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Minutes Minutes CCaallCCoonnnneecctt T H E C A L E N D A R I N G A N D S C H E D U L I N G C O N S O R T I U M Volume 5, Issue 1 February 2012 From the Executive Director Dear Members, Other members the growing role that CalConnect has have also in solving the day-to-day problems Thanks to Apple for drawing 35 stepped up and faced by both vendors and users in member representatives, which volunteered to the calendaring and scheduling included two individual member host upcoming Members space. participants and meetings through autumn of 2013, reps from 14 so the schedule through 2013 stands I would organizations, as follows: particularly call to Cupertino, your attention to California for CalConnect XXIII January 30 – Events a new series we our January 30- Tests February 3, 2012 Apple, are launching in this newsletter— February 3 testing event and Cupertino, California member interviews—designed to Roundtable. Eleven participants give concrete answers to the came exclusively for the CalConnect XXIV May 21-25, question: What does CalConnect’s interoperability test event with 2012 Patricia Egen Consulting, work mean to my business and to my another 10 taking part in both the Chattanooga, Tennessee constituents? In this first interview, testing event and the Roundtable. we get the “benefits and challenges” CalConnect XXV October 1-5, insights from Andrew McMillan, who The continued enthusiasm about our 2012 Google, Zurich, Switzerland conceived of and wrote the DAViCal technical progress is certainly CalDAV Server showing up in the commitment to CalConnect XXVI January 28 – host upcoming February 1, 2013 TBD events. In May, we will head to CalConnect XXVII June 3-7, 201 Chattanooga, University of Wisconsin, Madison, Innovation Tennessee for Wisconsin Dave Thewlis the sessions hosted by Patricia Egen Consulting. CalConnect XXVIII September 30 Later this year, CalConnect will be – October 4, 2013 TBD returning to Europe when Google hosts CalConnect XXV at their As you get quick updates on offices in Zurich, Switzerland, on Technical Committee progress October 1-5, 2012. evidenced in the IOP Test Event report and TC summaries, consider CalConnect XXIV Patricia Egan Consulting Chattanooga, Tennessee Interoperability Test Event May 21 - 23 Roundtable May 23 - 25 Inside this Minutes: • Executive Director’s Letter – page 1 Distinguished Service Award, Member Interview – page 4 • IOP Test Events – page 2 New Member – page 5 • Tech Committees Summaries – page 3 About CalConnect – page 6 M i n u t e s Page 2 C a l C o n n e c t T H E C A L E N D A R I N G A N D S C H E D U L I N G C O N S O R T I U M February 2012 IOP Test Event WebDAV-sync the usual side discussions, in this A number of client/server case on recurrences (in particular combinations tested this protocol. The THISANDFUTURE) and timezones. problems that surfaced were fixed and implementations were upgraded In discussing how to better present to the latest draft of the specification. testing results, it was felt that setting A total of 21 people participated in up a wiki/etherpad for issues as they the test event, which concentrated CalDAV come up would help to build a body of on CalDAV and CardDAV issues This protocol is now fairly mature. knowledge about what had been with related items such as WebDAV There are some newer learned through prior testing events. sync, as well as intensive testing of implementations and they are working iMIP with servers with iMIP gateways their way through the usual issues. In the Update versus Replacement and Microsoft Outlook participation. Etags and ctags seemed to cause BOF, participants addressed update The group also tested timezone some problems for both DAV strategies to serve as alternatives to servers, and discovery, and nearly protocols. the complete replacement approach everyone implemented the Brief currently in place. The desire for a HTTP header at the event. In the CardDAV DIF-style update for iCalendar data course of testing a few small bugs Some of the issues found here are emerged from the discussion on the were discovered and fixed. related more to VCARD than the form of the updates. protocol particularly in how clients Those participating in testing were the make use of various properties. The Autodiscovery BOF covered following: how currently "domain-level" service iMIP discovery involves separate discovery Apple Testing mostly involved servers with for each type of service at a domain Cyrus Daboo an iMIP gateway. In general this (email, chat, calendar, contacts, etc). Rhett Dickson worked fairly well but some problems This adds significant overhead to the Jacob Farkas were discovered in both clients and account discovery process for clients. Jeffrey Harris servers mostly involving all day An alternative would be to have a site Helge Heß events and scheduling organizer advertise all its services in a single Morgen Sagen issues. place and have clients simply get that Wilfredo Sánchez one piece of information. One Paul Seligman Other Issues