Disclosure of Invention
The present invention provides a file management system based on a mixed metadata scheme to solve the above technical problems in the prior art.
Therefore, the invention adopts the following specific technical scheme:
a archive management system based on a mixed metadata scheme comprises a classification scheme management module, a receiving and collecting module, an archive management module, a supervision and guidance module, a retrieval utilization module, a statistical analysis module, an identification and treatment module and a metadata scheme management module;
the system comprises a classification scheme management module, a data processing module and a data processing module, wherein the classification scheme management module is used for managing classification schemes of various categories of archival data and supports navigation classification of archival categories, years, organizations or problems and storage periods;
the receiving and collecting module is used for receiving and collecting the electronic file, the traditional carrier filing file or the traditional archive digital copy in an automatic or manual mode, ensuring the association of the content of the electronic archive with metadata and each component of the electronic archive when receiving and collecting the electronic file, and automatically recording and collecting the service behavior metadata;
the file management module is used for managing files of multiple types and self-defines newly added file types;
the supervision and guidance module is used for filing various door file materials, automatically checking file catalogues and complete standardization of metadata items, guiding the filing process, automatically forming a checking report, checking the complete standardization and accuracy of file contents according to the working process, automatically forming the checking report and reminding the checking contents of the file;
the retrieval utilization module is used for retrieving and utilizing the file on the basis of authority management;
the statistical analysis module is used for carrying out statistics on the resource room inventory, the file utilization condition, the data source and the quadrant on the entity files and the digital files;
the identification processing module is used for identifying and processing the door type file data and performing statistical management on the door type file data and the relevant service conditions;
the metadata scheme management module is used for customizing the archive library, the metadata and the archive types, providing metadata scheme management, configuring the metadata schemes of the respective door types according to the archive door types and supporting validity verification of the metadata.
Furthermore, the classification scheme management module performs classification setting based on the door types and classification scheme requirements of the files, and if the established classification scheme is adjusted, the adjusted classification scheme is subjected to classification navigation in the classification cataloguing module of the files.
Furthermore, the classification scheme management module comprises a file library structure definition sub-module, a file classification management sub-module, an attribute field customization sub-module and a basic information setting sub-module;
the file structure definition submodule is used for automatically creating a metadata scheme of an associated door for a newly added door, automatically constructing a file structure library, carrying out upper-level inheritance and lower-level inheritance, and simultaneously finishing definition, modification and sequencing of basic code data of important fields, wherein the important fields comprise a storage period, file number rule setting, other library customization and whole-parcel setting;
the file classification management submodule is used for simultaneously defining a plurality of door types and customizing the door types, supporting customization and allocation of different classification schemes to different whole files, setting different cataloguing functions for each set of classification, and simultaneously performing classification navigation and setting of subclass classification schemes in a bibliography link according to the difference of cataloguing fields;
the attribute field customizing submodule is used for customizing the attribute fields of the archive libraries under different classification schemes, automatically constructing related attribute elements according to a metadata scheme, supporting multi-level inheritance for a project library, a case library and a file library, and simultaneously supporting the functions of adding, deleting, sequencing and assigning and maintaining the attribute fields;
the basic information setting submodule is used for providing maintenance management of basic information of a classification scheme, file door types and metadata elements; the method comprises scheme name, scheme code, scheme ordering, gate class code, gate class ordering, gate class name, subclass setting and metadata definition maintenance.
Furthermore, the receiving and collecting module comprises a receiving and collecting submodule of the document electronic file, a collecting submodule of the photo electronic file, a collecting submodule of the audio and video electronic file and a receiving and collecting submodule of the mixed carrier;
the receiving and collecting submodule of the document electronic file is used for automatically receiving and registering the document electronic file formed in an office automation business system and corresponding metadata thereof, collecting non-document electronic files formed in each functional department of a department, storing the electronic files and components thereof in a classified and ordered manner, simultaneously supporting effective association of storing the electronic files, file contents and file metadata, and automatically recording and receiving and collecting business behavior metadata in the receiving process;
the receiving and collecting of the door archives comprises receiving and collecting of an office automation system of a pre-filing library and receiving and collecting of electronic files, and receiving and collecting support of the office automation system of the pre-filing library sets a function of receiving and collecting metadata items;
the acquisition submodule of the photo electronic file is used for supporting uploading or hanging a photo file, uploading a whole photo directory, uploading a leader lecture manuscript, automatically creating a photo archive file and an in-file, automatically extracting related structured metadata, establishing association between the electronic file and the metadata, and supporting batch acquisition of the electronic file, automatic identification of a character name and establishment of an aggregation relation of a plurality of same character photos;
the method comprises the steps that for photo electronic files, automatic capture of metadata contents for generating thumbnails and photo title is supported, batch receiving and collection of the photo electronic files and photo files of a plurality of catalogues are supported, different file files and in-file associations are automatically created according to a catalog structure, in-file adjustment and sorting and automatic generation of file numbers are supported, and meanwhile effective associations are established with file metadata;
the acquisition submodule of the audio and video recording electronic file is used for uploading or hanging the audio and video recording electronic file, automatically extracting related structural metadata, establishing association between the electronic file and the metadata and supporting batch acquisition of the electronic file;
for the recording electronic files, audio related metadata is supported to be provided, and batch receiving and collecting of the recording electronic files are supported; for the video electronic files, the automatic collection of video thumbnails and the display in a list are supported, and meanwhile, a plurality of video electronic files are received and effectively associated with file metadata;
the mixed carrier receiving and collecting sub-module is used for uploading or hanging electronic files of the mixed carrier, automatically extracting related structural metadata, automatically collecting metadata information of different carriers according to different carriers, establishing association between the electronic files and the metadata, and realizing batch collection of the mixed metadata electronic files;
the information in various related metadata schemes is supported for electronic files such as documents, photos and sound recordings.
