique (Year+index) at a regional or archaeological service scale.