This is an alternate content page containing a DragNDrop Activity. It has opened in a new window.
There are two groups of items. Match the items in group 1 with the items in group 2.

Group 1:
Syntactic level
Conceptual level
Lexical level
Semantic level

Group 2:

Delete files action could be invoked by multiple object selection

User's mental model of interactive system
Deals with device dependencies and precise mechanism

Deleting a single object by invoking delete button or by clicking undo option


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