Content Model Dashboard

See also ItemCollectionDesign

Collection

• Katie is working on these

Content Item

• creator

attributes relating to historical dates for the item

• creation date
• last modification date

attributes relating to global properties

• project - can a collection be associated with a project
• subject � a general subject, such as might be found in a library card catalog. Are the attribute values of subjecy a hierarchy?

attributes relating to its collections and collection types

• mailboxes
• calendars
• sphere of life (* requires discussion)
• contact groups (* requires discussion)
• ad hoc (* requires discussion) Mimi says: auto-named, openable in place, renamable
• generic (* requires discussion) Mimi says: always user named, not openable in place

other attributes of Content Item

• participant. The values of a participant attribute are of kind Participant. See LisaDusseault20040426 for potential examples of attributes of a Participant item. We need to model a participant's role (organizer, attendee, requestor, requestee, etc.) and restrict legal roles for a particular sub-kind of Content Item to a specific set of roles using sub-attributes.

contained sub-items

• conversations
• contained notes

proposed additions to content item

• calendar date � what is the relationship between this and an event's start time? collapse the two?
• recurrence
• tickler or reminder - * Can tickler be modeled as an item with an "action" attribute - what to do when the tickle date = now?
• @contexts - @home, @office, @office�
• importance - important, FYI
• ISSUE: can users add their own attribute values? delete pre-defined ones?

Event

• headline
• start-time
• end-time
• duration (* derived value � requires discussion)
• event status � , tentative, confirmed, cancelled
• ISSUE: discuss all-day events, multiple-day events, time zones

• body � do we really need this. does iCal have one?
• location � it has one, but how to model
• resources � does it have one?
• related mail message � for stamping? but then we have three ways to tie an email to an event. stamp the email, put a date on the email, make a collection. maybe calendar date can be a start time and an end time?
• time transparency
• other attributes needed for compatibility
• ISSUE: what roles for participants in an event?

Task

• headline
• task status � what are the attribute values?

• body
• location � maybe we don't need this
• task roles � requestor, requestee
• related mail message � requires discussion
• what roles for participants in a task?

Note

• [TK]

Instant Messages

* ISSUE: needs discussion

email

Attachment (probably a sub-kind of document?

Document

• [TK]

General Issues about the CM needing (possibly much) discussion

• item histories
• CM for notification and logging
• ad hoc attributes (i.e.. categories)
• sharing-related issues
• interoperability-related issues
• which layer things fit in (Chandler, Core Content Model, PIM Parcel)
• modeling rule-based collections and queries

Data Model-related issues to Content Item Modeling

• collection-related modeling issues (Katie)
• collections of collections - needed to use collections to expose hierarchical public addresses
• derived attributes, e.g., duration as derived attribute of start time and end time
• sub-attributes
• the "alias" feature needed for

  AnyContact

• anything about strings

Non Content Item Kinds

• Contact, including the "me" contact
• Group
• Permission
• Certificate
• Document
• Principal
• Parcel
• Caplet
• full modeling of dates, times, durations, time zones -- bug #1149

Additional Kinds we will need to model to support content Item

• Participant
• Recurrence
• Tickler

-- MitchKapor - 26 Apr 2004