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Network Working Group                                             C. Joy
Internet-Draft                                                    Oracle
Intended status: Standards Track                                C. Daboo
Expires: January 10, 2011                                     Apple Inc.
                                                             M. Douglass
                                                                     RPI
                                                            July 9, 2010


    Schema for representing resources for calendaring and scheduling
                                services
                      draft-cal-resource-schema-01

Abstract

          This specification describes a schema for representing
   resources for calendaring and scheduling.        A resource in the
   scheduling context is any shared entity that can be scheduled by a
   calendar user, but does not control its own attendance status.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 10, 2011.

Copyright Notice

   Copyright (c) 2010 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must



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   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  5
   2.  Conventions Used in This Document  . . . . . . . . . . . . . .  5
   3.  Resource Object  . . . . . . . . . . . . . . . . . . . . . . .  5
     3.1.  LDAP Resource ObjectClass Definition . . . . . . . . . . .  5
   4.  Resource Attributes  . . . . . . . . . . . . . . . . . . . . .  6
     4.1.  Common Name  . . . . . . . . . . . . . . . . . . . . . . .  6
       4.1.1.  LDAP Attribute Definition  . . . . . . . . . . . . . .  6
       4.1.2.  VCard Property Definition  . . . . . . . . . . . . . .  6
     4.2.  Kind . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
       4.2.1.  LDAP Attribute Definition  . . . . . . . . . . . . . .  7
       4.2.2.  VCard Property Definition  . . . . . . . . . . . . . .  7
     4.3.  Unique ID  . . . . . . . . . . . . . . . . . . . . . . . .  7
       4.3.1.  LDAP Attribute Definition  . . . . . . . . . . . . . .  7
       4.3.2.  VCard Property Definition  . . . . . . . . . . . . . .  8
     4.4.  Nick Name  . . . . . . . . . . . . . . . . . . . . . . . .  8
       4.4.1.  LDAP Attribute Definition  . . . . . . . . . . . . . .  8
       4.4.2.  VCard Property Definition  . . . . . . . . . . . . . .  8
     4.5.  Description  . . . . . . . . . . . . . . . . . . . . . . .  8
       4.5.1.  LDAP Attribute Definition  . . . . . . . . . . . . . .  8
       4.5.2.  VCard Property Definition  . . . . . . . . . . . . . .  9
     4.6.  Organizational Unit  . . . . . . . . . . . . . . . . . . .  9
       4.6.1.  LDAP Attribute Definition  . . . . . . . . . . . . . .  9
       4.6.2.  VCard Property Definition  . . . . . . . . . . . . . .  9
     4.7.  Categories . . . . . . . . . . . . . . . . . . . . . . . .  9
       4.7.1.  LDAP Attribute Definition  . . . . . . . . . . . . . .  9
       4.7.2.  VCard Property Definition  . . . . . . . . . . . . . . 10
     4.8.  Group Member . . . . . . . . . . . . . . . . . . . . . . . 10
       4.8.1.  LDAP Attribute Definition  . . . . . . . . . . . . . . 10
       4.8.2.  VCard Property Definition  . . . . . . . . . . . . . . 10
     4.9.  Admittance Info  . . . . . . . . . . . . . . . . . . . . . 10
       4.9.1.  LDAP ObjectClass Definition  . . . . . . . . . . . . . 10
       4.9.2.  Restricted Access  . . . . . . . . . . . . . . . . . . 11
         4.9.2.1.  LDAP Attribute Definition  . . . . . . . . . . . . 11
         4.9.2.2.  VCard Property Definition  . . . . . . . . . . . . 11
       4.9.3.  Admittance Info URL  . . . . . . . . . . . . . . . . . 11
         4.9.3.1.  LDAP Attribute Definition  . . . . . . . . . . . . 12
         4.9.3.2.  VCard Property Definition  . . . . . . . . . . . . 12
     4.10. Accessibility  . . . . . . . . . . . . . . . . . . . . . . 12
       4.10.1. LDAP Attribute Definition  . . . . . . . . . . . . . . 12
       4.10.2. VCard Property Definition  . . . . . . . . . . . . . . 13
     4.11. Capacity . . . . . . . . . . . . . . . . . . . . . . . . . 13
       4.11.1. LDAP Attribute Definition  . . . . . . . . . . . . . . 13



