Real estate: one who transforms rawland to improved land by use of labor, capital, and entrepreneurial efforts.
Computers: one who writes application software , programmer .

chemical agent used in photography to make photographic images visible after exposure to light.

one who transforms raw land to improved property by use of labor, capital, and entrepreneur efforts.

Example: Abel buys 25 acres of land for $10,000 per acre . After putting in streets and utilities, dividing it into 100 lots, and building homes on each lot, Abel sells the homes. Abel is a developer.