Abstract: The present invention relates to a structure in which modular units completed by using a plurality of frames are assembled, and provides a prefabricated modular unit assembly including: a first modular unit including a main communication control means, which transmits/receives data through wired/wireless communication between the modular units so that same can be controlled; and a second modular unit including an auxiliary communication control means for transmitting/receiving to/from a main communication control means of the first modular unit.

Abstract: A method and apparatus for managing metadata in a portable terminal are provided. The method includes, upon insertion of an external memory, acquiring a unique identifier of an external memory, determining whether a record having information identical to information of a file included in the external memory exists if the unique identifier is identical to a previously stored unique identifier, and reusing metadata included in the record if the record exists.

Abstract: A method and apparatus for managing metadata in a portable terminal are provided. The method includes, upon insertion of an external memory, acquiring a unique identifier of an external memory, determining whether a record having information identical to information of a file included in the external memory exists if the unique identifier is identical to a previously stored unique identifier, and reusing metadata included in the record if the record exists.

Abstract: A method and apparatus for preventing illegal reuse of Digital Right Management (DRM) content in a portable terminal is provided. The method includes performing user authentication when there is an attempt to restore a Right Object (RO) backup file, and identifying information on the RO backup file to be pre-restored in a terminal, and determining if the RO backup file can be restored according to the identified information.

Abstract: Provided are an apparatus and a method for saving a memory in a portable terminal, the method includes receiving a request for basic data and an address indicating a storage position of the basic data; determining whether the requested basic data has been stored in a paging buffer; if it is determined that the requested basic data has not been stored in the paging buffer, transforming the address of the requested basic data into an address of a corresponding compressed block using a block address table; searching the compressed basic data for the compressed block corresponding to the address of the compressed block; decompressing the searched compressed block; storing data of the decompressed block in the paging buffer; and returning the requested basic data stored in the paging buffer.

Abstract: A method and apparatus for managing metadata in a portable terminal are provided. The method includes, upon insertion of an external memory, acquiring a unique identifier of an external memory, determining whether a record having information identical to information of a file included in the external memory exists if the unique identifier is identical to a previously stored unique identifier, and reusing metadata included in the record if the record exists.

Abstract: A method and apparatus for preventing illegal reuse of Digital Right Management (DRM) content in a portable terminal is provided. The method includes performing user authentication when there is an attempt to restore a Right Object (RO) backup file, and identifying information on the RO backup file to be pre-restored in a terminal, and determining if the RO backup file can be restored according to the identified information.

Abstract: Provided are an apparatus and a method for saving a memory in a portable terminal, the method includes receiving a request for basic data and an address indicating a storage position of the basic data; determining whether the requested basic data has been stored in a paging buffer; if it is determined that the requested basic data has not been stored in the paging buffer, transforming the address of the requested basic data into an address of a corresponding compressed block using a block address table; searching the compressed basic data for the compressed block corresponding to the address of the compressed block; decompressing the searched compressed block; storing data of the decompressed block in the paging buffer; and returning the requested basic data stored in the paging buffer.

Abstract: Disclosed herein is a method of designing a query classificaton component for a multilevel DataBase Management System (DBMS). The method includes determining whether a plan tree, which is used for query processing, is input; if the plan tree is input, designing the query classification component to output locations for respective tables, at which data must be referenced in conjunction with the plan tree, and corresponding predicates; and transferring the locations for respective tables and the corresponding predicates to respective storage managers and causing each of the storage managers to process corresponding data.