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ETHIOPIA 2017 POPULATION AND HOUSING CENSUS DATA CAPTURING AND PROCESSING STRATGEY. UN Regional workshop on 2020 world programme on PHC: International standards and contemporary technologies, Dar- es - salam , Tanzania May 29- June 1, 2017. Outlines. Background
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ETHIOPIA 2017 POPULATION AND HOUSING CENSUS DATA CAPTURING AND PROCESSING STRATGEY UN Regional workshop on 2020 world programme on PHC: International standards and contemporary technologies, Dar-es-salam, Tanzania May 29- June 1, 2017
Outlines • Background • Need for Alternative Solutions • The 2017 Census data capturing and processing strategy • Experience in Digital Technology • Preparations • Challenges & mitigation • Partners for census • Conclusion
1. Background • Population and Housing Census involves the largest data capturing exercise in the art of data collection. • It involves capturing of millions of forms. • The Central Statistics Agency (CSA) started using old techniques like Punched Card Reader as early 1960’s. • Three Population and Housing Censuses have so far been conducted in Ethiopia. • The first PHC was carried out in 1984.
Background . . . • During the 1984 Census: • Census data was captured using manual keyboard based entry using mainframe computer • FORMSPEC data entry system was used • It took more than 2 years to capture the data for about 42 million people. • In the case of the 1994 Census: • Data capture was again done on manual keyboard entry basis using PC’s. • CENTRY data entry system (IMPS) was used.
Background . . . • It took about 18 months to capture the data for the population of about 53 million. • The entry work was done on 2-shift basis • About 180data entry clerkswere involved • Around 90 Pc’s were used
Limitations of the Keyboard Entry Method • Time consuming • Does not allow the availability of timely data • The data will be weaker in representing the current or existing situation • Subject to additional non-sampling errors • Human error due to manual keying • Due to the volume of the data, a 100% verification as in the case of sample surveys, is difficult. • Large number of data entry operators and equipment required.
Scanning Technology for 3rd Census in 2007 • The Scanning Technologyin generalimplements two basic techniques:- • Mark recognition, like the Optical Mark Reader (OMR). • Character recognition, like the Optical Character Recognition (OCR) and the Intelligent Character Recognition (ICR)
The Scanning Process • It mainly involves:- • Scanning / Data Capture of questionnaires, • Key-correction or validation of scanned data. • Exporting the scanned and key-corrected data into ASCII or Text format .
DRS • Photo Scribe Series PS900 • High speed ImagingMark Reader • Windows XP professional • CD R/WR drive • Network connectivity • A TFT monitor, Keyboard, mouse • Speed: up to 8,500 forms / hour
Benefits of Scanning Technology • Reduce time required for data capture (about 6 months). • Support to get timely data; • Users’ need satisfied (policy makers, planners, researchers, etc.) • Support to save millions of forms for future references.
Challenges of Scanning Technology • limited in capacity building / knowledge. • The Equipment's are not useable for other survey. • Data cleaning take long time. • Require clean sheet document.
2. Need for Alternative Solutions • High demand for timelycensus results. • Need for quality census results. • Previous census challenges. • Challenges in managing paper. • Hence the need to use better Technology.
3. The 4th Census data capture strategy • The 4th population and housing census data capture, processing and management strategy was latest scanning technology using ICR and OCR, developed by June 2013. • The experience of India and South Africa was solicited for preparation. • However, the global move, continental and regional group discussion and national demand urge to use hand held devices for census.
3. Census data capture… • UNFPA organize workshop on digital data capture for 2020 round of census on Feb 2016 at Addis Ababa. • Countries Cabo Verde, Côte d’Ivoire, São Tome & Principe, Senegal, Comoros, DRC, Ethiopia, Lesotho, Madagascar, Mozambique, Swaziland, Kenya, South Africa, Brazil, India and others involved in the workshop sharing their experience in digital census. • During the workshop, Cost-benefit analysis was presented to the workshop and government for decision. • At the end of the workshop, there were recommendations produced and deliver to the government.
Sustainable use of the devices • The use of the tablets after the census. Devices will be used for national CRVS programme, Health and education data generation, statistical programmes other censuses, research institutions, and others. • The commission highlight the technology will build national capacity and transform data production in quality and timeliness. • Thus, the Census Commission of Ethiopia approve the use of the handheld devices for the 2017 PHC.
4. CSA’s Experience in Digital Technology • Data Capturing tools (PDAs) • Price data collection in 110 market places (CPI and PPI)
Experience in on Digital … • Data Capturing tools (GPS) • Delineation of part of the EAs (30%) of the 2007 PHC using GIS-based technology Trimble Gino 2017 census EA map
Experience on Digital… • CAPI (Computer Assisted Personal Interviewing) Mini Laptop • Productivity Safety Net Program survey • Socio-economic Survey • Feed the Future Survey • EDHS 2016 etc..
5. The 2017 Census data capturing and processing schema Supervisor RAW DATA Results MICRO DATA CSPRO DB
6. Preparations for Census • About 350 tablets and power banks were procured for pilot. • FTP server was configured for data Transfer during pilot. • Procurement of 180,000 Tablets for Census is under process. • MOU was Signed with INSA to solve Data Center and • Security problem. • Linking digital maps with census enumeration is under • process of testing.
6. Preparations … • Data Capturing Application is prepared with the help of US Bureau of US Census experts. • Field data monitoring database (RDB) developed to follow up the enumeration by Italian experts. • Staff training in managing the technology and infrastructure is going on with partners. • Three Pilot Census was conducted successfully using Tablets.
6.1 Tablet based pilot Census • Test:- • Mobile device suitability • Software suitability • Power backup system • Network coverage • Data transfer modalities • Data security • Performances of enumerators and Supervisors • Accuracy of the responses.
7. Challenges • Procurement of devices. • Power supply. • Human capacity. • Infrastructures. • Data security.
8. Mitigation • Procurement lead by the government. • Alternative power supply like power bank, solar. • Recruitment guideline, training, visit. • Network, data center, power. • Back up, security layer and defenses.
9. Partners for Census • UN Agencies: UNFPA, UNICEF • USAID/ Bureau US Census • IADC/ ITSTAT • ONS/DFID • WB
10. Budget • The cost of the census data capture and processing is about 40 million USD (23%) out of 163 million USD census overall estimated cost. • Most of the cost will be covered by the government treasury.
Conclusion • Use of technology including mobile devices in census and surveys has great contribution for timely and quality statistics for national and international needs. • Government commitment critical. • Partners (UNSD, UNFPA, AFDB, others) support for digitizing the census is indispensable.