Normal scheme refers to a standard procedure or system which is followed consistently. Some synonyms for normal scheme include routine, regularity, pattern, convention, protocol, and methodology. These words are often used in the context of business, education, and government regulations. A routine is a set of procedures that are habitually followed. Regularity implies a consistent pattern or frequency. Pattern refers to a predictable sequence of events or actions. Convention refers to an accepted norm or practice. Protocol is a formal set of rules or procedures. Methodology is a systematic approach to solving a problem or achieving a goal. All these synonyms convey the idea of a standard or established process.