International projects are tendered in many different ways and can range from competitively bid to PPP (Public Private Partnerships). We have not had time to prepare a WBS (Work Breakdown Structure), we do not have expertise in this type of work, and we need to find a partner. So we prepare an estimate defined as "Rough Order of Magnitude" we would expect an accuracy of this estimate as : 1. /- 10% 2. /- 50% 3. /- 0%