An online query provides you with an estimate of the budget required to complete a project. You may order an online query only when the project is fully specified, i.e. when you have entered the physical characteristics and the requested base cost, unless you have specified that you want to develop the project at the minimum base cost.
The main advantage of online queries is that the information is provided to you immediately. Their main drawbacks are that their results are usually over-estimated by as much as 15% (or even more for the new Vodite technology), and that no more than five queries may be made in any given period.
If you change the specifications of your project (characteristics and/or requested base cost) after you have run the online query, you will no longer be guaranteed that the project will be completed within one period at the budget given by the query. In this case, you should run a new query to adjust your decisions according to the new specifications.