Kuva mu mwaka wa 2000 kugeza mu mwaka wa 2014, imibereho y'abanyarwanda yateye imbere muri rusange. Ibyo bigaragazwa n'ibipimo bitandukanye nk'uko Ikigo cy'Igihugu cy'Ibarurishamibare mu Rwanda cyagiye kibishyira ahagaragara. 

This publication is a compilation of concepts and definitions in a move to guard against the inconsistencies in data production, reporting and interpretation. NISR, as the coordinator of the National Statistical System, therefore, took the initiative to produce the Compendium of Statistical Concepts and Definitions for Rwanda with the contribution of several Ministry's departments and agencies and Research Institutions.

This is the second version of Visa Instruction manual. Besides its mandated role as the prime producer of official statistics in Rwanda, the National Institute of Statistics or Rwanda (NISR) is entrusted with the coordination responsibilities of the entire National Statistical System. This implies that NISR must keep track with any data collection endeavors undertaken in the country, with the aim of ensuring high quality statistics that will adequately serve their purposes.

The quality management in National Statistical Offices typically takes the form of a quality assurance framework. Several issues have historically underscored the need for national statistical offices to systematically adopt quality management measures sooner rather than later and translate them into a formalized quality assurance framework. In this direction, the purpose of this document is to formulate a framework for quality assurance of the National Statistical System (NSS) of Rwanda with special reference to National Institute of Statistics of Rwanda (NISR).