and Resolutions proposed solution was to use a well- Sean Seguin Some problems were discovered and known HTTP location to advertise Matt Shepherd fixed involving timezone server and autodiscovery document listing Ben Smith interactions. During the session a all the services. Key issues with this Michael Yee number of participants implemented include how much detail needs to go Ralf Becker the (non-standard) "Brief" header into that document (generally as little Carnegie Mellon University which reduces the size of responses as possible) and what format it should Ken Murchison from servers. There was some testing take. Participants agreed to continue Andrew McMillan of discovery implementations. discussions of this and also start Microsoft probing the Internet Engineering Task Mallikarjuna Nimmigadda Discussions Force (IETF) to see what interest in Oracle For first time, participants in the IOP addressing the issues might exist in Ciny Joy Test Event set aside time for BOFS that group. Arnaud Quillaud on update versus replace capability in Rensselaer Polytechnic Institute CalDAV/CardDAV and overall service Mike Douglass, Senior Systems Mike Douglass autodiscovery. These were generally Programmer, Communication & Zimbra felt worthwhile to do, and so the Collaboration Technologies at RPI, Praveen Burgu practice will likely be repeated at the served as Interoperability Testing Mithu Mondal May event. In addition, the group had Event Manager. M i n u t e s Page 3 C a l C o n n e c t T H E C A L E N D A R I N G A N D S C H E D U L I N G C O N S O R T I U M February 2012 Tech Committee Summaries – Roundtable XXIII forward, with a focus on filling out in the IETF vCard working group. additional details. Interest was Some additional properties for more expressed in early implementations for detail auto-scheduling modes were the smart grid work. They concluded it discussed and will be incorporated into might also be useful to document use the next version of the draft. cases for VPOLL. TC TIMEZONE TC CALDAV TC ISCHEDULE The TC presentation covered the state Since the last Roundtable, the Since the last Roundtable, most of the timezone service draft and WebDAV Sync draft has been participants had put their focus on TC- moved on to next steps. The group approved by the IETF and the group CalDAV, so the group had little to concluded they need to restart the submitted the CalDAV managed report. At this Roundtable, they work on registries and data formats. In attachments and CalDAV extensions discussed iSchedule implementations the short term, they have a need for drafts to the IETF. At the Roundtable, currently deployed in private network standard aliases and a way to share the committee discussed further details environments. Several vendors them. A suggestion was made that the on the managed attachments draft and described how they are using group handle queries that allow how they might address attendee iSchedule today to do server-to-server discovery of which timezone applies to changes to attachments, private event operations for handling things such as a location. This will probably become properties and the new user-level user migration from old to new servers, possible once there is a reliable source notifications draft. Efforts going forward enabling freebusy for legacy users with of border information. The committee will involve continued work on new users, and so on. Additional intends to move the specification on to completing managed attachments and discussions addressed SRV Lookups, the next stage in the IETF; they will user-level notifications. webfinger and calendar user address concentrate on the registries and data TC EVENTPUB formats. formats. During the months since the last The committee plans to do robust TC USECASE interoperability testing at the event in Roundtable, the group continued Participants reviewed the final October 2012, anticipating that the key discussions on features that aid event usecases for Event Ownership security and discovery elements of publishing, notably rich text and Changes and Specialized Freebusy, iSchedule will be in place by then. intellectual property issues. During that both now published on the wiki. The period, the committee lost its Chair, TC MOBILE committee will continue to discuss Dan Mendell of dotCal; at the meeting, further use case scenarios that they Discussion centered on the future of they expressed appreciation to Dan for might want to work on in the future. his hard work and enthusiasm. the TC given lack of specific work items for the committee. Ultimately, the TC XML The committee described two major group proposed that the TC be shut In recent months, the group topics for event publishers, rich text down with a statement of its concentrated on finishing the new and multi-language support and accomplishments and comments on CalWS-SOAP specification and spent addressed how they intend to focus on work going on in other TCs that include some time discussing VAVAILABILITY these two issues and try to get results impact on mobile calendaring.