Organising Uncertain Boundaries, Changdong Depot Part 1 Project 2019 Sung O Yoo Korea National University of Arts | South Korea Cryptograph technology manipulates the boundary between data and users by the way of sharing mathematical keys. Producing the uncertain numbers encourage the complexity of the keys which, in turn, produce more a robust boundary between public and private. “ROLLING LIBRARY”, the mechanical cylinder, represents this undetermined boundary. Finding performances in the “ROLLING LIBRARY” codified and recorded in order to respond as a ‘customised library’ for the later visits. This mechanical flexibility is one way of response to undetermined boundary. Various elements can be found in Korean traditional house, ‘Hanok’, that regulate undetermined boundaries among rooms and exterior area. – ‘Maru’ and ‘Madang’. Finding such elements on doomed locomotive depot and reorganising them as educating campus. Sung O Yoo Tutor(s) Jong Kyu Kim