1. General Testing Notes

The participating vendors continued the ongoing testing of the CalDAV and CardDAV protocols, focusing on WebDAV sync, issues surrounding vendor-specific CalDAV extensions which needed more clarification, and iMIP recurrence issues.

As usual, participants found and corrected bugs during the course of the interop. This is always beneficial because an organization can have a significant testing environment at their location but when they test outside of their protected domain, unknown issues can bubble up to the surface and be resolved.

Regarding iMIP, it was found that iMIP representations of the text/calendar section that have Content- Disposition: attachment are handled differently by different vendors. If there is Content-Disposition: attachment, then some vendors will attach the iCalendar as a file attachment and others will represent as a workflow item.

With respect to CardDAV, interoperability testing is just really starting and participants noted that the vCard 4 specification in CardDAV was invalid and time was spent discussion and writing changes to the actual specification.

This is exactly why face to face interoperability testing is so beneficial. It is possible to not only uncover issues but then work in a collegial environment to enhance, correct and improve the specifications being tested.