URL：https://www.collidu.com/media/catalog/product/img/1/3/13ec500f51217b23b4236311f8b36024d4113f89eee83778951440482369e4b5/functional-vs-non-functional-requirements-slide1.png
掲載元：https://www.collidu.com/presentation-functional-vs-non-functional-requirements
