Primavera Project Planner – also referred to as P3 – was project-management software developed by Primavera Systems. Oracle Corporation purchased Primavera in 2008. In 2011, Oracle replaced P3 with Primavera P6 Professional Project Management. Although P3 and P6 are designed with the same intended users and large-scale, capital-intensive projects in mind, the products differ somewhat in terms of usability, database technology and features. Writer Bio