The definition of a sop is a standard operating procedure, which is a set of instructions that describes how a particular task should be performed. It is a written document that outlines the steps to be taken in order to achieve a specific goal. It is a systematic approach to ensure that a task is done correctly and efficiently. A sop is used to ensure that all employees are aware of the steps they need to take to complete a task and that the same steps are followed each time. It is also used to ensure that all safety protocols are followed and that any potential risks are identified and addressed. A sop can be used in a variety of settings, including businesses, educational institutions, and government agencies. It is an important tool for ensuring that tasks are completed in a consistent and efficient manner.