Front office
In business, front office refers to sales and marketing divisions of a company. It may also refer to other divisions in a company that involves interactions with customers.
In information technology, front office may refer to an integrated CRM software.
In financial services companies, front office refers to investment management, corporate finance, and sales teams.
In professional sports, front office generally refers to the management of a team, conference, league or some other sport organization.
Back office
A back office is a part of most corporations where tasks dedicated to running the company itself take place. The term comes from the building layout of early companies where the front office would contain the sales and other customer-facing staff and the back office would be those manufacturing or developing the products or involved in administration but without being seen by customers. Although the operations of a back office are usually not thought of, they are a major contributor to a business.
Examples of back-office tasks include it departments that keep the phones and computers running (operations architecture), accounting, and human resources. These tasks are often supported by back-office systems: secure e-commerce software that processes company information (i.e. a database). A back-office system will keep a record of the company’s sales and purchase transactions, and update the inventory as needed. Invoices, receipts, and reports can also be produced by the back-office system.
Web service
A 'Web service' (also Web Service) is defined by the W3C as "a software system designed to support interoperable machine-to-machine interaction over a network". Web services are frequently just web APLs that can be accessed over a network, such as the internet, and executed on a remote system hosting the requested services.
Example: Front office , web service
http://www.villa-wangsawat.com