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       4.11.2. VCard Property Definition  . . . . . . . . . . . . . . 14
     4.12. Inventory Info . . . . . . . . . . . . . . . . . . . . . . 14
       4.12.1. LDAP ObjectClass Definition  . . . . . . . . . . . . . 14
       4.12.2. Inventory List . . . . . . . . . . . . . . . . . . . . 14
         4.12.2.1. LDAP Attribute Definition  . . . . . . . . . . . . 15
         4.12.2.2. VCard Property Definition  . . . . . . . . . . . . 15
       4.12.3. Inventory URL  . . . . . . . . . . . . . . . . . . . . 15
         4.12.3.1. LDAP Attribute Definition  . . . . . . . . . . . . 15
         4.12.3.2. VCard Property Definition  . . . . . . . . . . . . 16
     4.13. Owner Info . . . . . . . . . . . . . . . . . . . . . . . . 16
       4.13.1. LDAP Attribute Definition  . . . . . . . . . . . . . . 16
       4.13.2. VCard Property Definition  . . . . . . . . . . . . . . 16
     4.14. Resource Manager Info  . . . . . . . . . . . . . . . . . . 17
       4.14.1. LDAP Attribute Definition  . . . . . . . . . . . . . . 17
       4.14.2. VCard Property Definition  . . . . . . . . . . . . . . 17
     4.15. Calendar URL . . . . . . . . . . . . . . . . . . . . . . . 17
       4.15.1. LDAP Attribute Definition  . . . . . . . . . . . . . . 18
       4.15.2. VCard Property Definition  . . . . . . . . . . . . . . 18
     4.16. FreeBusy URL . . . . . . . . . . . . . . . . . . . . . . . 18
       4.16.1. LDAP Attribute Definition  . . . . . . . . . . . . . . 18
       4.16.2. VCard Property Definition  . . . . . . . . . . . . . . 18
     4.17. Scheduling Address . . . . . . . . . . . . . . . . . . . . 18
       4.17.1. LDAP Attribute Definition  . . . . . . . . . . . . . . 19
       4.17.2. VCard Property Definition  . . . . . . . . . . . . . . 19
     4.18. Time Zone  . . . . . . . . . . . . . . . . . . . . . . . . 19
       4.18.1. LDAP Attribute Definition  . . . . . . . . . . . . . . 19
       4.18.2. VCard Property Definition  . . . . . . . . . . . . . . 20
     4.19. Multiple Bookings  . . . . . . . . . . . . . . . . . . . . 20
       4.19.1. LDAP Attribute Definition  . . . . . . . . . . . . . . 20
       4.19.2. VCard Property Definition  . . . . . . . . . . . . . . 20
     4.20. Maximum Instances  . . . . . . . . . . . . . . . . . . . . 20
       4.20.1. LDAP Attribute Definition  . . . . . . . . . . . . . . 21
       4.20.2. VCard Property Definition  . . . . . . . . . . . . . . 21
     4.21. BookingWindow Start  . . . . . . . . . . . . . . . . . . . 21
       4.21.1. LDAP Attribute Definition  . . . . . . . . . . . . . . 22
       4.21.2. VCard Property Definition  . . . . . . . . . . . . . . 22
     4.22. BookingWindow End  . . . . . . . . . . . . . . . . . . . . 22
       4.22.1. LDAP Attribute Definition  . . . . . . . . . . . . . . 23
       4.22.2. VCard Property Definition  . . . . . . . . . . . . . . 23
     4.23. Scheduling Approval Info . . . . . . . . . . . . . . . . . 23
       4.23.1. LDAP ObjectClass Definition  . . . . . . . . . . . . . 23
       4.23.2. Auto accept  . . . . . . . . . . . . . . . . . . . . . 24
         4.23.2.1. LDAP Attribute Definition  . . . . . . . . . . . . 24
         4.23.2.2. VCard Property Definition  . . . . . . . . . . . . 24
       4.23.3. Approval Info URL  . . . . . . . . . . . . . . . . . . 24
         4.23.3.1. LDAP Attribute Definition  . . . . . . . . . . . . 25
         4.23.3.2. VCard Property Definition  . . . . . . . . . . . . 25
       4.23.4. Scheduling Admin Contact . . . . . . . . . . . . . . . 25



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         4.23.4.1. LDAP Attribute Definition  . . . . . . . . . . . . 26
         4.23.4.2. VCard Property Definition  . . . . . . . . . . . . 26
     4.24. Cost . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
       4.24.1. LDAP ObjectClass Definition  . . . . . . . . . . . . . 26
       4.24.2. Nocost . . . . . . . . . . . . . . . . . . . . . . . . 27
         4.24.2.1. LDAP Attribute Definition  . . . . . . . . . . . . 27
         4.24.2.2. VCard Property Definition  . . . . . . . . . . . . 27
       4.24.3. Cost URL . . . . . . . . . . . . . . . . . . . . . . . 27
         4.24.3.1. LDAP Attribute Definition  . . . . . . . . . . . . 28
         4.24.3.2. VCard Property Definition  . . . . . . . . . . . . 28
     4.25. Related  . . . . . . . . . . . . . . . . . . . . . . . . . 28
       4.25.1. LDAP Attribute Definition  . . . . . . . . . . . . . . 28
       4.25.2. VCard Property Definition  . . . . . . . . . . . . . . 29
   5.  Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
     5.1.  LDAP Examples  . . . . . . . . . . . . . . . . . . . . . . 29
       5.1.1.  Location Resource  . . . . . . . . . . . . . . . . . . 29
       5.1.2.  Role Resources Group . . . . . . . . . . . . . . . . . 30
     5.2.  VCard Examples . . . . . . . . . . . . . . . . . . . . . . 30
       5.2.1.  Location Resource  . . . . . . . . . . . . . . . . . . 30
       5.2.2.  Role Resources Group . . . . . . . . . . . . . . . . . 31
   6.  Security Considerations  . . . . . . . . . . . . . . . . . . . 32
   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 32
   8.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 33
   9.  Normative References . . . . . . . . . . . . . . . . . . . . . 33



























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1.  Introduction

           This specification defines a schema for representing
   resources to ease the discovery and scheduling of resources between
   any calendar client and server.
           The Object model chosen is the lowest common denominator to
   adapt for LDAP.

2.  Conventions Used in This Document

          The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL
   NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in
   this document are to be interpreted as described in [RFC2119].

3.  Resource Object

      A resource object definition should contain all information
   required to find and schedule the right resource.    For this, it
   should contain all, or a set of the attributes described in
   Section 4.    The cn attribute, described in Section 4.1 MUST be
   present in any resource object.    Additional proprietary attributes
   may be defined as well, but must begin with "X-".  Clients
   encountering attributes they don't know about must ignore them.

      This document specifies whether a given Attribute or Property is
   required for a query to find the right resource, or is used to just
   give additional information during scheduling of the resource.
      Attributes or Properties required to contact the resource are not
   included in this specification.    LDAP attributes defined in
   [RFC4519] and VCARD properties defined in vCard Format Specification
   [I-D.ietf-vcarddav-vcardrev] can be used to include contact
   information for the resource.

