Documentation for diffrent users specialist,”it is important to identify the user and their documentation requirements. Users are normally categorised by their level of knowledge of the operation system Novice need quick start guides, troubleshooting tips and user manuals that expalin basic processes in detials. Intermediate need more detailed user manuals which assume some prior knowledge troubleshooting guides and simple technical guides. Expert Need manuals with explanation of complex or advanced features Expert support specialist ussually software or hardware technicians whose role is to maintain the system. specialist those users depend on the use of interior monitor system to do their work. They may include data entry operations, web devleopters and graphic designers. Adjunctive people for whom information technology assissts in them work is not essential. This group includes medical staff, teachers, accountats, laywers and store managers. Incidents- occasinally uses of an information system examples include a customer using a company web-based product catalogued order goods, accessing point-of-scale systmes
or even interacting with an electronic switchboard with voice mail.”