What Extent Lesson Learned Can Help Project Mangers Under Probability of Success or Failure Circumstances?

Project managers usually pave the way toward achieving the project success. However, some projects completed either successfully or not, or may be left unfinished. Central to debate on the importance of the project management success and failure factors is the question of to what extent lesson learned from real life projects can help project managers under probability of success or failure circumstances? This paper provides some thoughts about success/failure criteria for taking preventative measures under conditions of confronting any threat of failing during managing projects. The real-life projects were analyzed and lesson learned extracted based on theoretical review. This paper proposes a project divisional clusters, and comprehensive success and failure paradigms which is also tabulated and discussed in a brief manner