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 supportand call center functions like telemarketing, CAD drafting, customer service, market research,manufacturing, designing,web development,print-to-mail, ghostwriting and engineering.
Offshoring is 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. With increasing globalization of outsourcing companies, the distinction between outsourcing and offshoring will become less clear over time. This is evident in the increasing presence of Indian outsourcing companies in the United States and United Kingdom. The globalization of outsourcing operating models has resulted in new terms such asnearshoring, noshoring, and rightshoring that reflect the changing mix of locations. This is seen in the opening of offices and operations centers by Indian companies in the U.S. and UK. A major job that is being outsourced is accounting and preparation of tax returns.
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 agovernance model that communicates strategy, clearly defines responsibilityand 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.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.

Due to the complexity of work definition, codifying requirements, pricing, and legal terms and conditions, clients often utilize the advisory services of outsourcing consultants or outsourcing intermediaries to assist in scoping, decision making, and vendor evaluation.