Org charts have long been used to show people the formal reporting lines in organizations, usually as a hierarchy with different levels.
However organizations are regularly re-organized, requiring a new org chart to be created. In fact, organizations are completely dynamic, changing in ways small and large every single day.
A fantastic video (below) depicts the continuous and frequently dramatic changes in the org chart of Autodesk over a 4 year period, in what the creators describe as an OrgOrgChart (Organic Organizational Chart). It’s well worth watching.