Thời gian là một thuộc tính của vận động và phải được gắn với vật chất, vật thể. Các nhà triết học đúc kết rằng "thế giới" vận động không ngừng (luôn vận động). | PUBLIC BOUNDARIES EVOLUTION 57 on the distribution of territory delimitation involves the selection of a specific boundary site demarcation concerns the marking of the boundary on the ground and administration relates to the provisions for supervising the maintenance of the boundary ibid. p. 69 . evolution in position This means how long the boundary has occupied particular sites ibid. p. 77 . evolution in the state functions Evolution of state functions applied at the boundary means the effectiveness with which the boundary marks the limits of sovereignty ibid. p. 80 . Analysing the evolutionary aspects of political boundaries represents the study of human activities that have been relevant to the location of a particular boundary. The STDM considered here was formulated and constructed using evolution in definition. This process is characterised by the changes related to different states acquired by every individual boundary after going through its historical events allocation delimitation demarcation administration . Rackham 1987 pp. 32-3 identified from Booth 1980 six different states which most public boundaries can go through Draft proposed but not yet confirmed by an act or order. Proposed works referred to in an order related to a physical feature which has not yet been constructed . a new road . New made in an act or order but not yet mered. Disputed mered but not certified because of some disagreement. Old ascertained on the ground certified by the relevant authorities and therefore fixed in alignment. Obsolete old boundary no longer used to demarcate administrative areas obsolete boundary may revert to old boundary if it is reused at a later date to demarcate an administrative area . The main challenge in designing a spatio-temporal data model for this knowledge domain is to handle systematically the changes related to different states draft proposed work new disputed old obsolete acquired by every public boundary after going through its historical .
