DLF Fall Forum
Baltimore, October 25-27, 2004
30
Invalid Data Values
•Invalid values in DRS metadata
– DRS reports “” (zero-length string) as the value for image X and/or Y resolution
–SIP control file contains empty element “<xres></xres>”
–Empty element is interpreted by loader is a zero-length string, not null
–SIP control file defined by DTD, not a Schema that would permit numeric typing of the <xres> element
•Error in DRS loader, not the objects themselves