A professional who operates encoding machine to trace coordinates on documents, such as maps or drawings, and to encode document points into computer. Responsibilities include:

• Reads work order to determine document points to be digitized (encoded).
• Positions document on digitizer (encoding machine) table.
• Guides digitizer cursor over document to trace coordinates, stops at specified points, and punches cursor key to digitize points into computer memory unit.
• Observes monitor screen periodically to verify completeness of encoding.
• Types command on keyboard to transfer encoded data from memory unit to magnetic tape.
• Keeps record of work orders, time, and tape production.