The MFER is standard which can describe every medical waveforms.Since the MFER is focused on the medical waveform and can simplely describe them, MFER expects that MFER is widly utilized in clinical sectors and for research, education etc.... Medical waveforms such as Electrocardiogram, Electroencephalogram, Blood pressure waveform, etc., is widely utilized at clinical area for a physiological examination, an electronic medical record and many purpose, such as investigation, research, education, etc.. Medical waveform is used by various combinations in various forms for a purpose or an intention. For example, ECG is very utilized medical waveform in clinical arena, and resting 12 lead ECG is used waveform most, in particular. A cardiologist makes diagnosis the ECG usually measured for ten to fifteen seconds, however more long period sometimes needs to grasp the patient heart condition like an arrhythmia. Also there are many other method using ECG such as Holter ECG, monitoring ECG,..