Space, time and the use of open source geospatial tools in the evaluation of primary level education: the case of Peru

This paper discusses the integration of space and time into the concept of space-time slices within a multi-dimensional data cube. The space-time cube is implemented in an open source object-relational database (PostgreSQL with PostGIS) within an open source, Web Map Service (WMS) in MapServer. Together, these components form a custom programmed tool named EduCal that is developed to access and evaluate school-based education data in developing countries. The application allows space-time regions of indicators to be assembled and evaluated with a target-based, weighted multi-criteria model that includes five dimensions of education, namely inputs, process, context, outputs and outcomes. The paper presents the concept of space-time and its implementation using spatial on-line analytical processing. Its application to education data from Peru provides a practical case study for how the concept and model can be used to facilitate education assessment and planning.