Start-to-Start

Start-to-Start is a logical relationship that states that for one project to begin, another must also be underway. For example, the writing of a business proposal must have begun in order for editing of the proposal to take place. It is a correlation between two or more projects in which the initiation of one project depends upon when another project is begun. This is a concept that is often used by Project Management to coordinate resources and to best utilize the company’s time and financial assets.
Start-to-Start procedures are used to minimize downtime between projects and thereby maximize productivity. Also, using this methodology, Project Management has the ability to shuffle talented individuals between one project and another without compromising the integrity of either project. The advantages of using a Start-to-Start technique extend beyond Project Management to benefit the company as a whole. Instead of waiting for one project to reach its completion before beginning another, simultaneously utilizing necessary resources cuts costs and maximizing employee productivity. Given these benefits, it is not hard to understand why Start-to-Start is used to successfully.

This term is defined in the 3rd and the 4th edition of the PMBOK.