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Subject: Public review for WS-Calendar Minimal PIM-Conformant Schema V1.0 - ends February 18th

OASIS members and other interested parties, 

The OASIS Web Services Calendar (WS-Calendar) TC [1] members have recently approved a Committee Specification Draft (CSD) and submitted it for 30-day public review:

WS-Calendar Minimal PIM-Conformant Schema Version 1.0
Committee Specification Draft 01 / Public Review Draft 01
18 December 2015


The WS-Calendar MIN is a WS-Calendar conformant schema optimized for use in machine-to-machine (M2M) schedule negotiations. 

iCalendar (RFC5545) and its peer specification XCAL (also in WS-Calendar 1.0) is a well-known and long used means to convey schedule-related information. iCalendar makes extensive use of extension and recursion. The WS-Calendar Platform Independent Model (PIM) constrains iCalendar and defines a simpler information model which shares iCalendar semantics and can be used to create 
as the common basis for any number of Platform Specific Models (PSMs). 

Because an information model is abstract, it can apply to many transmission and serialization schemas. The PIM itself does not include a transmission and serialization schema. Through transitive conformance such PSMs themselves conform to WS-Calendar. The Minimal PIM-Conformant (MIN) schema defines an XML Schema that conforms just with the PIM. MIN can be used by itself or as a seed-schema for other specifications.  

Public Review Period:

The public review starts 20 January 2016 at 00:00 UTC and ends 18 February 2016 at 23:59 UTC. 

This is an open invitation to comment. OASIS solicits feedback from potential users, developers and others, whether OASIS members or not, for the sake of improving the interoperability and quality of its technical work.

Reviewers may provide comments directly from the comment-tag version of document. The file


contains the HTML version of the draft with a “[comment?]” link next to each section heading. Clicking on this link will launch your email application and begin a message to ws-calendar-comment@lists.oasis-open.org with the specific section number and title in the subject line. Simply enter your comment and click send.

Note that you must be subscribed to the comment mailing list before sending feedback. Instructions on how to subscribe can be found at https://www.oasis-open.org/committees/comments/index.php?wg_abbrev=ws-calendar.


The prose specification document and related files are available here:

PDF (Authoritative):


HTML with inline tags for direct commenting:

Editable source: 

ZIP distribution file (complete):

For your convenience, OASIS provides a complete package of the prose document and related files in a ZIP distribution file. You can download the ZIP file here:


Additional information about the specification and the OASIS Web Services Calendar (WS-Calendar) TC can be found at the TC's public home page:


Comments may be submitted to the TC by any person through the use of the OASIS TC Comment Facility which can be used by following the instructions on the TC's "Send A Comment" page, or directly at:


Comments submitted by TC non-members for this work and for other work of this TC are publicly archived and can be viewed at:


All comments submitted to OASIS are subject to the OASIS Feedback License, which ensures that the feedback you provide carries the same obligations at least as the obligations of the TC members. In connection with this public review of "WS-Calendar Minimal PIM-Conformant Schema Version 1.0", we call your attention to the OASIS IPR Policy [2] applicable especially [3] to the work of this technical committee. All members of the TC should be familiar with this document, which may create obligations regarding the disclosure and availability of a member's patent, copyright, trademark and license rights that read on an approved OASIS specification. 

OASIS invites any persons who know of any such claims to disclose these if they may be essential to the implementation of the above specification, so that notice of them may be posted to the notice page for this TC's work.

========== Additional references:

[1] OASIS Web Services Calendar (WS-Calendar) TC

[2] http://www.oasis-open.org/who/intellectualproperty.php

[3] http://www.oasis-open.org/committees/ws-calendar/ipr.php
Non-Assertion Mode 


Chet Ensign
Director of Standards Development and TC Administration 
OASIS: Advancing open standards for the information society

Primary: +1 973-996-2298
Mobile: +1 201-341-1393 

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