Consultant
A consultant (from Latin : consultare "to discuss") is a professional who provides professional or expert advice [1] in a particular area such as security ( electronic or physical ), management , accountancy , law , human resources , marketing (and public relations ), finance , engineering , science or any of many other specialized fields. A consultant is usually an expert or a professional in a specific field and has a wide knowledge of the subject matter. [2] The role of consultant outside the medical sphere (where the term is used specifically for a grade of doctor) can fall under one of two general categories: Internal consultant - someone who operates within an organization but is available to be consulted on areas of specialism by other departments or individuals (acting as clients); or External consultant - someone who is employed extern...