1. Copyright 2010, The World Bank Group. All Rights Reserved. COVERAGE, FRAMES & GIS, Part 1 Quality assurance for census 1

2. Copyright 2010, The World Bank Group. All Rights Reserved. INTRODUCTION Coverage Frames  Registers  Dwelling Frames  Area Frames 2

3. Copyright 2010, The World Bank Group. All Rights Reserved. COVERAGE 3 Although a census is to cover all the people of a country, no NSO actually manages to achieve this goal

4. Copyright 2010, The World Bank Group. All Rights Reserved. COVERAGE DIFFICULTIES Nomads Multiple residences – Wealthy – Students Homeless Non-residential dwelling places 4

5. Copyright 2010, The World Bank Group. All Rights Reserved. REGISTERS Population Registers Other  Electoral Registers  Telephone Listings  Government Administrative Files 5

6. Copyright 2010, The World Bank Group. All Rights Reserved. OTHER REGISTERS Electoral lists or registers Telephone lists Government Administrative Files 6

7. Copyright 2010, The World Bank Group. All Rights Reserved. DWELLING FRAME Address Files GPS 7

8. Copyright 2010, The World Bank Group. All Rights Reserved. GEOGRAPHICAL POSITIONING SYSTEM (GPS) Locates dwellings by using x-y coordinates 8 Source: Wikipedia

9. Copyright 2010, The World Bank Group. All Rights Reserved. AREA FRAMES Listing EA Delineation Base Maps Urban Street Maps GIS 9

10. Copyright 2010, The World Bank Group. All Rights Reserved. LISTING On Listing Sheets record: Dwellings Population in dwellings On EA map: Add new dwellings Add new features Remove missing dwellings and features 10

11. Copyright 2010, The World Bank Group. All Rights Reserved. ENUMERATION AREA Definition Used for enumeration Used for aggregation 11

12. Copyright 2010, The World Bank Group. All Rights Reserved. EA DELINEATION Delineation Tools EA Maps Base Maps Satellite Imagery Measuring Tools 12

13. Copyright 2010, The World Bank Group. All Rights Reserved. VERIFICATION GIS tools By hand 13

14. Copyright 2010, The World Bank Group. All Rights Reserved. RECONCILIATION Current Census Codes Previous Census(es) Codes 14

15. Copyright 2010, The World Bank Group. All Rights Reserved. EA LOOK-UP TABLES 15