1. Sample instance.xml for Book
Books typically won't have any summary of holdings information and subsequently any specific holdings like MFHD etc. Staying consistent with the design, there will be holdings section defined in "oleHoldings" but wont have an "extentOfOwnership" section.
2. Single-Vol-Serial-IU
Holdings information is recorded in the raw marc format. There is no entry for oleHoldings.
3. MultiVolumeMonograph
This instance record uses oleHoldings to record holdings information and has 9 linked items. Its a straight forward record created from data in the current horizon system (Chicago).
4. Boundwith
This is an example where for one instance record there could be multiple bibliographic records.