Definition of Validation according to (FDA Guidelines 1987): "Establishing the documented evidence which provides a high degree of assurance that a specific process will consistently produce a product of predetermined specifications and quality attributes.” Definition of Validation according to according to (FDA Guidelines, 2011): “Process validation is defined as the collection & evaluation of data, from the process design stage through commercial production, which establishes scientific evidence that process is capable of consistently delivering quality product.” Definition of Validation according to according to (EU GMP 1997): “Action of proving, in accordance with the principles of Good Manufacturing Practice (GMP), that any procedure, process, equipment, material, activity or system actually leads to expected results.” Benefits of Validation: Validation can reduce costs by reducing, Rejects Reworks Relianc...