Advantages and disadvantages Sample Essay Example For Students

Advantages and disadvantages Sample Essay An economical manner of garnering informations from a big figure of people. If the questionnaire is good designed. so the consequences can be analysed easy. perchance by computing machine. Good questionnaires are hard to build. There is no automatic mechanism for follow up or examining more profoundly. although it is possible to follow up with an interview by telephone or in individual if necessary. Postal questionnaires suffer from low response rates. Appropriate state of affairss Questionnaires are most utile when the positions or cognition of a big figure of people need to be obtained or when the people are geographically dispersed. for illustration. in a company with many subdivisions or offices around the state or around the universe. Questionnaires are besides appropriate for information systems which will be used by the general populace. and where the analyst needs to acquire a image of the types of user and use that the system will necessitate to manage. 5. 3. 6 Remembering the techniques For those who like mnemonics. these techniques are sometimes referred to as SQIRO—Sampling. Questionnaires. Interviewing. Reading ( or Research ) and Observation. This order has been chosen to do it possible to articulate the mnemonic. However. this is non the order in which they are most likely to be used. This will depend on the state of affairs and the organisation in which the techniques are being used. 5. 3. 7 Other techniques Some sorts of system require particular fact happening techniques. Adept systems are computing machine systems which are designed to incarnate the expertness of a human expert in work outing jobs. Examples include systems for medical diagnosing. stock market trading and geological analysis for mineral prospecting. The procedure of capturing the cognition of the expert is called cognition acquisition and. as it differs from set uping the demands for a conventional information system. a figure of specific techniques are applied. Some of these are used in concurrence with computer-based tools.