The number of examples for data entry varies, based on the business field or the nature of information. For example, it could involve typing customers' details from the paper form to a computer database. There could also be other activities such as adding products' information in the e-commerce site, entering the invoice information to accounting software, keeping the records of employees, and typing information from PDF files into spreadsheets. An example of database entry can involve the addition of a customer's name, address, contact details, and buying history to the database of a firm. The job of thedata entry clerks may also involve scanning of papers, organizing spreadsheets, validating existing information and correcting any wrong data. Firms may sometimes combine these tasks with data processing, web searching and document converting. The key aspect of the data entry process is that it helps to ensure accuracy, organization and accessibility of the information.