This view contains every CWE. CWEs are organized into 22 high-level categories of interest to large-scale software assurance research to support the elimination of weaknesses using tactics such as secure language development. This view is structured with categories at the top level, with a second level of only weaknesses.
Research View (View-1000)
This View also contains every CWE. It has a deep tree structure, beginning with 10 high-level Pillars. It might be especially useful when you are looking for unusual weaknesses, as you could perform a top-down search.
Hardware Design View (View-1194)