Census Analysis and Dissemination
Statistics South Africa (Stats SA) use SuperCROSS, Space-Time Research’s desktop client for fast, flexible tabulation and analytics, to easily handle, manipulate and analyze their census and survey data, and use SuperWEB2 for easy, online ad-hoc tabulation and dissemination of data.
Stats SA Overview
Country: South Africa
Industry: Federal Government
Statistics South Africa is the government agency responsible for South Africa’s official statistics.
In 1996, Stats SA ran the first Population Census to enumerate the entire South African population. Logistically it was a huge undertaking and its importance in terms of government policy direction and resource allocation could not be overstated. Stats SA had clear goals for the census:
- Make the census as accurate and useful as possible.
- Share as much data as possible with as many people as possible.
- Provide users with the tools they need to be able to easily access and analyze data.
- Make Stats SA the preferred supplier of quality statistics.
In close collaboration Space-Time Research and Stats SA tackled and overcame various data collection, analysis and dissemination challenges in South Africa.
The challenge of moving boundaries and dwellings
One of the biggest challenges was the actual count—what to count and how to count it. One difficulty Stats SA encountered was that the geographic boundaries were always changing; another was that not all dwellings and households had a unique identifier. As a result, one dwelling counted in one census was not necessarily there the next time the census was taken, making data accuracy a concern. To bridge the gap between censuses, Stats SA undertakes community surveys. Survey data helps them to maintain demographic and socio-economic data at municipal level, and to assist government and private sector in planning, evaluation and monitoring of programs and policies. A survey has many of the same challenges as a census, and it is imperative that the resulting data for both is accurate, especially data at detailed geographical levels. Stats SA use SuperCROSS for fast, flexible tabulation and analytics, to easily handle, manipulate and analyze the census and survey data.
Reliable confidentiality a reality
Stats SA maintain confidentiality of unit record information by using random rounding and cross tabulation to run queries without identifying an individual record. At one time, Stats SA were having problems with discrepancies in totals caused by different random rounding approaches implemented in different data dissemination products. SuperCROSS was instrumental in overcoming these problems, and is now Stats SA’s preferred product for disseminating lower-level data, for example data about municipalities, magisterial districts, and electoral wards.
The challenge of publishing data for demanding public and private users
Since their first census, the demands on Stats SA for census data dissemination have increased exponentially. Stats SA employ two online methods of meeting this demand. One is using SuperCROSS to create cubes, which they disseminate via SuperTABLE™. Cubes provide users with the flexibility to run any query they want based on those cubes. Stats SA also uses SuperWEB™ for web-based ad hoc tabulation, providing both the public and private sectors with more detailed data for their individual analytics.
- Freedom for Stats SA to do almost any cross-tabulation and is infinitely better able to meet the data requirements of their stakeholders
- Data accuracy and confidentiality is assured
- Both CD and online dissemination means anyone can access the data they need
“SuperSTAR allows us the freedom to do almost any cross-tabulations, which means that we are better able to meet the data requirements of our stakeholders.”
Tracy Daniels, Acting Executive Manager at Statistics South Africa
To view Stats SA census data using SuperWEB2, visit http://superweb.statssa.gov.za/webapi
– Issued 17 October 2009