Every system should have one: A collection of properties which can be used as a criterion for evaluating the quality of a system.

@article{wilkerson-1985-every, author = {Leonard Wilkerson and Arthur Paul}, title = {{Every system should have one: A collection of properties which can be used as a criterion for evaluating the quality of a system}}, journal = {Information Processing and Management}, volume = {21}, number = {1}, pages = {45--49}, year = {1985}, url = {https://doi.org/10.1016/0306-4573(85)90127-X}, doi = {https://doi.org/10.1016/0306-4573(85)90127-X} }