RationalPlan Project Management Software - Version 4.6 RationalPlan Project Management Software is a powerful project management software designed to assist project managers in developing plans, allocating resources, tracking progress, managing budgets and analyzing workload. Useful for project planning, project scheduling and project tracking.If you are working in the area of construction, engineering, services&consulting, business, software development or even working on a simple student project then you can use RationalPlan. It will help you to complete your project as scheduled, on time and within budget.If you have projects that are interrelated that is certain tasks from one project depend on other tasks from the other projects then you should opt in for a Multi Project version. Even more... you should choose a Multi Project version if you have resources that are working in multiple projects. Otherwise the Single Project version is enough.