Open data is the data which is easily accessible and is in such a format which can be used by anyone.This data may or may not be free. This data can be made available through the API or pay per use models. This concept was initiated in the 1950’s when World Data Centre system was formed to enhance accessibility. Companies can, with the help of open data, develop applications and improve their products. Government can ensure transparency and efficient use of public money. Open data helps in decision making. The only concern being data security and privacy. Open data should be transferred within the legal boundaries after filtering, which data can be transferred and which cannot be. Read more at: http://analyticsindiamag.com/what-is-open-data-and-where-can-you-find-it/