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GDG621S - GEODEMOGRAPHICS - 2ND OPP - JULY 2024 |
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nAmlBIA unlVERSITY
OF SCIEnCE Ano TECHnOLOGY
FACULTYOF ENGINEERINGAND THE BUILT ENVIRONMENT
DEPARTMENT OF LAND AND SPATIALSCIENCES
QUALIFICATIONS: BACHELOR OF GEOINFORMATION TECHNOLOGY
QUALIFICATIONS CODES: 07BGEI
QUALIFICATIONS LEVEL: 7
COURSECODE: GDG621S
SESSION: JULY 2024
COURSENAME: GEODEMOGRAPHICS
PAPER:THEORY
DURATION: 3 HOURS
MARKS: 100
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SECONDOPPORTUNITY EXAMINATION QUESTION PAPER
EXAMINER{S) Ms Susanna Anl<ama
MODERATOR: Ms Celeste Espach
INSTRUCTIONS
1. Write your student number on each answer sheet used.
2. Answer ALL the questions.
3. Read each question carefully before attempting to answer.
4. Write clearly and neatly.
PERMISSIBLEMATERIALS
1. Non-Programmable calculator.
2. Pen
3. Pencil
4. Eraser and ruler
THIS QUESTION PAPERCONSISTSOF 5 PAGES(Including this front page)
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Geodemographics
GDG621S
Question 1
Please explain the meaning of the following terms:
1.1 Geodemographics
(4)
1.2 Trade Area Analysis
{3)
1.3 Choropleth map
(3)
1.4 Reverse ecological fallacy
(3)
1.5 Market Analysis
(2)
[15]
Question 2
As a GISAnalyst, you are tasked to assist in analyzing and identifying areas suitable to build a new
medical center in Windhoek. Part of the information provided is 1) Population data per suburb
which is given in a form of excel tables not spatially referenced. You have also been given the
following spatially referenced datasets: 2) Existing Medical centers, 3) Windhoek Townships.
2.1 List the first (6) steps to follow in order to attain the classification for this task.
(6)
2.2 Explain the GIS operation you will use to integrate the Population data into the
workflow and why.
(6)
2.3 Briefly discuss two main methods to enhance data through GIT technologies.
(4)
2.4 What other methods of data collection can be considered without going into the
field? Explain in detail.
(4)
[20]
Second Opportunity Memorandum
Page 2 of 5
June 2024
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Geodernographics
GDG621S
Question 3
Very few countries in Africa have effective address systems for rural areas. This makes it difficult for
planning and implementation of service delivery to the people. StatsSA is currently running an
initiative called "addressing the unaddressed" to provide postal address for the people living in
slums and shanty towns around the world.
3.1 Name two (2) similar international projects learned in the course that are working on
providing proper spatial data and attributes in order to bring development, planning
and implementation of service delivery in rural areas.
(2)
3.2 What are the objectives of the two projects?
(4)
3.3 In your own understanding, what are the disadvantages of lack of spatial data and
proper attributes for development planning?
(4)
[10]
Question 4
The power of a GIS in market analysis is in its ability to manage data from a number of different
sources and its capability for interactive visualization in exploring data and the results of analyses.
4.1 Briefly explain how demographic profiles are used in market analysis.
(4)
4.2 How can geodemographic cluster segmentation methods be used before and after a
market analysis study? Explain.
(4)
4.3 What is the difference between Catchment profiling and Trade Area Analysis?
(6)
4.4 List and explain three different ways of devising a catchment area around a particular
store.
(6)
[20]
Second Opportunity Memorandum
Poge3of5
June 2024
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Geodern ographics
GDG621S
Question 5
A popular way of expressing inequality graphically is through a Lorenz diagram. This curve is also
used in poverty analysis in Namibia. An example of such a diagram or curve is given below.
1-0 ~----------------------~
Lorenz curve
0.8
0.6
0-:::;
./
04
//
//
//
0.2
//
/
/
0.0
0.0
0.2
0.4
0.6
0.8
1.0
p
5.1 How is the Lorenz curve derived and how is it interpreted?
(3)
5.2 What does the straight line mean in a Lorenz curve?
(3)
5.3 A measure for this inequality is the Gini-coefficient. The Gini-coefficient takes the
value between O and 1, where O stands for the unlikely perfect equality and 1 for the
equally unlikely total inequality. How is the Gini-coefficient measured in the Lorenz
curve?
(2)
5.4 Looking in detail at the curve below, in this particular case, the monthly expenditure
per capita was calculated. What does the curve show at p = 0.8?
(3)
Second Opportunity Memor;indum
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June 2024
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Geodemographics
GDG621S
5.5 In your opinion or knowledge, is the Gini-coefficient high or low in Namibia, and what
does it mean?
(4)
[15)
Question 6
Answer the following questions regarding questionnaires:
6.1 List the different phases to develop and collect data by using questionnaires.
(7)
6.2 Describe five (5) guidelines for developing a good questionnaire.
(5)
6.3 Advice on when to use open format questions and closed format questions. Give an (4)
example fo,r each.
II
6.4 When can you use random sampling?
(2)
6.5 Describe one method of quality control and monitoring of a survey that is usually done (2)
before the field work and why.
[20)
Second Opportunity Memorandum
Page 5 of 5
June 2024