OnMyCalendar is a bottom-up tool that allows users to enter data once and have it used in multiple places like websites, emails and printouts. It aims to reduce effort, simplify processes and take advantage of instantly available information. Key features include an enterprise website manager, central calendar and announcements, staff website, web forms, personal teacher/department websites, and WhatsUp pages for parents and students. The tools provide flexibility and allow customization while automating routine tasks.