ABSTRACT Computerized based spec analysis system includes the sets of methods that allow us to measure the dimensions and dynamics of populations. These methods have primarily been developed to study human populations, but are extended to a variety of areas where researchers want to know how populations of social actors can change across time through processes of birth, death, and migration. In the context of human biological populations demographic analysis uses administrative records to develop an independent estimate of the population. Computerized based spec analysis system estimates are often considered a reliable standard for judging the accuracy of the census information gathered at any time. In the labor force demographic analysis is used to estimate sizes and flows of populations of workers; in population ecology the focus is on the birth, death and movement of firms and institutional forms, the software is created and design with visual basic 6.0
ORGANIZATION OF WORK This project work is primarily designed to give an insight to Computerized based spec analysis system. Chapter one talks about introduction to Demographic analysis, study of problem and objectives as well as definition of the scope. Chapter two comprises the literature review. Chapter three gives the detailed information about the existing (old) system, while chapter four and five deals with the design and implementation of new system. Chapter six documents the project work, while chapter seven summaries, conclusion and suggestions were made.
TABLE OF CONTENTS Title page i Certification ii Dedication iii Acknowledgement iv Abstract v Table of contents vii CHAPTER ONE INTRODUCTION 1 1.1 Background of the study 1 1.2 State of the problem 2 1.3 Purpose of the study 3 1.4 Aims and objectives 3 1.5 Scope of study 5 1.6 Limitations of study 5 1.7 Assumptions 6 1.8 Definition of terms CHAPTER TWO:LITERATURE REVIEW 2.0 Accurate Population Data A Vital Ingredient for social and economic Policy 7 2.1 Population and demographic divided 8 2.2 Family planning and reproductive health 9 2.3 Over population an obstacles to family planning 9 2.4 overpopulation or overconsumption? 11 2.5 food, water, energy and the global population 13 2.6 population of Nigeria 15 2.7 population and housing unit estimates 16 2.8 why are censuses conducted? 17 2.9 link between censuses data and development 17 2.10 the determinants and consequences of trends in census data 18 2.11 Nigeria‟s experience in census exercise 20 2.12 country experience in the conduct of population and housing census 22 2.13 challenges of population census 25
3.1 Description and analysis of existing system 28
3.2 Fact finding method used 28
3.3 Organization structure 29
3.4 Objectives of Existing system 30
3.5 Input, Analysis 31
3.6 Output analysis 31
3.7 Process analysis 31
3.8 Information flow chart diagram 32
3.9 Problems of the Existing System 32
3.10 Justification of the New System 33
4.1 Design of the New System 34
4.2 Input Specification and design 34
4.3 Output specification and design 34
4.4 File Design 35
4.5 Procedure chart 37
4.6 System flow chart 38
4.7 System requirements 39
4.8 Implementation of new system 39 4.9 program flow chart 41 4.10 Choice of the program language 44 4.11 source of the program listing 44 4.12 test data 44 4.13 system documentation 44 4.14 user documentation 44 CHAPTER FIVE 5.1 summary, conclusion and Recommendation s 45 5.2 conclusion 45 5.3 recommendation 47 5.4 references 48
CHAPTER ONE 1.0 INTRODUCTION Demography is the statistical and mathematical study of the size, composition, and spatial distribution of human populations and how these features change over time. Data is obtained from a census of the population and from registries-records of events like birth, deaths, migrations, marriages, divorces, diseases, and employment. To do this, there needs to be an understanding of how they are calculated and the questions they answers which is included in these four concepts: population change, standardization of population numbers, the demographic bookkeeping equation, and population composition.
Population change is analyzed by measuring the change between one population size to another. Global population continues to rise, which makes population change an essential component to demographics. This is calculated by taking one population size minus the population size in an earlier census. The best way of measuring population change is using the intercensal percentage change. The intercensal percentage change is the absolute change in population between the censuses divided by the population size in the earlier census. Next, multiply this by 100 to receive a percentage. When this statistic is achieved, the population growth between two or more nations that differ in size, can be accurately measured and examined.
For there to be a significant comparison, numbers must be altered for the size of the population that is under study. For example, the fertility rate is
calculated as the ratio of the number of births to women of childbearing are to the total number of women in this age range (multiplied by 1000). If these adjustments were not made, we would not know if a nation with a higher rate of births or deaths has a population with more women of childbearing age or more births per eligible woman.
Within the category of standardization, there are two major approaches: direct standardization and indirect standardization. Direct standardization is able to be used when the population being studied is large enough for age-specific rate are stable. Indirect standardization is used when a population is small enough that the number of events (births, deaths, etc.) are also small. In this case, methods must be used to produce a standardized mortality rate (SMR) or standardized incidence rate (SIR)
Population composition is the description of population defined by characteristics such as age, race, sex or marital status. These descriptions can be necessary for understanding the social dynamics from historical and comparative research. This data is often compared using a population pyramid. Population composition is also a very important part of historical research. Information ranging back hundreds of years is not always worthwhile, because the numbers of people for which data are available may not provide the information that is important (such as population size). Lack of information on the original data-collection procedures may prevent accurate evaluation of data quality. 1.1 STATEMENT OF THE PROBLEM Owing to:
(i) The difficulties encountered in keeping demographic data/information.
(ii) Miscalculation of demographic data/information,
(iii) Difficulties in accessing demographic data/information
(iv) Time wasted in searching for a given demographic data/information on packed files.
(v) Time wasted in processing demographic data/information
The need arise for the development of computerized based spec analysis system for national population commission Enugu. 1.3 PURPOSE OF THE STUDY The main purpose of this study is to eliminate errors involved in demographic data/information. This is actualized by designing computerized based spec analysis system for national population commission Enugu which is user friendly and interactive. By the time this software is designed and implemented, the difficulties encountered with manual method of keeping demographic information will be eliminated.