It is convenient to have basic knowledge of sociology, economics, and law. In particular, the role of transnational organizations (World Bank, United Nations, European Union) must be known. Likewise, there is necessary basic mathematics and applied statistics knowledge to the correct interpretation, calculation as well as management of databases and indicators. It is recommended to have a medium-high level of English for adequate access to information sources. Likewise, an adequate level of use of ICTs is required.