Information gaps in demography ...which information do we have and which do we still need?

Availability of Information is the first step to have reliable results; it is only through information that we are able to control the activities, procedures and evaluations.
Data on population play an important role as a tool for demographic research; the availability of permanent and accurate demographic data is necessary in order to meet the needs of researchers and policy makers. Although there are many sources of demographic data, demographers around the world still suffer from lack of data which affects their work and consequently, the evidence based they provide to decision makers.
This paper aims to provide demographic information world map, it starts by reviewing the available demographic information classified by world regions to shed the light on: Main demographic parameters (fertility, mortality and migrations) and its sources (census, vital statistics, and special surveys). In its second section the paper provides a rapid assessment of the quality of the demographic data according to the international standards including: Relevance, accessibility, timeliness, Interpretability and Comparability. The main results of the paper can be used by the demographic organizations and individuals to work on those information gaps.