# Edit Item type

A topic is a pre-defined search, showing all items matching criteria you specify. Topics may also contain sub-topics.

Document Details
Short Name
Short Name is part of the item's web address. Should not contain spaces, upper case, underscores or other special characters.
Validation error output
Title (Required)
Validation error output
Description
A brief description of the item.
Description
Inherit Criteria
Toggles inheritance of criteria. For example, if you have specified that only items from the last three days should be shown in a Topic above the current one, this Topic will also have that criterion automatically.