Changes

===A New Model===

===A New Model===

We make a distinction between the typical single-application, multi-document model of computing and the OLPC full-screen activity interface, where each object (document) runs within its own instance—multiple instances of a given activity may run in parallel. Activity instances within Sugar provide a way to handle files as objects; each instance may represent a different group of collaborating individuals. "Open" and "Save" actions are relegated to a journal interaction; creating a new instance of the Draw activity implicitly creates a new drawing. To "open" an older drawing, you simply [[#Resuming_Activities|resume]] it.

We make a distinction between the typical single-application, multi-document model of computing and the OLPC full-screen activity interface, where each object (document) runs within its own instance—multiple instances of a given activity may run in parallel. Activity instances within Sugar provide a way to handle files as objects; each instance may represent a different group of collaborating individuals, and creating a new instance of the Draw activity implicitly creates a new drawing. "Open" and "Save" actions are relegated to a journal interaction; In fact, we strengthen this by replacing the notion of "Saving" with the more general notion of "Keeping" things. To "open" a drawing you've kept, you simply [[#Resuming_Activities|resume]] it.

{{hig-subnav|prev_link=The Laptop Experience/Global Search|prev=Global Search|next_link=Activities/Activity Basics|next=Activity Basics}}

{{hig-subnav|prev_link=The Laptop Experience/Global Search|prev=Global Search|next_link=Activities/Activity Basics|next=Activity Basics}}