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Human Interface Guidelines/The Laptop Experience/The Journal (view source)
Revision as of 12:59, 6 February 2007
, 12:59, 6 February 2007→The Journal
=====Falloff=====
=====Falloff=====
Due to the laptops' limitations in storage capacity, the potential exists for the Journal to contain so many entries that no more may be written. However, the frequency of such an occurrence is limited by temporal falloff, which tidies up the Journal contents and keeps space available. One might think of this as an intelligent combination of garbage collection and disk defragmentation.
Due to the laptops' limitations in storage capacity, the potential exists for the Journal to contain so many entries that no more may be written. However, the frequency of such occurrences is limited by temporal falloff, which tidies up the Journal contents and keeps space available for new entries. One might think of this as an intelligent combination of garbage collection and disk defragmentation.
The driving principle here is that of temporal granularity, derived directly from our very capacity for human memory. Our minds, generally speaking, maintain a high level of granularity with respect to very recent events, but only a low granularity for events from several years ago. Moreover, this granularity tends to follow a logarithmic curve, where the past few minutes remain quite clear, the past few hours more blurry, and by last month quite vague. When we look years into the past, only specifically memorable events stand out in our minds.
On the laptops the policies are a bit more strict, but the principle remains the same. With a finite amount of memory, some means of managing what's remembered, or kept, and what's forgotten, or erased must exist. An intelligent algorithm will assist children in identifying "forgotten" entries. Taking into account how old an entry is, how many times she's viewed it, how recently she's worked on it, how many hours she's worked on it, how many people she's worked on it with, its tags, and even more forms of automatically generated metadata, the Journal can suggest to her those entries which it feels can be erased. She will then have the opportunity to review those items prior to their erasure, if she wishes, and can keep any she still feels attached to.
In a time where gigabytes have become cheap, many of us still manage to fill our hard drives. Excepting the cases of multimedia collections of audio or video files, much of that space is consumed by files we either don't remember we ever made, or will never open again. On the laptops, where space is precious, so too will be the objects and entries that remain in the journal years down the road. The temporary, the experimental, the duplicate, and the unwanted files will naturally fall off the bottom, maintaining a browsable history of those that remain important to the children.
====Journal Entries====
=====Implicit=====
=====Note=====
=====Clipping=====
=====Event=====
====The Power of Metadata====
====The Power of Metadata====
Implicit...
=====Tagging=====
=====Metadata=====
Implicit & explicit
Ratings...
Ratings...
Use frequency...
Use frequency...
====Powerful Filtered Searching & Sorting====
====Powerful Search, Filter & Sort====
=====Searching=====
=====Filtering=====
Special filters, labels or tags: about to be removed, lazy deleted (trash can), in progress...
Special filters, labels or tags: about to be removed, lazy deleted (trash can), in progress...
=====Sorting.=====
====Implicit Versioning System====
====Implicit Versioning System====
====Automatic Backup and Restore====
====Automatic Backup and Restore====
Automatic backups to server...
Automatic backups to server...
====The Journal as a Progress Indicator====
====The Journal as a Progress Indicator====
Two stages for entries...
Two stages for entries...
{{hig-subnav-intra|p_page=View Source|c_section=The Laptop Experience|c_page=The Journal|n_page=Global Search}}
{{hig-subnav-intra|p_page=View Source|c_section=The Laptop Experience|c_page=The Journal|n_page=Global Search}}