Outsourcing involves the transfer of the management and/or day-to-day execution of an entire business function to an external service provider. The client organization and the supplier enter into a contractual agreement that defines the transferred services. Under the agreement the supplier acquires the means of production in the form of a transfer of people, assets and other resources from the client.

The client agrees to procure the services from the supplier for the term of the contract. Business segments typically outsourced include information technology, human resources, facilities, real estate management, and accounting. Many companies also outsource customer support and call center functions like telemarketing, CAD drafting, customer service, market research, manufacturing, designing, web development, content writing, ghostwriting and engineering. Offshoring is the type of outsourcing in which the buyer organization belongs to another country.

Outsourcing and offshoring are used interchangeably in public discourse despite important technical differences. Outsourcing involves contracting with a supplier, which may or may not involve some degree of offshoring. Offshoring is the transfer of an organizational function to another country, regardless of whether the work is outsourced or stays within the same corporation/company.

Multisourcing refers to large outsourcing agreements (predominantly IT). Multisourcing is a framework to enable different parts of the client business to be sourced from different suppliers. This requires a governance model that communicates strategy, clearly defines responsibility and has end-to-end integration.

Strategic outsourcing is the organizing arrangement that emerges when firms rely on intermediate markets to provide specialized capabilities that supplement existing capabilities deployed along a firm’s value chain (see Holcomb & Hitt, 2007). Such an arrangement produces value within firms’ supply chains beyond those benefits achieved through cost economies. Intermediate markets that provide specialized capabilities emerge as different industry conditions intensify the partitioning of production. As a result of greater information standardization and simplified coordination, clear administrative demarcations emerge along a value chain. Partitioning of intermediate markets occurs as the coordination of production across a value chain is simplified and as information becomes standardized, making it easier to transfer activities across boundaries.