Data cleansing, is also known as data scrubbing. It is the process of correcting the errors from database. During the cleansing, all records are examined for reliability and accuracy – and then it is corrected or deleted. Method used for data cleansing are flexible and can be used on single sets of data or multiple records that work together and/or need to be merged.

The most naive type of data cleansing engages one person for proofreading another one for records and scanning for inaccuracies or mistakes. Trouble-free typing errors, spelling mistakes are fixed and corrected. In addition, data cleansing techniques expose and eliminate records that are unrecoverable. This is done to free up space and ensure that all operations within given data sets are running smoothly.

More complicated data cleansing techniques are effectively performed by specially designed computer programs. The business that depends on accurate data can be gained greatly from the services of a data scrubbing organization.

The process of Data Cleansing:

• Data audit: The data is reviewed with the use of algebraic methods to detect glitch and inconsistency..
• Work flow specification: The detection and removal of difference is performed by a sequence of operations on the data known as the work flow.
• Work flow execution: In this stage, the work flow is executed after its specification is complete and its correctness is verified. The implementation of the work flow should be efficient even on large sets of data which inevitably poses a trade-off because the execution of a data cleansing operation can be computationally expensive.
• Post-Processing and Controlling: After executing the cleansing work flow, the results are inspected to verify correctness. Data that was not corrected during implementation of the work flow are now manually approved if possible.

Outsourcing  is a sub contract, to a third-party company. The choice whether to outsource or to do in-house is often demand upon attaining a lower production cost, making better use of available resources. Outsourcing became part of the business glossary during the 1980s.In short, outsourcing means contracting with another company to do a particular function on the company behalf.

Many out sized companies now outsource their works like call center services, e-mail services, and payroll. These jobs are handled by individual companies that specialize in each service, and are often located overseas.

At present, outsourcing takes many forms. Organizations still appoint service providers to handle different business processes, such as benefits management. But some organizations outsource whole operations. The most common forms are information technology outsourcing (ITO) and business process outsourcing (BPO).

Reasons for Outsourcing:

Cost Savings: By outsourcing the third party company to work you can reduce the labor cost which reduces your cost and also you can concentrate on your core business.

* Improve quality. The outsourcing companies offers you 99.99% quality and also will complete the work in fast turn around time.

* Operational expertise. Access to operational best practice that would be too difficult or time consuming to develop in-house.
* Capacity management. An improved method of capacity management of services and technology where the risk in providing the excess capacity is borne by the supplier.
* Tax Benefit. Countries offer tax incentives to move developed operations to counter high corporate taxes within another country.

The challenges of outsourcing become especially sensitive when the work is being done in a different country.