This article defines what a project charter is and why it is important. The project charter is a document that identifies your project vision and creates a fluid path for your project team. Identifying your objectives, stakeholders, methods, parameters, risks, and resources launches you on your way to project success.
The DPD is a method that uses colorimetric detection as a means to measure the amount of chlorine in a system. It stands for N,N-diethyl-p-phenylendiamine sulfate and the reaction between DPD and active halogens is what is detected and measured.
A more subtle pitfall relates to calibration error. Certain commercial electronystagmography systems calculate metrics by comparing the actual saccade displacement to the target displacement. In this situation, an incorrect calibration can cause a numerical dysmetria which is an artifact of the calibration error.