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A Consolidated Artifact Model

Common structure: the organizer is always available because its small and portable, while the calendar is large and hangs on a wall. The organizer has a closed past and open future as a rubber band t close off the past, and the calendar has scotch tape to close off the past. Comment intent - Appearance fits with personal lifestyle thru the nice cover & interior design, and week or month view for the organizer, while the calendar does thru art and decoration about a theme with a month only view. Final product: common intent but variation of structure and usage = a monthly calendar with events written in the day boxes.

Beyer & Holtzblat (1998), Contextual Design, Morgan Kaufmann, Page:183