Abstract: A non-transitory, computer-readable recording medium having stored therein a program for causing a computer to execute a process includes: specifying a relevance between machine part documents which include design information of machine parts, and specifying a keyword of each of the machine part documents; specifying a relevance between electronic part documents which include design information of electronic parts which control the machine parts, and specifying a keyword of each of the electronic part documents; specifying a relevance between program documents which include operations of programs causing the electronic parts to perform a processing, and specifying a keyword of each of the program documents; and associating documents having a common keyword among the specified keywords of the program documents, the electronic part documents, and of the machine part documents so that the program documents, the electronic part documents, and the machine part document are associated with each other, respectively.

Abstract: A computer refers to a first document, second documents related to the first document, test documents related to the respective second documents, and test results associated with the respective test documents. The first document defines a first requirement. The second documents define functions of the first requirement. The computer calculates, on basis of the test results and a total number of test items included in all of the test documents, a degree of difficulty in realizing the first requirement.

Abstract: A computer refers to a first document, second documents related to the first document, test documents related to the respective second documents, and test results associated with the respective test documents. The first document defines a first requirement. The second documents define functions of the first requirement. The computer calculates, on basis of the test results and a total number of test items included in all of the test documents, a degree of difficulty in realizing the first requirement.

Abstract: A non-transitory, computer-readable recording medium having stored therein a program for causing a computer to execute a process includes: specifying a relevance between machine part documents which include design information of machine parts, and specifying a keyword of each of the machine part documents; specifying a relevance between electronic part documents which include design information of electronic parts which control the machine parts, and specifying a keyword of each of the electronic part documents; specifying a relevance between program documents which include operations of programs causing the electronic parts to perform a processing, and specifying a keyword of each of the program documents; and associating documents having a common keyword among the specified keywords of the program documents, the electronic part documents, and of the machine part documents so that the program documents, the electronic part documents, and the machine part document are associated with each other, respectively.