Combating Data Input Errors In Programming

ABSTRACT

Debugging is a necessary process in almost any new software or hardware development process, whether a commercial product or an enterprise or personal application program. For complex products, debugging is done as the result of the unit test for the smallest unit of a system, again at component test when parts are brought together, again at system test when the product is used with other existing products, and again during customer beta test, when users try the product out in a real world situation. Because most computer programs and many programmed hardware devices contain thousands of lines of code, almost any new product is likely to contain a few bugs. Invariably, the bugs in the functions that get most use are found and fixed first. An early version of a program that has lots of bugs is referred to as "buggy." 

In computers, debugging is the process of locating and fixing or bypassing bugs (errors) in computer program code or the engineering of a hardware device. To debug a program or hardware device is to start with a problem, isolate the source of the problem, and then fix it. A user of a program that does not know how to fix the problem may learn enough about the problem to be able to avoid it until it is permanently fixed. When someone says they've debugged a program or "worked the bugs out" of a program, they imply that they fixed it so that the bugs no longer exist. 

TABLE OF CONTENTS

CERTIFICATION PAGE

DEDICATION

ACKNOWLEDGEMENT

ABSTRACT

CHAPTER ONE

1.1 INTRODUCTION

1.2STATEMENT OF PROBLEM

1.3PURPOSE OF STUDY

1.4IMPORTANCE OF STUDY

CHAPTER TWO

2.0 LITERETURE REVIEW

2.1 BASIC SIGNAL THEORY

2.2 TYPES OF ERRORS

2.2.1 COMPILATION ERRORS

2.2.2 RUN TIME ERRORS

2.2.3 LOGIC ERRORS

2.2.4 SYNTAX ERRORS

CHAPTER THREE

3.0 COMBATING INPUT ERRORS

CHAPTER FOUR

4.0 BASIC DEBUGGING STEPS

4.1 RECOGNIZE THAT A BUG EXISTS

4.2 ISOLATE THE SOURCE OF BUG

4.3 IDENTIFY THE CAUSE OF BUG

4.4 DETERMINE TO FIX FOR BUG

4.5 FIX AND TEST

CHAPTER FIVE: CONCLUSION

5.1LIMITATION OF STUDY

5.2SUGGESTION FOR FURTHER RESEARCH

REFERENCES