CalDAV Standards

Real interoperability…

There are a number of key standards that make up the CalDAV protocol. CalDAV is based on WebDAV which is based on HTTP and it uses iCalendar and iTIP for calendar data and calendar operations.

CalDAV

CalDAV Use Cases (CalConnect document)
CalDAV Scheduling Requirements (CalConnect document)

HTTP & WebDAV

iCalendar

iCalendar (RFC 5545) - replaces RFC 2445
iTIP (RFC 5546) - replaces RFC 2446
iMIP (RFC 2447) and (draft-ietf-calsify-rfc2447bis)

Other Useful Calendaring References

Calendaring Glossary (CalConnect document)

Standards are Key

Standards provide interoperability between products, particularly with a client/server protocol.

The Internet Engineering Task Force (IETF) is one of the key organizations that defines the standards used on the internet today. Its specifications for HTTP, WebDAV and iCalendar form the basis of CalDAV.

RFC - these are the formal standard produced by the IETF.

Drafts - these are in-progress specifications.

The IETF has a mailing list for discussion of the CalDAV protocol.