Furthermore, when the newly added file door is customized, the functions of receiving and collecting electronic files, metadata and directory information, classifying and cataloguing, searching and utilizing, identifying, disposing and counting and printing are realized, the newly added electronic file door has the functions of setting a file library, a file library and a classification code, and simultaneously appoints the file library corresponding to the newly added door and modifies the appointed file library, file library attributes and metadata attribute values.
Furthermore, when the archives are searched and utilized, the searching mode comprises simple searching without setting searching fields, advanced searching for selecting a plurality of searching fields and logic relations thereof, and a user is supported to set any searching condition according to needs to search digital archives resources within the permission range of the user authority and accurately search in the searching result;
the cross-library retrieval supports keyword association retrieval, word segmentation retrieval, accurate retrieval, table display and composite display of retrieval results, supports classification display of documents, photos, audios and videos, and supports logical retrieval of various gate files;
professional file retrieval supports the convergence and series-parallel connection of files of various door types, and file retrieval is directly carried out on newly added file door types; and for the full-text retrieval result, displaying the retrieval result matching positioning item in the retrieval result in a navigation mode, and displaying in a highlight mode.
Further, the logical relationship comprises AND-way retrieval, fuzzy retrieval, precise retrieval and cross-archive-gate retrieval.
Furthermore, when the resource room inventory statistics is performed on the entity files and the digital files, the statistical conditions include file types, storage time limits, file formats, types, volumes and years;
the file utilization condition statistics of the entity files and the digital files comprises the steps of utilizing functional departments and numbers of the files, utilizing categories and numbers of the entity files and the digital files and the downloading and browsing amount of the digital files, realizing annual report statistics data statistics according to the work of the files and displaying a statistical report;
when the data source statistics is carried out on the entity files and the digital files, the total data volume of the auxiliary traditional carrier bibliography and the electronic file filing of each door type is counted;
the quadrant statistics of the entity archive and the digital archive supports multi-dimensional step statistics.
Furthermore, the identification handling module supports the archive management personnel to execute the destroying and transferring functions according to the written identification report by directly modifying the storage period, or supports the configuration and implementation of the identification examination and approval process and retains the destroying records according to the actual requirements.
Furthermore, the metadata scheme management module supports management of different metadata items and regular verification of different metadata elements, and provides a plurality of archive categories.
The invention has the beneficial effects that: the invention can carry out unified and efficient management on multi-carrier files by carrying out targeted analysis and description aiming at the management mode of the existing electronic files, solves the problem that the existing single file system cannot solve the comprehensive management of multi-carrier door types, realizes the centralized and unified comprehensive management of case file files including paperwork materials, photo materials and audio and video materials, such as law enforcement types, litigation types, tax inspection types and the like, respectively carries out the design of own metadata systems, carries out the integral association through unified electronic file case numbers, forms different carriers belonging to the same case, carries out the dispersed storage and the comprehensive management, solves the problem that the comprehensive management of the multi-carrier can not be realized for a long time, and can continuously carry out the complete, effective and comprehensive management on various files such as increasingly complex engineering construction adaptive video monitoring and the like.
Aiming at the mixed metadata scheme, the system supports the management of a multi-carrier mixed metadata scheme, the management and the definition of mixed document material metadata, the management and the definition of mixed photo metadata and the management and the definition of mixed video and audio metadata.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to the embodiment of the invention, the archive management system based on the mixed metadata scheme is provided, and the problems of comprehensive definition and management of the electronic archive are mainly solved through the mixed metadata scheme.
