This book discusses on the Quality of Services (QoS) in HealthCare and primarily talks about improvising the QoS for cardiac treatment, by optimizing the processing of ECG Signals. ECG Signals are analog signals generated by ElectroCardioGram (ECG) machine, which enables the doctors to understand the functioning of an individual’s heart. The change in the normal form of ECG signal of an individual, signifies some kind of heart health issue also known as Arrhythmias. The book consists of various chapters that begin with discussion on techniques to acquire the ECG signal up to optimized ways to process the ECG signals.