Introduction

Soft Computing is a computing paradigm that is tolerant of imprecision, uncertainty and partial truth. The motivation behind the paradigm is human mind. Conventional computing is considered to be ‘hard’, because it is limited to represent human like ‘vagueness’. Soft computing provides the opportunity to represent ‘ambiguity’ in human thinking with the real life ‘uncertainty’. The concept is proved to be useful for many real life problems. The principal constituents of soft computing are Fuzzy, Neuro, Evolutionary and Probabilistic computing techniques. This is a partnership, where each technique contributes a unique methodology for addressing problems in its domain.