3.1.  LDAP Resource ObjectClass Definition

        In LDAP, a resource object SHOULD be defined as an objectclass
   with attributes as defined in Section 4.  This objectClass MUST be an
   auxiliary class.  Its Superior class is the calEntry objectClass as
   defined in Section 2.4.3.1 of [RFC2739].
   Definition of the CalendarResource ObjectClass:











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       ( 1.3.6.1.1.x.1.1
         NAME 'CalendarResource'
         DESC 'Calendar Resource Object Class'
         SUP calEntry
         AUXILIARY
         MUST (cn)
         MAY (kind $ nickname $ description $ ou $ categories $ member $
              uniquemember $ accessabilityurl $ capacity $ owner $
              resourcemanager $ timezoneid $ multiplebookings $
              maxinstances $ bookingwindowstart $ bookingwindowend $
              vcarduid $ related) )



4.  Resource Attributes

4.1.  Common Name

   Description:
          Full name of the resource.  This attribute MUST be defined for
   a resource object.

   ValueType:
          String value.

   Example value:
          Room One

4.1.1.  LDAP Attribute Definition

          cn attribute as defined in Section 2.3 of [RFC4519].  This
   attribute MUST be present in a CalendarResource object.

4.1.2.  VCard Property Definition

          FN property as defined in Section 7.2.1 of
   [I-D.ietf-vcarddav-vcardrev].

4.2.  Kind

          Description:
          The kind of object represented.

   ValueType:
          Some of the possible values are "Location", "Thing", or
   "Group".
          Location is used for any physical location resource such as
   room, building, etc.



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          Thing is used for any physical object that can scheduled like
   projector, printer, etc.
          Group is used to specify a group of resources with a specific
   skill set.  For example: drivers, electricians, etc.

   Example value:
          Location

4.2.1.  LDAP Attribute Definition

   Definition of the kind LDAP attribute:

       ( 1.3.6.1.1.x.0.1
         NAME 'Kind'
         DESC 'Kind of Object'
         EQUALITY caseIgnoreMatch
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
         SINGLE-VALUE )

4.2.2.  VCard Property Definition

          Property KIND that specifies the kind of object represented,
   as defined in Section 6.1.5 of [I-D.ietf-vcarddav-vcardrev].

4.3.  Unique ID

   Description:
          A Unique Identifier.

   ValueType:
          Single string value.

   Example value:
          room1-id1

4.3.1.  LDAP Attribute Definition

       Definition of the vcarduid LDAP attrribute:

       ( 1.3.6.1.1.x.0.1
         NAME 'VcardUid'
         DESC 'VCard UniqueID'
         EQUALITY caseExactMatch
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
         SINGLE-VALUE )






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4.3.2.  VCard Property Definition

          UID property as defined in Section 6.7.7 of
   [I-D.ietf-vcarddav-vcardrev].

4.4.  Nick Name

   Description:
          A short or popular name for the resource.

   ValueType:
          String value.

   Example value:
          TheOne

4.4.1.  LDAP Attribute Definition

   Definition of the nickname LDAP attribute:

       ( 1.3.6.1.1.x.0.2
         NAME 'NickName'
         DESC 'Nick Name'
         EQUALITY caseIgnoreIA5Match
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 )

4.4.2.  VCard Property Definition

          NICKNAME property as defined in Section 7.2.3 of
   [I-D.ietf-vcarddav-vcardrev].

4.5.  Description

   Description:
          Description of the resource.

   ValueType:
          String value.

   Example value:
          Room 1 in Building X

4.5.1.  LDAP Attribute Definition

          description attribute as defined in Section 2.5 of [RFC4519].






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4.5.2.  VCard Property Definition

          NOTE property as defined in Section 7.7.2 of
   [I-D.ietf-vcarddav-vcardrev].

4.6.  Organizational Unit

   Description:
          Organizations the resource belongs to.

   ValueType:
          String value.

   Example value:
          EngineeringDepartment

4.6.1.  LDAP Attribute Definition

          ou attribute as defined in Section 2.20 of [RFC4519].

4.6.2.  VCard Property Definition

          ORG property as defined in Section 7.6.4 of
   [I-D.ietf-vcarddav-vcardrev].

4.7.  Categories

   Description:
          Categories the resource falls under or tags for easy discovery
   of the resource.

   ValueType:
          String value.

   Example value:
          Rooms, EngineeringResources

4.7.1.  LDAP Attribute Definition

   Definition of the categories LDAP attrribute:

       ( 1.3.6.1.1.x.0.3
         NAME 'Categories'
         DESC 'Categories'
         EQUALITY caseIgnoreIA5Match
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 )





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4.7.2.  VCard Property Definition

          CATEGORIES property as defined in Section 7.7.1 of
   [I-D.ietf-vcarddav-vcardrev].

4.8.  Group Member

   Description:
          List of unique resources in a group of resources object.

   ValueType:
          URL value.

   Example value:
          http://www.example.com/printer1.html
          http://www.example.com/printer2.html

4.8.1.  LDAP Attribute Definition

   member attribute as defined in Section 2.17 or uniquemember attribute
   as defined in Section 2.40 of [RFC4519].

4.8.2.  VCard Property Definition

          MEMBER property as defined in Section 7.6.5 of
   [I-D.ietf-vcarddav-vcardrev].

4.9.  Admittance Info

   Description:
          Information required to gain access to the resource.

   ValueType:
          Object value.

4.9.1.  LDAP ObjectClass Definition

   Definition of the admittanceinfo LDAP objectclass:

       ( 1.3.6.1.1.x.1.2
         NAME 'AdmittanceInfo'
         DESC 'Calendar Resource Admittance Info Class'
         SUP CalendarResource
         AUXILIARY
         MAY (admittanceurl $ restricted) )






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4.9.2.  Restricted Access

   Description:
              Is access to the resource restricted?

   ValueType:
              Boolean value.

   Example value:
              TRUE

4.9.2.1.  LDAP Attribute Definition

   Definition of the restricted LDAP attrribute:

       ( 1.3.6.1.1.x.0.4
         NAME 'Restricted'
         DESC 'Access Restricted'
         EQUALITY booleanMatch
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 )

4.9.2.2.  VCard Property Definition

              Purpose: To specify if access is restricted or not.


