14. (Data Processing) a. A national medical testing laboratory wants a new computer systemto analyze its test results. The system must be capable of processing each day's results aswell as retrieving and outputting a printed report of all results meeting certain criteria,such as all results for a particular doctor or for hospitals in a certain state. Determinethree or four major program units into which this system could be separated. (Hint: Onepossible program unit is "Prepare Daily Results" to create each day's reports.)b. Suppose someone enters incorrect data for a test result, and the error is discoveredafter the system has entered and stored the data. What program unit is needed to cor-rect this problem? Discuss why such a program unit might or might not be requiredby most systems.c. Assume a program unit exists that allows users to change data that has been enteredand stored incorrectly. Discuss the need for including an "audit trail" that would allowreconstructing the changes later as well as when they were made and who made them.

The, given information is regarding data processing. So, the answer has given below:

14. (Data Processing) a. A national medical testing laboratory wants a new computer system to analyze its test results. The system must be capable of processing cach day's results as well as retrieving and outputting a printed report of all results meeting certain criteria, such as all results for a particular doctor or for hospitals in a certain state. Determine three or four major program units into which this system could be separated. (Hint: One possible program unit is "Prepare Daily Results" to create cach day's reports.) b. Suppose someone enters incorrect data for a test result, and the error is discovered after the system has entered and stored the data. What program unit is needed to cor- rect this problem? Discuss why such a program unit might or might not be required by most systems. c. Assume a program unit exists that allows users to change data that has been entered and stored incorrectly. Discuss the need for including an "audit trail" that would allow reconstructing the changes later as well as when they were made and who made them.

14. (Data Processing) a. A national medical testing laboratory wants a new computer system to analyze its test results. The system must be capable of processing cach day's results as well as retrieving and outputting a printed report of all results meeting certain criteria, such as all results for a particular doctor or for hospitals in a certain state. Determine three or four major program units into which this system could be separated. (Hint: One possible program unit is "Prepare Daily Results" to create cach day's reports.) b. Suppose someone enters incorrect data for a test result, and the error is discovered after the system has entered and stored the data. What program unit is needed to cor- rect this problem? Discuss why such a program unit might or might not be required by most systems. c. Assume a program unit exists that allows users to change data that has been entered and stored incorrectly. Discuss the need for including an "audit trail" that would allow reconstructing the changes later as well as when they were made and who made them.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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