African evaluate complex organizations of a public nature, and regional or international scope including non-governmental or humanitarian organizations working in the field of public health is not easy. Many problems related to planning of the study and the lack of relevant methodological tools to better decode the organizational phenomena and make sense of them both descriptive and prescriptive often pose significant obstacles. This is to contribute to solving these problems that should adopt a pluralistic approach or policy based on methodological triangulation. It is the integration of the various methodological tools (triangulation of quantitative and qualitative methods and triangulation of data sources). The use of this approach has allowed to know the story of three regionally-based organizations based in Côte d’Ivoire and Mali, their actual performance and future prospects. We have also been able to verify the rigor of the method, especially in terms of relevance of the observations and criterion validity of the content of investigations
Keywords: Africa, Evaluation, Organizational Performance, Triangulation, public health