In the
natural sciences a
protocol is a predefined written procedural method in the design and implementation of
experiments. Protocols are written whenever it is desirable to standardize a laboratory method to ensure successful
replication of results by others in the same laboratory or by other laboratories. Detailed protocols also facilitate the assessment of results through
peer review. In addition to detailed procedures and lists of required equipment and instruments, protocols often include information on safety precautions, the calculation of results and reporting standards, including statistical analysis and rules for predefining and documenting excluded data to avoid bias. Protocols are employed in a wide range of experimental fields, from
social science to
quantum mechanics. Written protocols are also employed in manufacturing to ensure consistent quality.