Input controls
Control activities designed to ensure that input is authorised, complete,
accurate and timely are referred to as input controls. Dependent on the
complexity of the application program in question, such controls will vary in
terms of quantity and sophistication. Factors to be considered in determining
these variables include cost considerations, and confidentiality requirements
with regard to the data input. Input controls common to most effective
application programs include on-screen prompt facilities (for example, a
request for an authorised user to ‘log-in’)