              Type value: A single boolean value.

              Cardinality: (0,1)

             ABNF:
             RESTRICTEDACCESS-param = ; no parameter allowed
             RESTRICTEDACCESS-value = boolean

             Example:
               RESTRICTEDACCESSS:TRUE

4.9.3.  Admittance Info URL

   Description:
              URL pointing to complete information for accessing the
   resource including getting accessibility rights, special entrances,
   and so on.

   ValueType:
              URL value.

   Example value:



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              http://www.example.com/room1_admittance.html

4.9.3.1.  LDAP Attribute Definition

   Definition of the admittanceurl LDAP attrribute:

       ( 1.3.6.1.1.x.0.5
         NAME 'AdmittanceURL'
         DESC 'Cal Resource Admittance Info URL'
         EQUALITY caseIgnoreIA5Match
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 )

4.9.3.2.  VCard Property Definition

              Purpose:  To specify URL pointing to Admission
   Information.

              Type value: URI.

              Cardinality: (0,n)

             ABNF:
             ADMISSIONINFO-param = "VALUE=uri" / any-param
             ADMISSIONINFO-value = uri

             Example:
               ADMISSIONINFO:http://www.example.com/
   room1_admittance.html

4.10.  Accessibility

   Description:
          Special resource accessibility info for the physically
   disabled.

   ValueType:
          URL value.

   Example value:
          http://www.example.com/room1_specialaccess.html

4.10.1.  LDAP Attribute Definition

   Definition of the accessabilityurl LDAP attrribute:







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       ( 1.3.6.1.1.x.0.6
         NAME 'AccessabilityURL'
         DESC 'Cal Resource Accessability Info URL'
         EQUALITY caseIgnoreIA5Match
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 )

4.10.2.  VCard Property Definition

              Purpose:  To specify URL pointing to Disabled Access
   Information.

              Type value: URI.

              Cardinality: (0,n)

             ABNF:
             ACCESSABILITYINFO-param = "VALUE=uri" / any-param
             ACCESSABILITYINFO-value = uri

             Example:
               ACCESSABILITYINFO:http://www.example.com/
   room1_specialaccess.html

4.11.  Capacity

   Description:
          Capacity of the resource.

   ValueType:
          Integer.

   Example value:
          10

4.11.1.  LDAP Attribute Definition

   Definition of the capacity LDAP attrribute:

       ( 1.3.6.1.1.x.0.7
         NAME 'Capacity'
         DESC 'Cal Resource Capacity'
         EQUALITY caseIgnoreIA5Match
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 )








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4.11.2.  VCard Property Definition

              Purpose:  To specify Capacity Information.

              Type value: integer.

              Cardinality: (0,n)

             ABNF:
             CAPACITY-param = "VALUE=integer" / any-param
             CAPACITY-value = integer

             Example:
               CAPACITY:10

4.12.  Inventory Info

   Description:
          Information on resources available as part of this resource.


   ValueType:
          Object value.

4.12.1.  LDAP ObjectClass Definition

   Definition of the inventoryinfo LDAP attrribute:

       ( 1.3.6.1.1.x.1.3
         NAME 'InventoryInfo'
         DESC 'Calendar Resource Inventory Info Class'
         SUP CalendarResource
         AUXILIARY
         MAY (inventorylist $ inventoryurl) )

4.12.2.  Inventory List

   Description:
          List of resources available as part of this resource.

   ValueType:
          String value.  One or more text values separated by a COMMA
   character.

   Example value:
          Printer, Projector





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4.12.2.1.  LDAP Attribute Definition

   Definition of the inventorylist LDAP attrribute:

       ( 1.3.6.1.1.x.0.8
         NAME 'InventoryList'
         DESC 'Inventory List'
         EQUALITY caseIgnoreIA5Match
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 )

4.12.2.2.  VCard Property Definition

              Purpose:  List the resources available as part of this
   resource.

              Type value: One or more text values separated by a COMMA
   character      (ASCII decimal 44).


              Cardinality: (0,n)

             ABNF:
             INVENTORYLIST-param = "VALUE=text" / any-param
             INVENTORYLIST-value = text

             Example:
               INVENTORYLIST:projector, phone

4.12.3.  Inventory URL

   Description:
          A URL pointing to other resource URLs part of this resource.


   ValueType:
          URL value.

   Example value:
          http://www.example.com/room1_inventory.html

4.12.3.1.  LDAP Attribute Definition

   Definition of the inventoryurl LDAP attrribute:

       ( 1.3.6.1.1.x.0.9
         NAME 'InventoryURL'
         DESC 'Cal Resource Inventory Info URL'
         EQUALITY caseIgnoreIA5Match



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         SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 )

4.12.3.2.  VCard Property Definition

              Purpose:  To specify URL pointing to Inventory
   Information.

              Type value: URI.

              Cardinality: (0,n)

             ABNF:
             INVENTORYURL-param = "VALUE=uri" / any-param
             INVENTORYURL-value = uri

             Example:
               INVENTORYURL:http://www.example.com/room1_inventory.html


4.13.  Owner Info

   Description:
          Complete information on the owners of the resource.  An owner
   is anyone who has complete authority over the resource, from naming
   to overall availability.

   ValueType:
          URL value.

   Example value:
          http://www.example.com/room1_ownerinfo.html

4.13.1.  LDAP Attribute Definition

          owner attribute as defined in Section 2.21 of [RFC4519].

4.13.2.  VCard Property Definition

              Purpose:  To specify URL pointing to Resource Owner
   Information.

              Type value: URI.

              Cardinality: (0,n)

             ABNF:
             RESOURCEOWNERINFO-param = "VALUE=uri" / any-param
             RESOURCEOWNERINFO-value = uri



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             Example:
               RESOURCEOWNERINFO:http://www.example.com/room1_owner.vcf


4.14.  Resource Manager Info

   Description:
          Information on the managers of the resource.  A manager is
   someone responsible for the day-to-day up keep of the resource.

