Question 1: Designing file or database is a major component of system designing. Identify its basic purposes.
Designing file or database
This serves following purposes:
- Data accessibility is ensured to the user is ensured as and when required.
- Data consistency - data updates in master file will automatically update the data in the whole system.
- Data is efficiently processed & stored.
- Data integrity that is Correctness of data is ensured. This does not mean that incorrect amounts entered into the computer will be automatically corrected by because the computer only records what is entered but if there is an error in entering pre-defined parameters these would be corrected or thrown up as an error. Further, the data processed according to the pre-defined procedures every time around without any change unless an error has been caused to the program handling the data.