way. Following the problem diagnosis, the book will guide the user to the possible cause (s). Reaching out to the possible causes, the reader can find the one that fits more to the specified case and see the suggested solution. The author designed the book as simple as possible and preferred avoiding formal reading texts to prevent losing track in sorting the issue. Since the author prepared the present document for many levels' audience, it is suitable for understanding and uses from technician operators to drug formulation designers.