Departmental Bulletin Paper 田窪/矢野モデルに基づくネットワーク情報資源の再考とデジタルデータベースの劣化
From 1 to 0? : Data Preservation and Accessibility in the Age of Information Ubiquity

藤岡, 洋

168pp.225 - 276 , 2015-12 , 東京大学東洋文化研究所 , Institute for Advanced Studies on Asia, The University of Tokyo
This paper attempts to re-think the meaning of Digital Media in Internet era in according to the “Message-Carrier Model” by Naoki Takubo the model dubbed “Quantity of Receivers which the Transmitter of Media supposes” by Masataka Yano. Takubo’s Model proceeds from the perspective of the construction of Digital Media. In this model, “the Carrier” of which Digital Media are considered only one part is monaural. In contrast, this paper argues that the Carrier is built up from several layers. These are: 1) the Material Layer, 2) the Format Layer, 3) the Program Layer and 4) the Data Layer. Especially the third and fourth layer have some mobilities due to TCP/IP as Format Layer in Internet Era. The Program Layer acquires a character defined the recursivity as it comprises the composition of programs within the uncompleted programs (compare, for instance, the recursive definition on LISP). In other words, i.e. the program is not the stock/ commodity, but also a co-programming work. The Program Layer has changed into what should be called the Recursive Program Layer in Internet era. The Data Layer, on the other hand, bears the earmarks of a sort of programmability that keeps to ready for being programmed the digital data is not only the material, but also a material that is waiting for be programmed. In the Internet era, the Data Layer has been transformed into what should be called Programable Data Layer. Yano’s Model is, as it said, considers Media relative to its handler, e.g. the author/producer - the user. This paper stresses that a yet different relationship should be added to . In the Internet era, somebody connecting to an element of information in Internet takes the multi position of both transmitter and receiver at the same time, and this in a very strict sense -because of the character of conx nection by TCP/IP. If looked at from this perspective, Digital Media acquire a character that is still different, i.e. as a gateway to programs of contents by users. If these interpretations were applied to Digital Database in ,the meaning of “lost” or “deterioration” would change into the likes of “useless” or “forgetting”. Data preservation is thus not only a matter of ‘storing or saving’ data, but also guaranteeing“accessibiy to them”. Such guarantee presupposes two conditions. . On the one hand, it presupposes , it is “the condition-free possibility to program each databases by anyone via APIs”. It hints at the possibility of expanding the means of manipulating data and ensuring to keep the recursive way of the collaboration with Databases, i.e, “Re-Constituting a Database by some Databases”. To keep the open accessability is in other words identical to saving databases. Second, scholars should become aware of their responsibility in the age of information ubiquity. We need to recognize the importance of “brushing the Quality of Data in a recursive manner” by means Internet. It it the most important thing for scholar’s works in domain of databases not to constrain themselves to elaborate design of the interface of digital databases or intricate programming, but also , to collect the current databases and to costruct and preserve a data matrix . Finally, the meaning of using digital databases for scholars would be to build their databases in comparison to ones also, data collection and presentation should be considered as a means of scientific publishing in its own right.

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