>But we've changed the assumptions. At the meeting, the firm assumption >was >that results would be static in the case where a result set name is >supplied. I can't see how that has changed. >> However at this point unknown to us someone adds a new record ..... > >What's the mechanism you envision to add a record? It doesn't fit the >model >as we've discussed so far. Would you only be able to add a record that >conforms to the original query? Sorry, I don't understand you. The someone who adds a new record would be someone who maintains the database, not an end user searching the database. For example in the LC, I presume you have cataloguers adding new bibliographic records? I also suspect that they use the facilities in Endeavour to do this which do not use Z39.50. In the same way many people running a database would use the normal database facilities for updating and maintaining their database, but would add ZNG to offer searching capabilities only. The case I was trying to describe is one where the database is being updated rather than a completely static entitity, hence we need result set names to ensure uniformity (static result sets) between searches where repeating the query may return a different result set due to changes in the underlying data. Matthew