Urgency of accomplishing a certain task within any project is always considered as a common situation. Improvisation happens when the project manager must deal with unexpected situations within a specific schedule and limited data. This paper aims to present a review of how improvisation has been addressed through the literature within projects and project management perspectives and what are the factors that affect it. This review has been undertaken by defining project, project management, improvisation, and how it leads to project success. This has been considered by analyzing various studies related to improvisation. The paper will help the project managers to understand the concept of improvisation, how it is important to project, and the required factors to be considered to obtain successful project outcomes. It has been proved in this research that a project manager to be able to improvise successfully must have knowledge, experience, and being trained. This research will help project managers to understand how to improvise
successfully by knowing the required skills to focus on to improve themselves. Moreover, this research suggested a model that includes factors to be evaluated based on their impact on successful improvisation. The suggested factors
that could impact the project manager decision are experience, age, and training. At the end, a successful improvisation will result in successful project outcome when the project is within the schedule, budget, and meets the quality
requirement. In addition, the introduced model and hypotheses can be evaluated on further study and more factors can be considered.

Keywords
Factors, Knowledge, Project, Project Management, and Improvisation.