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Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) eMRA: MDRÀÇ °³³ä°£ °ü°è¼ºÀ» °í·ÁÇÑ MRA È®Àå
¿µ¹®Á¦¸ñ(English Title) eMRA: Extension of MRA Considering the Relationships Between MDR Concepts
ÀúÀÚ(Author) ÁÖ¿µ¹Î   ±èÀå¿ø. Á¤µ¿¿ø. ¹éµÎ±Ç   Young-min Joo   Jangwon Kim   Dongwon Jeong   Doo-Kwon Baik  
¿ø¹®¼ö·Ïó(Citation) VOL 02 NO. 03 PP. 0161 ~ 0172 (2013. 03)
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(Korean Abstract)
¸ÞŸµ¥ÀÌÅÍ ·¹Áö½ºÆ®¶ó(Metedata Registry, MDR)´Â µ¥ÀÌÅͺ£À̽º °£ µ¥ÀÌÅÍ ±³È¯ ¹× °øÀ¯¸¦ À§ÇØ ISO/IEC¿¡¼­ °³¹ßÇÑ ±¹Á¦ Ç¥ÁØÀ̸ç, ÀÇ·á ¼­ºñ½º, ¼­Áö, ȯ°æ µî ´Ù¾çÇÑ µµ¸ÞÀο¡¼­ µ¥ÀÌÅÍ °øÀ¯ ¹× ÅëÇÕÀ» À§ÇØ »ç¿ëµÇ°í ÀÖ´Ù. ±×·¯³ª MDR Ç¥ÁØÀº ¸ÞŸµ¥ÀÌÅÍ µî·Ï ¹× ÀúÀåÀ» À§ÇÑ ¸ÞŸ ¸ðµ¨¸¸À» Á¤ÀÇÇÏ°í Àֱ⠶§¹®¿¡ ÀÌ ½Ã½ºÅÛµéÀº ¼­·Î ´Ù¸¥ ¹°¸®Àû ±¸Á¶¸¦ °¡Áö°Ô µÈ´Ù. ÀÌ·Î ÀÎÇØ MDR ½Ã½ºÅÛ °£ ºÒÀÏÄ¡°¡ ¹ß»ýÇÏ°í ¸ÞŸµ¥ÀÌÅÍÀÇ »óÈ£¿î¿ëÀ» À§ÇØ Ãß°¡ÀûÀÎ ºñ¿ëÀÌ ¹ß»ýÇÑ´Ù. ÀÌ·¯ÇÑ ¹®Á¦¸¦ ÇØ°áÇϱâ À§ÇØ ISO/IEC 13249-8 Metadata Registry Access(MRA)°¡ °³¹ß Áß¿¡ ÀÖÀ¸¸ç, MRA´Â »óÀÌÇÑ MDR ½Ã½ºÅÛ¿¡ ÀÏ°üµÈ ¹æ¹ýÀ¸·Î Á¢±ÙÇÒ ¼ö Àִ ǥÁØ ÀÎÅÍÆäÀ̽ºÀÌ´Ù. ±×·¯³ª MRA´Â MDR Ç¥ÁØ¿¡ Á¤ÀǵǾî ÀÖ´Â °³³ä Áï, Ŭ·¡½º °£ °ü°è¼ºÀ» °í·ÁÇÏÁö ¾Ê´Â´Ù. ÀÌ´Â ºÎÁ¤È®ÇÑ °á°ú¸¦ »ý¼ºÇÒ ¼ö ÀÖÀ¸¸ç, °¢ MDR ½Ã½ºÅÛÀÇ ¹°¸®Àû ±¸Á¶¸¦ °í·ÁÇÏ¿© ÁúÀǸ¦ ¸ðµ¨¸µÇÏ°í ÀçÀÛ¼ºÇÏ´Â Ãß°¡ÀûÀÎ ºñ¿ëÀÌ ¹ß»ýÇÑ´Ù. ÀÌ ³í¹®¿¡¼­´Â Ŭ·¡½º °£ °ü°è¼ºÀ» °í·ÁÇÑ È®ÀåµÈ ÀÎÅÍÆäÀ̽º eMRA(Extended MRA)¸¦ Á¦¾ÈÇϸç, ºñ±³ Æò°¡¸¦ ÅëÇØ È®Àå ÀÎÅÍÆäÀ̽ºÀÇ ÀåÁ¡À» ±â¼úÇÑ´Ù. eMRA´Â MDRÀÇ °³³ä°£ °ü°è¼ºÀ» Á¤ÀÇÇÏ¿© ÁúÀÇ ¸ðµ¨¸µ°ú ½Ã½ºÅÛÀÇ ÂüÁ¶¹«°á¼º Ãø¸é¿¡¼­ MRAº¸´Ù ¿ì¼öÇÑ ¼º´ÉÀ» °¡Áø´Ù.
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(English Abstract)
Metadata registry (MDR) is the international standard, developed by ISO/IEC for exchange and sharing data between databases. Many MDR systems are used in diverse domains such as medical service, bibliography, environment for sharing and integrating data. However, those systems have different physical structures individually because the MDR standard defines only the metamodel for registering and storing metadata. It causes heterogeneity between the system structures and requires additional cost to maintain interoperability. ISO/IEC 13249-8 Metadata Registry Access (MRA) is developing as an international standard to provide a consistent access facility to data stored in different metadata registries. However, MRA does not consider the relationships between the concepts (classes) defined in the MDR specification. It causes that incorrect query results returned from MDR systems. It also requires additional cost of modeling and rewriting queries to reflect each physical model. Therefore, this paper suggests eMRA which considers the relationships between the concepts in MDR. The comparative evaluations are described to show the advantages of eMRA. eMRA has superior performance in query modeling and referential integrity than MRA defined by the relationship between the concept of MDR.

Å°¿öµå(Keyword) ¸ÞŸµ¥ÀÌÅÍ ·¹Áö½ºÆ®¸®   ISO/IEC 13249-8   MRA   SQL   Ç¥ÁØ ÀÎÅÍÆäÀ̽º   Metadata Registry   Standard Interface  
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