The Seven Pernicious Kingdom view (CWE-700) is based on the original 7PK paper, which is focused primarily on usefulness to developers. It groups weaknesses by categories.
Development Concepts View (CWE-699)
The Development Concepts view (CWE-699), sometimes referred to as the Development view, organizes weaknesses around concepts that are frequently used or encountered in software development. Accordingly, this view can align closely with the perspectives of developers, educators, and assessment vendors.
Some of the goals of CWE-699 include flexibile navigation (useful categories), familiarity (similarity to other efforts), and coverage (identifying all low-level CWE weaknesses).