District officials are expected to be versatile, to know their district and their people, and to implement agreed plans efficiently and effectively. Simply a district official needs mapping and associated data at a scale of 1:1000. Department officials, on the other hand, are professional people under a “permanent secretary” or city clerk. These officials are expected to be knowledge able and have experience and expertise in the applications area for which they are responsible. They are more concerned with long term strategic planning for which maps of 1:10,000 scale or smaller are sufficient