1. Introduction
There is a significant growth in the adoption of project management disciplines to accomplish work in different sectors and industries Economic pressure to reduce time to market means that projects rarely operate in isolation within an organization and are usually delivered to satisfy broader strategic priorities . This pressure has driven an increase in the number of projects undertaken simultaneously within organizations, and consequently the complexity of managing their interdependencies and multiple implementations The management of multiple projects – including program management and portfolio management – is now the dominant model in many organizations for strategy implementation, business transformation, continuous improvement and new product development As the use of multi projects grows, the value created by these projects is subjected to more scrutiny. For example, Marnewick and Labuschagne, through action research, found that many projects are not completed within the defined time and budget and do not deliver the expected benefits to the organization. This appears to be largely due to the fact that projects are disconnected, managed as silos, or not aligned or governed as one seamless portfolio . As a result, the management literature has recognized the importance of structured, disciplined management of multiple projects, advocating that, to create value for their organizations, projects are aligned with corporate strategy as part of the approval and initiating processes