Globally, virtually all companies pursue the same goals, which range from increasing revenues and attracting new customers to nurturing a good image, while using the least possible resources. To achieve those goals, many available IT (information technologies) tools and systems have to be used to make the process easier. “Information systems and IT become the metaphors that provide different tools and techniques to the businesses that intend to overcome the challenge of these environments”. One of those systems or tools is Business Intelligence (BI). What are the prerequisites to the adoption of BI tools by a given company? What are the significant values that prove that BI leads better performance? To answer to these questions, we have decided to investigate the impact of BI on firm’s performance in the Cameroonian context. Our research model is built on the TAM (Technology Acceptance Model), the Extended TAM and the IS Success Model. To test and analyze our proposed model, we used a mixed research method.