   ValueType:
          URL value.

   Example value:
          http://www.example.com/room1_managerinfo.html

4.14.1.  LDAP Attribute Definition

   Definition of the resourcemanager LDAP attrribute:

       ( 1.3.6.1.1.x.0.10
         NAME 'ResourceManager'
         DESC 'Cal Resource Manager Info'
         EQUALITY caseIgnoreIA5Match
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 )

4.14.2.  VCard Property Definition

              Purpose:  To specify URL pointing to Resource Manager
   Information.

              Type value: URI.

              Cardinality: (0,n)

             ABNF:
             RESOURCEMANAGERINFO-param = "VALUE=uri" / any-param
             RESOURCEMANAGERINFO-value = uri

             Example:
               RESOURCEMANAGERINFO:http://www.example.com/
   room1_manager.vcf

4.15.  Calendar URL

   Description:
          URL to access calendar data of the resource.




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   ValueType:
          URL value.

   Example value:
          http://www.example.com/calendar/home/Room1/calendar/

4.15.1.  LDAP Attribute Definition

          Calendar access attribute calCAPURI as defined in Section
   2.4.4.3 and calOtherCAPURIs as defined in Section 2.4.4.7 of
   [RFC2739] respectively.

4.15.2.  VCard Property Definition

          Calendar access property CAPURI as defined in Section 2.3.3 of
   [RFC2739].

4.16.  FreeBusy URL

   Description:
          URL to read freebusy information of the resource's calendar.


   ValueType:
          URL value.

   Example value:
          http://www.example.com/freebusy/home/Room1/

4.16.1.  LDAP Attribute Definition

          Calendar access attribute calFBURL as defined in Section
   2.4.4.2 and calOtherFBURLs as defined in Section 2.4.4.6 of [RFC2739]
   respectively.

4.16.2.  VCard Property Definition

          FBURL attribute as defined in Section 2.3.1 of [RFC2739] and
   further explained in Section 7.9.1 of [I-D.ietf-vcarddav-vcardrev].


4.17.  Scheduling Address

   Description:
          Address used for scheduling the resource by a Calendaring and
   Scheduling service.

   ValueType:



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          String value.

   Example value:
          mailto:room1@example.com

4.17.1.  LDAP Attribute Definition

          Scheduling Address attribute calCalAdrURI as defined in
   Section 2.4.4.4 and calOtherCalAdrURIs as defined in Section 2.4.4.8
   of [RFC2739] respectively.        This is the address that would be
   used by a Scheduling and Calendaring application to schedule the
   resource.        Its value must be a uri string, in most cases a
   mailto: uri.  The mail attribute value of the resource should be used
   for scheduling, in the absence of this attribute.

4.17.2.  VCard Property Definition

          Scheduling Address property CALADRURI as defined in Section
   2.3.2 [RFC2739] and further explained in Section 7.9.2 of
   [I-D.ietf-vcarddav-vcardrev].        This is the address that would
   be used by a Scheduling and Calendaring application to schedule the
   resource.        Its value must be a uri string, in most cases a
   mailto: uri.  The EMAIL property value of the resource should be used
   for scheduling, in the absence of this attribute.

4.18.  Time Zone

   Description:
          TimeZone Identifier for the timezone the resource is in.

   ValueType:
          String value.

   Example value:
          America/New_York

4.18.1.  LDAP Attribute Definition

   Definition of the timezoneid LDAP attrribute:

       ( 1.3.6.1.1.x.0.11
         NAME 'TimeZoneID'
         DESC 'Cal Time Zone ID'
         EQUALITY caseIgnoreIA5Match
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 )






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4.18.2.  VCard Property Definition

          TimeZone property TZ as defined in Section 7.5.1 of
   [I-D.ietf-vcarddav-vcardrev].

4.19.  Multiple Bookings

   Description:
          Number of simultaneous bookings allowed.

   ValueType:
          Integer value.
          Value of 0 indicates no limits.

   Example value:
          1

4.19.1.  LDAP Attribute Definition

   Definition of the multiplebookings LDAP attrribute:

       ( 1.3.6.1.1.x.0.12
         NAME 'Multiplebookings'
         DESC 'Cal Num Bookings Allowed'
         EQUALITY integerMatch
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 )

4.19.2.  VCard Property Definition

              Purpose:  To specify number of simultaneous bookings
   allowed.

              Type value: integer.

              Cardinality: (0,1)

             ABNF:
             MULTIBOOK-param = "VALUE=integer" / any-param
             MULTIBOOK-value = integer

             Example:
               MULTIBOOK:10

4.20.  Maximum Instances

   Description:
          Maximum number of instances of an event, the resource can be
   scheduled for from NOW.



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   ValueType:
          Integer value.
          Value of 0 indicates no limits.

   Example value:
          60

4.20.1.  LDAP Attribute Definition

   Definition of the maxnstances LDAP attrribute:

       ( 1.3.6.1.1.x.0.13
         NAME 'MaxInstances'
         DESC 'Cal Maximum Instances allowed'
         EQUALITY integerMatch
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 )

4.20.2.  VCard Property Definition

              Purpose:  To specify maximum number of instances of an
   event, the resource can be scheduled for from NOW.

              Type value: integer.

              Cardinality: (0,1)

             ABNF:
             MAXINSTANCES-param = "VALUE=integer" / any-param
             MAXINSTANCES-value = integer

             Example:
               MAXINSTANCES:10

4.21.  BookingWindow Start

   Description:
          Defines how much time in advance the resource can be booked.
   That is, what is the earliest opportunity for booking a resource for
   a given date and time.

   ValueType: Duration value.
          The format is based on the           [ISO.8601.2004]
             duration representation basic format with designators for
   the duration of time.           The format can represent nominal
   durations (weeks and days) and accurate           durations (hours,
   minutes, and seconds).

