Section 2, "Description of Data,"describes the data used for this study, investigates the basic statistical properties and outlines the pre-processing required before utilisation of the data.
In the past five years there has been an increase in HIV/AIDS surveillance, but there is still a general lack of rational collection and utilisation of the data as well as of appropriately trained medical staff [3], [4], [5].
In this way, although HIRU is the data custodian, there is shared control over access to, and utilisation, of the data.
Various models for health-related data are described in the literature [ 35] and we plan to test the functionality and acceptability of different models for the utilisation of the data by the research community.
Given the methodological difference in the clinical examinations, the frequently low response rate to such surveys, and the fact that evaluated need depends on service utilisation, the validation of these data in estimating treatment need should be explored.
We compared routine data on utilisation of services with data from the population surveys to consider the accuracy of estimates of system utilisation from the population surveys.
In the current era of data 'mining' and utilisation of sparse data, the above criteria are not always fully met, increasing model uncertainties.
Challenges that have to be addressed are data interoperability, utilisation of standards, data quality and privacy concerns, data ownership, rights to publish, data pooling architecture and storage.
Utilisation of current data formats through integration with the above-ground data is recommended for a holistic building information model.
