日本における「近現代建築資料」の特性把握

統計的仮説検定とアーカイブズ学を用いて

抄録

 1. Introduction
 This paper examines the characteristics of architectural documents in Japan using quantitative analysis. The research objective was the result of a nationwide survey entrusted by the Agency for Cultural Affairs to the Architectural Institute of Japan. Although the survey's results help understand the qualitative characteristics of the documents as “diversity,” quantitative analysis methods failed to support such features objectively. In this paper, we first organized (chap. 3) and tabulated (chap. 4) the data of the survey results, and then performed analysis using statistical hypothesis testing (chap. 5). Finally, we discussed the test results based on archival science (chap. 6).
 2. Outline of the survey
 This chapter contains the background of this survey (2.1) and elements of the “Modern Architectural Documents List in Japan,” thus summarizing the survey results (2.2). The list consists of the following nine elements: 1. Reference Number, 2. Document Name, 3. Repository, 4. Repository Type, 5. Access Status, 6. Documents Summary, 7. Major Projects, 8. Criteria, and 9. Survey Scope.
 3. Organization of the Documents List
 We inspected the entire Documents List, and modified the data (3.1). By defining the attributes of “4. Repository Type,” we ensured consistency, which helped us reselect them (3.2). To examine the relationship between the Public Records and Archives Management Act, ordinances of local organizations, and the architectural documents, in Japan, we included a new element “Archives, etc.” in “4. Repository Type” (3.3).
 4. Tabulation of survey results
 The tabulation targets were “4. Repository Type,” “5. Access Status,” and “8. Criteria.” For each of the eight attributes of “4. Repository Type,” we tabulated the distribution for the attributes of the other two elements. From the results, we obtained five hypothetical characteristics of the documents.
 5. Analysis by statistical method
 The adequacy of the hypothetical characteristics was analyzed using statistical hypothesis testing. We conducted a chi-square test with qualitative variables of “4. Repository Type” and “5. Access Status” or “4. Repository Type” and “8. Criteria.” The test revealed whether the variables were independent or had statistical significance. Based on the results, we modified the hypothetical characteristics of the last chapter, and indicated the seven characteristics.
 6. Discussion
 The contexts of the seven characteristics from the test were discussed based on archival science. Consequently, considering the “Passage of Time,” we classified the characteristics of the documents as follows: (1) various conditions governing access; (2) association between museums, libraries, archives, and regional characteristics; and (3) client documents. In addition, we noted that issues remaining in the survey itself have limited the analysis.
 7. Conclusion
 In this paper, we reviewed the characteristics of “Modern Architectural Documents in Japan” by organizing, tabulating, and analyzing the “Modern Architectural Documents List in Japan,” which summarizes the nationwide survey of architectural documents. In other words, we clarified three characteristics of “diversity,” which are notable as characteristics of the architectural documents.