Hi, On Thu, Feb 19, 2009 at 5:23 AM, Cab Vinton <bibliwho@gmail.com> wrote:
It would be nice if during the import process Koha could check a sequence of matchpoints when checking for duplicate holdings (e.g., first check ISBN, then LCCN, etc.) This is currently not possible, however, right?
You can define multiple matchpoints in an import matching rule. To do this, you start by setting a match threshold. The specific value doesn't matter, but 1000 is a good default. You can then add more multiple match points and assign a numeric score to each. For example, suppose your rule has a threshold of 1000, and you want to consider LCCN, ISBN, and biblios.net record number. The biblios.net ID is stable, so you could trust that it's a good matchpoint and give it a score of 1000 - which means that if there's a match on biblios.net ID, it's enough to identify a record to overlay. Let's say you don't trust the ISBN or LCCN as much, and give each a score of 500. That means that a record doesn't match on biblios.net ID, it would have to match on both ISBN and LCCN to reach the threshold of 1000. Regards, Galen -- Galen Charlton VP, Research & Development, LibLime galen.charlton@liblime.com p: 1-888-564-2457 x709 skype: gmcharlt