Share services refer to a company's management of a single or numerous business units by sharing resources and information among them. To put it another way, shared services are the aggregation of business operations that are employed by multiple parts of the same company. Shared services are cost-effective because they centralise back-office processes that are used by many divisions of the same organisation, reducing redundancy and lowering costs. The shared service model emphasises clearly defined business functions, centralised service, and a single point of delivery. This model is supported by information technology and its services and caters to the needs of many business divisions inside the company.