Interchange roles of formal and informal project management on business operational success

While there are numerous studies on factors affecting the project and business performance in the literature, no research published on the concurrent roles played by formal (FPM) and informal (IPM) project management on project success. The study's three main objectives are: first, give a conceptual framework for evaluating the individual and concurrent contributions of FPM and IPM to project success. Second, the project management methods' mediation effects on the link between senior management support and project success are evaluated. Third, the effects of using multiple environmental control variables are investigated. A sample of 103 small to medium-sized enterprises was used to collect managerial and business operational data. Using structural equation modelling and correlational relationships, ten different models are examined. The findings revealed that IPM has a partial mediation effect, whereas FPM has no effect. Furthermore, the analysis revealed that IPM has the greatest impact on project success. Integration of FPM and IPM with environmental factors is considered. These findings are explained in terms of business, economic, and commercial diversities.