Ontario Data Documentation, Extraction Service and Infrastructure Initiative (<odesi>)Established in 2007, <odesi> (Ontario Data Documentation, Extraction Service and Infrastructure) is a digital repository for social science data, including polling data. It is a web-based data exploration, extraction and analysis tool that uses the Data Documentation Initiative (DDI) social science data standard. <odesi> provides researchers the ability to search for survey questions (variables) across hundreds of datasets. The data is in different formats, such as microdata, Excel and B2020 files. | 
