Ontario Data Documentation, Extraction Service and Infrastructure (<odesi>) was a jointly funded project between the Ontario Council of University Libraries (OCUL) and OntarioBuys. It provides researchers with access to datasets in a web-based data extraction system delivered through Scholars Portal (http://www.scholarsportal.info/). Primarily, <odesi> contains survey microdata. It also includes other data, such as aggregate data.
The goal of this document is to share our mark-up knowledge with other academic institutions. It is also to include the best practices for DDI so there will be consistency in marking up the surveys.