The Digital Curation Centre has released the Draft DCC Curation Lifecycle Model for comment by February 29, 2008. Further information about the model can be found in "Draft DCC Curation Lifecycle Model" from the latest issue of the International Journal of Digital Curation.
Here's an excerpt from the announcement:
The model provides a generic graphical high-level overview of the stages required for successful curation and preservation of digital material from initial conceptualisation. The Digital Curation Centre will shortly start to use this draft model to ensure that information, services and advisory material cover all areas of the lifecycle.