   Example value:



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          -P3M

4.21.1.  LDAP Attribute Definition

   Definition of the bookingwindowstart LDAP attrribute:

       ( 1.3.6.1.1.x.0.14
         NAME 'BookingWindowStart'
         DESC 'Cal Booking Window Start'
         EQUALITY caseIgnoreIA5Match
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 )

4.21.2.  VCard Property Definition

              Purpose:  To specify how much time in advance the resource
   can be booked.

              Type value: duration.
              The format is based on the           [ISO.8601.2004]
             duration representation basic format with designators for
   the duration of time.           The format can represent nominal
   durations (weeks and days) and accurate           durations (hours,
   minutes, and seconds).

              Cardinality: (0,1)

             ABNF:
             BOOKINGSTART-param = "VALUE=text" / any-param
             BOOKINGSTART-value = text

             Example:
               BOOKINGSTART:-P3M

4.22.  BookingWindow End

   Description:
          Defines how much time in advance the resource booking is
   closed.  That is, what is the latest opportunity for booking a
   resource for a given date or time.        BookingWindow Start and End
   together provide the window of time a resource can be booked relative
   to the start of the event.

   ValueType: Duration value.
             The format is based on the           [ISO.8601.2004]
             duration representation basic format with designators for
   the duration of time.           The format can represent nominal
   durations (weeks and days) and accurate           durations (hours,
   minutes, and seconds).



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   Example value:
          -P5D

4.22.1.  LDAP Attribute Definition

   Definition of the bookingwindowend LDAP attrribute:

       ( 1.3.6.1.1.x.0.15
         NAME 'BookingWindowEnd'
         DESC 'Cal Booking Window End'
         EQUALITY caseIgnoreIA5Match
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 )

4.22.2.  VCard Property Definition

              Purpose:  To specify how much time in advance the resource
   booking is closed.

              Type value: duration.
              The format is based on the           [ISO.8601.2004]
             duration representation basic format with designators for
   the duration of time.           The format can represent nominal
   durations (weeks and days) and accurate           durations (hours,
   minutes, and seconds).

              Cardinality: (0,1)

             ABNF:
             BOOKINGEND-param = "VALUE=text" / any-param
             BOOKINGEND-value = text

             Example:
               BOOKINGEND:-P5D

4.23.  Scheduling Approval Info

   Description:
          Information regarding approval of a scheduling request to the
   resource.

   ValueType:
          Object value.

4.23.1.  LDAP ObjectClass Definition

   Definition of the schedapprovalinfo LDAP objectclass:





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       ( 1.3.6.1.1.x.1.4
         NAME 'SchedApprovalInfo'
         DESC 'Calendar Sched Approval Class'
         SUP CalendarResource
         AUXILIARY
         MAY(autoaccept $ approvalinfourl $ schedadmin) )

4.23.2.  Auto accept

   Description:
              No approval required.  Auto accepted.

   ValueType:
              Boolean value.

   Example value:
              TRUE

4.23.2.1.  LDAP Attribute Definition

   Definition of the autoaccept LDAP attrribute:

       ( 1.3.6.1.1.x.0.16
         NAME 'Autoaccept'
         DESC 'Cal Scheduling auto accept'
         EQUALITY booleanMatch
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 )

4.23.2.2.  VCard Property Definition

              Purpose:  To specify if invitations should be
   automatically accepted.

              Type value: Boolean.

              Cardinality: (0,1)

             ABNF:
             AUTOACCEPT-param = "VALUE=boolean" / any-param
             AUTOACCEPT-value = "TRUE" / "FALSE"

             Example:
               AUTOACCEPT:TRUE

4.23.3.  Approval Info URL

   Description:
              URL pointing to complete information on scheduling request



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   approval process for the resource.

   ValueType:
              URL value.

   Example value:
              http://www.example.com/room1_approval.html

4.23.3.1.  LDAP Attribute Definition

   Definition of the approvalinfourl LDAP attrribute:

       ( 1.3.6.1.1.x.0.17
         NAME 'ApprovalInfoURL'
         DESC 'Cal Sched Approval Info'
         EQUALITY caseIgnoreIA5Match
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 )

4.23.3.2.  VCard Property Definition

              Purpose:  To specify URL pointing to Scheduling Approval
   Information.

              Type value: URI.

              Cardinality: (0,n)

             ABNF:
             APPROVALINFO-param = "VALUE=uri" / any-param
             APPROVALINFO-value = uri

             Example:
               APPROVALINFO:http://www.example.com/room1_approval.html


4.23.4.  Scheduling Admin Contact

   Description:
              Contact information for the scheduling approvers, if
   approval required.

   ValueType:
              URL value.

   Example value:
              http://www.example.com/SchedAdmin1.vcf





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4.23.4.1.  LDAP Attribute Definition

   Definition of the schedadmin LDAP attrribute:

       ( 1.3.6.1.1.x.0.18
         NAME 'SchedAdmin'
         DESC 'Cal Sched Admin Info'
         EQUALITY caseIgnoreIA5Match
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.12 )

4.23.4.2.  VCard Property Definition

              Purpose:  To specify URL pointing to Scheduling Manager
   Information.

              Type value: URI.

              Cardinality: (0,n)

             ABNF:
             SCHEDADMININFO-param = "VALUE=uri" / any-param
             SCHEDADMININFO-value = uri

             Example:
               SCHEDADMININFO:http://www.example.com/SchedAdmin1.vcf


4.24.  Cost

   Description:
          Scheduling costs for this resource.

   ValueType:
          Object value.

4.24.1.  LDAP ObjectClass Definition

   Definition of the cost LDAP objectclass:

       ( 1.3.6.1.1.x.1.5
         NAME 'CalendarResourceCost'
         DESC 'Calendar Resource Cost Object Class'
         SUP CalendarResource
         AUXILIARY
         MAY (nocost $ costurl)






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4.24.2.  Nocost

   Description:
              No cost for using the resource.  Can be used for a
   resource scheduling query.

