Information Technology
In the case of input data to computers of any type, let us remember that a computer is just a machine and depends on the instructions given to it by the individuals who have programmed the machine. The programmers try to put in solutions in the operating programs for every sort of problems that can be done by the material input to the computer for processing. This is in the form of data directly by an individual or from another machine. For the different data sources that are given in our requirement, remember that printed questionnaires and long documents consist of large amounts of data in one item to be entered. These have many sources for errors and these have to be searched for and then the process of entry is done by another individual.
The next type is of telephone surveys, and these again have to be entered into the computer from the recorded survey information or from copies of the same. These are sometimes checked by persons in charge of the survey and sometimes are not checked. Bank checks are often cashed by machines at the banks itself and these machines must be capable of reading the checks. Here there is not a great question of entries as this is done by the machine. When the checks are cashed manually, then they have to be entered like any other data as mentioned above. Retail tags are...
This is a totally machine process and does not require any further entries.
There are different types of problems that can come with the data that have been entered manually. The first is a simple type of user error and this means an error by the person who has entered the data. The second source of error could be an attempt to load too much of data into the machine -- much more data than the machine can handle. Errors can be reduced only through manual efforts to improve the forms so that the errors are reduced, through different entries directly from the forms to the machine, etc. The other problem is with Java Script and these can be used to check the forms. If however the data has any connection with the Internet, then these are best avoided as this would lead to the data being read by the hackers. The final important point is that the person entering the data has to be careful and make sure that the checks by the persons responsible for checking the data have stopped all errors. This does not happen in practice. (Form input security)
Now let us look at the other part of the requirement and that is of the method of output for data that has come from different sources. The first two are the hand held camera…
