Transcript  Introduction  Strategic Objectives of IT Operation for 2008 Census  Constraints  Conclusion.

 Introduction
 Strategic
Objectives of IT
Operation for 2008 Census
 Constraints
 Conclusion
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The NIS, which is the part of the Ministry of Planning, is
focal point on statistical matters in Cambodia. The
mandate of NIS is data collection, compiling and
dissemination though the survey and censuses.
The statistical units and sections contains the line
Ministries and Provincial Planning Department.
IT Operation in NIS has started since 1993 up to date
with support of many development partners.
The IT methods used in 1998 census and 2008 Census
are similar methods using micro computer for data
entry, computer editing, tabulation and
dissemination products.
IT Strategy for 2008 Census comprises a large array of
activities, ranging from pre-census and post-census.
 Data
Processing Plan
 Tabulation and Data Analysis
 The Dissemination Plan
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Pre-census data processing activities
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Prepare Enumeration Area Maps and Databases
Data processing site
Procure the necessary equipment
Training on Data Entry, Computer Editing, and Tabulation application
development
To develop the required training manuals, coding schemes, and software
application.
Post-census data processing activities:
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Check-in of census documents
Manual coding and editing
Data Entry
Computer editing
Tabulation of census results
Release of Census figures in two stages: 1. Provisional Totals in Sep. 2008
and 2. Final Result in Sept. 2009.
Forms of dissemination
Population database
Examples of macro-level Population Databases
Data Storage
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More than 2,8 million questionnaires
received at NIS Census Office.
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Questionnaires stored EA-wise in folders
(approx. 120 questionnaire per EA).
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Each folder labeled with a unique
bar code. To track movement
of EA batches and to register
against Census Frame.
 Storage
onto shelving racks.
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To prepare census questionnaires for the
next stage, i.e. Data Entry.
Consistency of information contained in
each questionnaire to be verified/edited.
Some four variables require coding. For
example:
Occupation
farmer
policeman
Occupation
farmer
6
policeman
5
1 1
1 8
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Time consuming activity.
Information on some 13.4m persons
and 2,8 m households needs to be
captured!
140 microcomputers and
keyboard operators have been
used.
Data entry software is CSPro. A userfriendly package developed by
US Census Bureau.
Some 20% verification to minimize
typing errors.
Took 9 months for Data Entry
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Errors in census data can be introduced
at various stages:
 Respondent’s error
 Interview error
 Coding/editing error
 Data entry (typing)
error
During computer editing a set of computer
programs is used to detect and correct
above errors. Software is the Batch Editing
module of CSPro.
 Results of computer editing are clean data
sets, free of errors and ready for tabulation.
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In 1998 Census, 57 basic Priority Tables
down to district level 11,513 priority tables
have been produced. In 2008 Census, 70
basic Priority Tables and down to
commune level 73,151 priority tables
have been produced.
 2008 Census has also produced more for
supplement tables.
 The analysis of census data by NIS is
mainly confined to priority tables, chart
and additional tables that may be
produced for analysis.
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Some 70 priority tables have
been defined. Ad hoc
tabulation will be produced
upon request.
Priority tables to be
produced at national,
provincial and district level.
Limited tabulation can be
performed on commune
and village level.
Software is the CENTS
module of IMPS.
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Provisional census results, consisting of
population figures by sex, were released on
September 2008 presided by Deputy Prime
Minister of RGC.
Detailed census tabulation at national level
was released after completion of Data Entry
and computer editing, i.e. third quarter of
September 7, 2009 by Samdech Akka Moha
Sena Padei Techo HUN SEN, Prime Minister of
the Kingdom of Cambodia .
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Publication of printed tables and
reports for general distribution.
Dissemination on computer
media for some users.
On-line dissemination;
Internet.
Workshop/Seminar
The Table Retrieval System stores the
large number of census tables onto a
single CD ROM and facilitates easy
retrieval of selected tables.
 A user-friendly interface will be
available to select multiple tables for
multiple geographical areas.
 The application will also include a table
viewer that allows exporting the tables
or table cells to Excel spreadsheets for
further manipulation and analysis
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This dissemination product is based on an indicator
database consisting of aggregated counts, rates
and ratios for all possible geographical levels.
A variety of indicators may be considered, such as:
distribution by age groups and sex, household types,
median age, dependency ratio, singulate mean
age at marriage, literacy rate, employment rate,
educational attainment, proportions of migrants,
etc.
The application allows to select areas and will
include functionality to present some of the key
indicators in a graphical format and to export the
profile to Excel format.
Greatly expands the usability and enhances
the dissemination of census data.
 Database for micro-data (individual records)
permit retrieval of data at any level of detail.
 Database for macro-data (aggregated
data). Less versatile because predefined
scope and formats.
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Table-oriented databases.
Time-series and indicators databases in
which census results are integrated with
other data sets, e.g. previous censuses
and other inquiries such as health,
education, agriculture statistics.
Graphing and mapping databases.
Mapping capabilities greatly improves
the effectiveness of census information
dissemination.
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Mapping and graphing databases also greatly
improve the effectiveness of census
dissemination as trends and patterns of the
larger area, and distinct boundary and
characteristics are more easily detected when
displayed on maps.
The project will make available map layers for
the Country, Provinces, Districts, Commune
and, if possible, Villages. Statistical databases
consisting of aggregated count, ratios and
rates for all geographical levels will
complement these map layers.
The layers will be in ESRI shape file and
MapInfo table file formats. Data users are
expected to acquire a copy of their preferred
GIS software
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CamInfo is the national adaptation of Dev Info
software, a global initiative funded by the
United Nations.
Cam Info is Cambodia's Socio-Economic and
demographic Indicator Database, providing a
one-stop user-friendly computer program for
storage, retrieval, comparison and
dissemination of a wide range of indicators
from different sources, including national
surveys, censuses and administrative systems.
CamInfo also allows the user to retrieve and
compare indicator data values across multiple
time periods, geographic levels, and other
sub-group dis-aggregations. Data
presentation is possible with tables, graphs and
maps.
1. CD-ROM
2. External Hard Disk
3. Server
Paucity of supervisory IT staff in the
Census Data Processing Division.
 Sometimes virus-affected computers.
 Coding wrong
 Inconsistency of data
 Administrative area changes
 Suitable incentive to Data Processing
staff may be needed
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The IT strategy for 2008 General Population Census
of Cambodia played an important role and
served as an essential tool to successfully
complete the census work.
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The IT strategy covered the pre-census and postcensus operations. The pre-census activities
included check-in phase, site for data processing,
and training. The post-census activities covered
data entry, computer editing, tabulation and
dissemination operations.
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It would be better if lessons are drawn from the
constraints mentioned above to improve the IT in
the future censuses