This paper analyzes the causes that literature assigns to these complaints and concludes that they come fundamentally from the variety of issues that affect the execution of every project because of its character as a unique product or service and unexpected events that occur due to external factors.
El informe analiza las causas que la literatura asigna a estos reclamos y concluye que ellas provienen fundamentalmente de la variabilidad que afecta a la ejecución de todo proyecto por su carácter de prototipo y a los imprevistos del medio externo.