The header record of a batch file contains totals of items in the file. Each time the file is processed, the totals are also updated. Nightly, after the batch processes, the relevant data fields are summed and compared with the totals. Unbalanced conditions are reported and corrected. This example describes: a) Segregation of duties b) Application output control c) Application edit check d) Applicaiton input control

What are the differences between a source file and a listing file?

Project: Blood Donation System The blood donation center is responsible for managing the donations process as it is received from the donor until it is sent to the distribution office. First the blood center worker will enter the donor's general information like name and birthdate then the system will create an account for the donor and generate an id if it was the first donation by the donor. Next, the donor will give the donation and the worker will create a new record of the donation in the system by entering the donor's ID. Then the donation will be sent to a testing unit. The testing unit will conduct tests on the donation and sends the blood donation along with test results to the processing office, which will fill a form for the donation if they pass the test and finally sends the blood units and forms to the distribution office. If the donation failed the test, the processing office will destroy the donation and will notify the worker. Please note that the donor must at least…

Structural in-dependence exists when it is possible to make changes in the file structure without affecting the application program's ability to access the data. Select one: True False