   ValueType:
              Boolean value.

   Example value:
              TRUE

4.24.2.1.  LDAP Attribute Definition

   Definition of the nocost LDAP attrribute:

       ( 1.3.6.1.1.x.0.19
         NAME 'Nocost'
         DESC 'Free or Priced resource'
         EQUALITY booleanMatch
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 )

4.24.2.2.  VCard Property Definition

              Purpose: To specify if resource usage is free.

              Type value: A single boolean value.

              Cardinality: (0,1)

             ABNF:
             NOCOST-param = ; no parameter allowed
             NOCOST-value = boolean

             Example:
               NOCOST:TRUE

4.24.3.  Cost URL

   Description:
              URL pointing to complete pricing information for usage of
   the resource.

   ValueType:
              URL value.

   Example value:
              http://www.example.com/cost.html



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4.24.3.1.  LDAP Attribute Definition

   Definition of the costurl LDAP attrribute:

       ( 1.3.6.1.1.x.0.20
         NAME 'CostURL'
         DESC 'Cal Resource Cost Info'
         EQUALITY caseIgnoreIA5Match
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 )

4.24.3.2.  VCard Property Definition

              Purpose:  To specify URL pointing Resource Scheduling Cost
   Information.

              Type value: URI.

              Cardinality: (0,n)

             ABNF:
             COSTINFO-param = "VALUE=uri" / any-param
             COSTINFO-value = uri

             Example:
               COSTINFO:http://www.example.com/cost.html

4.25.  Related

   Description:
          Specify a relationship with another resource.

   ValueType:
          URL value.

   Example value:
          http://www.example.com/printer1.html

4.25.1.  LDAP Attribute Definition

   Definition of the related LDAP attrribute:

       ( 1.3.6.1.1.x.0.21
         NAME 'Related'
         DESC 'Related URL'
         EQUALITY uniqueMemberMatch
         SYNTAX 1.3.6.1.4.1.1466.115.121.1.34 )





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4.25.2.  VCard Property Definition

          The property RELATED as defined in Section 6.6.6 of
   [I-D.ietf-vcarddav-vcardrev].

5.  Examples

5.1.  LDAP Examples

5.1.1.  Location Resource


   dn: cn=Room One,ou=Engineering,dc=example,dc=com
   objectclass: top
   objectclass: calendarresource
   objectclass: admittanceinfo
   objectclass: inventoryinfo
   objectclass: schedapprovalinfo
   objectclass: calendarresourcecost
   kind: location
   vcarduid: room1-id
   cn: Room One
   ou: Engineering
   nickname: The One
   description: Room 1 in Engineering Building X
   categories: rooms
   categories: engineering_resources
   restricted: TRUE
   admittanceurl: http://www.example.com/room1_admittance.html
   accessabilityurl: http://www.example.com/room1_specialaccess.html
   capacity: 100
   inventorylist:phone, projector
   inventoryurl: http://www.example.com/room1_inventory.html
   owner: cn=RoomOwner,ou=Engineering,dc=example,dc=com
   resourcemanager: cn=RoomOwner,ou=Engineering,dc=example,dc=com
   calcapuri: http://www.example.com/calendar/home/Room1/calendar/
   calfburl: http://www.example.com/freebusy/home/Room1/
   calcaladruri: mailto:room1@example.com
   timezoneid: America/Los_Angeles
   multiplebookings: 1
   maxinstances: 10
   bookingwindowstart:-P3M
   bookingwindowend: -P3D
   autoaccept: FALSE
   approvalinfourl: http://www.example.com/room1_approval.html
   schedadmin: cn=RoomOwner,ou=Engineering,dc=example,dc=com
   nocost: FALSE
   costurl: http://www.example.com/cost.html



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5.1.2.  Role Resources Group


dn: cn=Drivers X,ou=Transportation,dc=example,dc=com
objectclass: top
objectclass: groupOfuniqueNames
objectclass: calendarresource
objectclass: schedapprovalinfo
objectclass: calendarresourcecost
kind: group
vcarduid: driversX-id
cn: Driver One
ou: Transportation
nickname: The X
description: Drivers in the Transportation department driver pool X
categories: drivers
uniquemember: cn=Driver1,ou=Transportation,dc=example,dc=com
uniquemember: cn=Driver2,ou=Transportation,dc=example,dc=com
uniquemember: cn=Driver3,ou=Transportation,dc=example,dc=com
owner: cn=Transportation_Manager,ou=Transportation,dc=example,dc=com
calfburl: http://www.example.com/freebusy/home/DriversX/
calcaladruri: mailto:driversX@example.com
timezoneid: America/Los_Angeles
multiplebookings: 3
maxinstances: 10
bookingwindowstart:-P3M
bookingwindowend: -P3D
autoaccept: FALSE
approvalinfourl: http://www.example.com/driversX_approval.html
schedadmin: cn=TransportationManager,ou=Transportation,dc=example,dc=com
nocost: FALSE
costurl: http://www.example.com/driversXcost.html

