DLF Spring 2006
MIT's CWSpace
15
Object Models
•Mapping one world to another
•Content Package design considerations
•Use, re-use, subsequent dissemination
•OCW
•DSpace
•SIP
•DIP
•…
•…
…where the Content Package now becomes the OAIS Reference Model's SIP and DIP, more of a repository view of the material

In fact, one key Use Case is simply the Round Trip back to OCW, so consideration of the DIP is important to that (it's effectively also round-trippable (by definition) to DSPace DSpace)

Other use cases might involve other systems wanting different levels of aggregation, organization, and types of descriptive metadata.