Property management is the operation, control, maintenance, and oversight of real estate and physical property. This can include residential, commercial, and land real estate.

Consultants do not have to be subject-matter experts as consulting agreements are a form of labor contract - comparable to staffing, which a client procures for more generalized labor, whereas consulting is for more specialized labor.

Sales are activities related to selling or the number of goods sold in a given targeted time period. The delivery of a service for a cost is also considered a sale. A period during which goods are sold for a reduced price may also be referred to as a "sales"

Architecture is the art and technique of designing and building, as distinguished from the skills associated with construction.