Patent Number: 
Section: claims

1. A nuclear power plant data-based design basis management system, the system comprising:a database that stores information on a plurality of design basis for defining a design basis document for configuration management in a nuclear power plant, information on categories corresponding to the design basis, among a plurality of categories, and an associative relationship between the plurality of design basis;a control module that, when a particular design basis corresponding to a particular one of the plurality of categories is selected by a user terminal, extracts provided information of the selected particular design basis from the database, the provided information of the particular design basis comprising information on the particular design basis and information on associated design basis having an associative relationship with the particular design basis and falling into other categories; andan interface module for providing the information extracted by the control module to the user terminal via a predetermined user interface,wherein the plurality of categories comprise design requirements (REQ), at least one design basis specification (DBS) for satisfying the design requirements, at least one structure, system, and component specification (SSCS) for satisfying the design basis specifications, supporting operation information (SOI), design parameters (DP), and supporting design information (SDI) for satisfying the structure, system, and component specifications, and physical structure, system, and component specification data (PSSCD) complying with the supporting operation information (SOI), design parameters (DP), and supporting design information (SDI). 2. The system of claim 1, wherein the associative relationship is classified as a higher-tier, lower-tier, or same-tier category relationship between the design basis, wherein, when the particular design basis is selected, the control module provides the user terminal with associated design basis corresponding to higher-tier, lower-tier, and same-tier categories of the particular design basis in a distinguishable way. 3. The system of claim 2, wherein the design requirements (REQ) are defined as a top-tier category, the design basis specifications (DBS) are defined as a lower-tier category of the design requirements (REQ), the structure, system, and component specifications (SSCS) are defined as a lower-tier category of the design basis specifications, the supporting operation information (SOI), design parameters (DP), and supporting design information (SDI) are defined as lower-tier categories of the structure, system, and component specifications, the physical structure, system, and component specification data (PSSCD) is defined as a lower-tier category of the supporting operation information (SOI), design parameters (DP), and supporting design information (SDI), and the supporting operation information (SOI), design parameters (DP), and supporting design information (SDI) are defined as same-tier categories. 4. The system of claim 1, wherein the database stores information on a reference document for each of the design basis, and, when the particular design basis is selected, the control module provides information on the reference document through the interface module if there is a reference document for the particular design basis. 5. The system of claim 1, wherein the database stores tag information for a facility corresponding to the physical structure, system, and component specification data (PSSCD). 6. The system of claim 5, wherein the database further comprises physical plant configuration information for a facility corresponding to the physical structure, system, and component specification data (PSSCD), and, when the physical structure, system, and component specification data is selected, the control module provides the physical plant configuration information. 7. The system of claim 1, wherein the control module creates traceable associative relationship information hierarchically representing information on a plurality of design basis having an associative relationship, from particular physical structure, system, and component specification data to the design requirements category, which is a top-tier category corresponding to the particular physical structure, system, and component specification data, and provides the created traceable associative relationship information to the user terminal. 8. The system of claim 7, wherein, when a certain design basis included in the traceable associative relationship information is selected, the user provides provided information of the selected design basis to the user terminal. 9. A nuclear power plant data-based design basis management method, the method comprising:storing, by a nuclear power plant data-based design basis management system, information on a plurality of categories for defining a design basis document for configuration management in a nuclear power plant, information on at least one design basis included in each of the categories, and an associative relationship between the plurality of design basis;when a particular design basis corresponding to a particular one of the plurality of categories is selected by a user terminal, extracting, by the nuclear power plant data-based design basis management system, provided information of the selected particular design basis from the database, the provided information of the particular design basis comprising information on the particular design basis and information on associated design basis having an associative relationship with the particular design basis and falling into other categories; andproviding, by the nuclear power plant data-based design basis management system, the extracted information to the user terminal via a predetermined user interface. 10. The method of claim 9, wherein, in the step of providing, by the nuclear power plant data-based design basis management system, the extracted information to the user terminal via a predetermined user interface, the nuclear power plant data-based design basis management system provides the user terminal with associated design basis corresponding to higher-tier, lower-tier, and same-tier categories of the particular design basis in a distinguishable way. 11. The method of claim 9, wherein, when a particular design basis corresponding to a particular one of the plurality of categories is selected by the user terminal, in the step of extracting provided information of the particular design basis from the database by the nuclear power plant data-based design basis management system,if the particular design basis is the physical structure, system, and component specification data (PSSCD), the nuclear power plant data-based design basis management system extracts physical plant configuration information for a facility corresponding to the physical structure, system, and component specification data and includes the same in the provided information of the particular design basis. 12. The method of claim 9, further comprising:creating, by the nuclear power plant data-based design basis management system, traceable associative relationship information hierarchically representing information on a plurality of design basis having an associative relationship, from particular physical structure, system, and component specification data to the design requirements category, which is a top-tier category corresponding to the particular physical structure, system, and component specification data; andproviding the created traceable associative relationship information to the user terminal. 13. A computer program installed on a data processor and recorded to perform the method of claim 9.