5.2.  VCard Examples

5.2.1.  Location Resource















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   BEGIN:VCARD
   VERSION:4.0
   UID:urn:uuid:room1-id
   KIND: location
   FN: Room One
   ORG: Engineering
   NICKNAME: The One
   NOTE: Room 1 in Engineering Building X
   CATEGORIES: rooms
   CATEGORIES: engineering_resources
   RESTRICTEDACCESS: TRUE
   ADMISSIONINFO: http://www.example.com/room1_admittance.html
   ACCESSABILITYINFO: http://www.example.com/room1_specialaccess.html
   CAPACITY: 100
   INVENTORYLIST: phone, projector
   INVENTORYURL: http://www.example.com/room1_inventory.html
   RESOURCEOWNERINFO: http://www.example.com/ResOwner1.vcf
   RESOURCEMANAGERINFO: http://www.example.com/ResManager1.vcf
   CAPURI: http://www.example.com/calendar/home/Room1/calendar/
   FBURL: http://www.example.com/freebusy/home/Room1/
   CALADRURI: mailto:room1@example.com
   TZ: America/Los_Angeles
   MULTIBOOK: 1
   MAXINSTANCES: 10
   BOOKINGSTART:-P3M
   BOOKINGEND: -P3D
   AUTOACCEPT: FALSE
   APPROVALINFO: http://www.example.com/room1_approval.html
   SCHEDADMININFO: http://www.example.com/SchedAdmin1.vcf
   NOCOST: FALSE
   COSTINFO: http://www.example.com/cost.html
   END:VCARD

5.2.2.  Role Resources Group

















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   BEGIN:VCARD
   VERSION:4.0
   UID:urn:uuid:driverXPool-id
   KIND: group
   FN: Driver X Pool
   ORG: Transportation
   NICKNAME: The X Group
   NOTE: Drivers in the Transportation department driver pool X
   CATEGORIES: drivers
   MEMBER:urn:uuid:driver1-id
   MEMBER:urn:uuid:driver2-id
   MEMBER:urn:uuid:driver3-id
   RESOURCEOWNERINFO: http://www.example.com/DriversManager.vcf
   FBURL: http://www.example.com/freebusy/home/DriversX/
   CALADRURI: mailto:driversX@example.com
   TZ: America/Los_Angeles
   MULTIBOOK: 3
   MAXINSTANCES: 10
   BOOKINGSTART:-P3M
   BOOKINGEND: -P3D
   AUTOACCEPT: FALSE
   APPROVALINFO: http://www.example.com/driversX_approval.html
   SCHEDADMININFO: http://www.example.com/DriversX_SchedAdmin.vcf
   NOCOST: FALSE
   COSTINFO: http://www.example.com/driversXcost.html
   END:VCARD

6.  Security Considerations

         As this document only defines schema for representing resource
   information for calendaring and scheduling       and does not refer
   to the actual storage mechanism itself, or the calendaring and
   scheduling protocol,       no special security considerations are
   required as part of this document.

7.  IANA Considerations

          A new IANA token 'resource', that can be used as a value
   representing a Resource in a VCard,        as defined in
   Section 4.2.2 needs to be registered.        In addition, the
   following new VCard Properties need to be registered by IANA.










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                        New VCard Properties Table:

            +---------------------+---------------------------+
            | VCard Property Name | VCard Property Definition |
            +---------------------+---------------------------+
            | RESTRICTEDACCESS    | Section 4.9.2.2           |
            | ADMISSIONINFO       | Section 4.9.3.2           |
            | ACCESSABILITYINFO   | Section 4.10.2            |
            | CAPACITY            | Section 4.11.2            |
            | INVENTORYLIST       | Section 4.12.2.2          |
            | INVENTORYURL        | Section 4.12.3.2          |
            | RESOURCEOWNER       | Section 4.13.2            |
            | RESOURCEMANAGER     | Section 4.14.2            |
            | MAXINSTANCE         | Section 4.20.2            |
            | BOOKINGSTART        | Section 4.21.2            |
            | BOOKINGEND          | Section 4.22.2            |
            | AUTOACCEPT          | Section 4.23.2.2          |
            | APPROVALINFO        | Section 4.23.3.2          |
            | APPROVERINFO        | Section 4.23.4.2          |
            | NOCOST              | Section 4.24.2.2          |
            | COSTINFO            | Section 4.24.3.2          |
            +---------------------+---------------------------+

8.  Acknowledgments

          This specification is a result of discussions that took place
   within the Calendaring and Scheduling Consortium's Resource Technical
   Committee.  The authors thank the participants of that group, and
   specifically the following individuals for contributing their ideas
   and support: Arnaud Quillaud, Adam Lewenberg, Andrew Laurence, Guy
   Stalnaker, Mimi Mugler, Dave Thewlis, Bernard Desruisseaux, Alain
   Petit, and Jason Miller.

9.  Normative References

   [I-D.ietf-vcarddav-vcardrev]  Perreault, S. and P. Resnick, "vCard
                                 Format Specification",
                                 draft-ietf-vcarddav-vcardrev-11 (work
                                 in progress), May 2010.

   [ISO.8601.2004]                             International
                                 Organization for Standardization
                                             , "            Data
                                 elements and interchange formats --
                                             Information interchange --
                                             Representation of dates and
                                 times           ", 2004.




Joy, et al.             Expires January 10, 2011               [Page 33]


Internet-Draft            Schema for Resources                 July 2010


   [RFC2119]                     Bradner, S., "Key words for use in RFCs
                                 to Indicate Requirement Levels",
                                 BCP 14, RFC 2119, March 1997.

   [RFC2739]                     Small, T., Hennessy, D., and F. Dawson,
                                 "Calendar Attributes for vCard and
                                 LDAP", RFC 2739, January 2000.

   [RFC4519]                     Sciberras, A., "Lightweight Directory
                                 Access Protocol (LDAP): Schema for User
                                 Applications", RFC 4519, June 2006.

Authors' Addresses

   Ciny Joy
   Oracle Corporation
              4150 Network Circle
              Santa Clara          ,            CA            95054
              USA

   EMail:          ciny.joy@oracle.com
   URI:            http://www.oracle.com/


   Cyrus Daboo
          Apple Inc.
              1 Infinite Loop
              Cupertino          ,            CA            95014
              USA

   EMail:          cyrus@daboo.name
   URI:            http://www.apple.com/


   Michael Douglass
   Rensselaer Polytechnic Institute
   110 8th Street
   Troy, NY  12180
   USA

   EMail: douglm@rpi.edu
   URI:   http://www.rpi.edu/









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