The definition of a Standard Operating Procedure (SOP) is a set of instructions that provide a detailed description of how a task or process should be completed. It is a document that outlines the steps necessary to complete a task, as well as the materials, tools, and resources needed to do so. SOPs are used to ensure that a task is completed consistently and correctly, and they can also be used to train new employees. They are an important part of any business, as they help to ensure that tasks are completed efficiently and effectively. SOPs can also be used to document and track the progress of a task, as well as to identify areas of improvement. Ultimately, SOPs are an invaluable tool for any business, as they help to ensure that tasks are completed correctly and efficiently.