The invention relates to electronic file management which provides a mixed metadata scheme according to the multi-carrier management characteristics of mixed files by defining various metadata scheme systems in a classified manner. Through the definition of each type of carrier metadata scheme, the management of each type of metadata only manages the material content of the type, and the various types of metadata schemes are gathered to form a metadata scheme set, so that the file management difficulty of multi-carrier mixed files is thoroughly solved, and the comprehensive description, the comprehensive definition, the comprehensive storage and the comprehensive management of multi-carrier multi-format mixed files in the electronic file era are realized.
In the prior art, a digital archive management system managed by a mixed metadata scheme is not available, the management concept and technical implementation of the mixed metadata scheme are originally proposed by comprehensive research, deep analysis, deep thinking and aiming at practical problems, and the establishment of a multi-carrier and multi-format mixed metadata scheme system is beneficial to comprehensive management and utilization of the current complex door electronic archives.
Referring to the drawings and the detailed description, as shown in fig. 1, a file management system based on a mixed metadata schema according to an embodiment of the present invention includes a classification schema management module, a receiving and collecting module, a file management module, a supervision and guidance module, a retrieval and utilization module, a statistical analysis module, an identification and handling module, and a metadata schema management module;
the system comprises a classification scheme management module, a classification rule management module and a classification rule management module, wherein the classification scheme management module is used for managing classification schemes of various categories of archival data and supports navigation classification of bibliographic value domains such as archival categories, years, organizations or problems, storage period and the like;
the archives classification after appointing can classify the setting according to the door class of archives and this unit's classification scheme demand, and if adjust the classification scheme of establishing, make the classification scheme after the adjustment carry out the navigation of classifying in the categorised cataloguing module of archives to the required type's of quick location archives.
The classification scheme management module comprises a file library structure definition submodule, a file classification management submodule, an attribute field customization submodule and a basic information setting submodule;
the archive structure definition submodule is linked with metadata scheme management and used for automatically creating a metadata scheme of an associated door type for a newly added door type, automatically constructing an archive structure library, carrying out upper-level inheritance and lower-level inheritance, and simultaneously finishing definition, modification and sequencing of basic code data of important fields, wherein the important fields comprise a storage period, file number rule setting, other library customization, whole-file setting and the like;
the file classification management submodule is used for simultaneously defining a plurality of door types and customizing the door types, supporting customization and allocation of different classification schemes to different whole files, setting different cataloguing functions for each set of classification, and simultaneously performing classification navigation and setting of subclass classification schemes in a bibliography link according to the difference of cataloguing fields;
the attribute field customizing submodule is used for customizing attribute fields of the archive libraries under different classification schemes, automatically constructing related attribute elements according to a metadata scheme, supporting multi-level inheritance for a project library, a case library and a file library, reducing file records for assisting paper archive management, and simultaneously supporting maintenance functions of addition, deletion, sequencing, assignment and the like of the attribute fields;
the basic information setting submodule is used for providing maintenance management of basic information of a classification scheme, file door types and metadata elements; the method comprises the setting of basic information such as scheme names, scheme codes, scheme sequencing, gate codes, gate sequencing, gate names, subclass setting, metadata definition maintenance and the like.
The receiving and collecting module is used for receiving and collecting the electronic file, the traditional carrier filing file or the traditional archive digital copy in an automatic or manual mode, ensuring the association of the content of the electronic archive with metadata and each component of the electronic archive when receiving and collecting the electronic file, and automatically recording and collecting the service behavior metadata;
the receiving and collecting module comprises a receiving and collecting submodule of a document electronic file, a collecting submodule of a photo electronic file, a collecting submodule of a recording and video electronic file and a receiving and collecting submodule of a mixed carrier;
the receiving and collecting submodule of the document electronic file is used for automatically receiving and registering the document electronic file formed in a business system such as office automation and the like and corresponding metadata thereof, collecting non-document electronic files formed in each functional department of a department, storing the electronic files and components thereof in a classified and ordered manner, simultaneously supporting the effective association of storing the electronic files, file contents and file metadata, and automatically recording and receiving and collecting the business behavior metadata in the receiving process;
the receiving and collecting of the door archives comprises receiving and collecting of an office automation system of a pre-filing library and receiving and collecting of electronic files, wherein the receiving and collecting support of the office automation system of the pre-filing library sets a function of receiving and collecting metadata items, and the integrity of the metadata items set by the filing system is ensured;
the acquisition submodule of the photo electronic file is used for supporting an electronic file forming department or an archive department to upload or hook a photo file, upload a whole photo directory, upload a leader lecture manuscript, automatically create a photo archive file and an in-file, automatically extract related structured metadata, establish association between the electronic file and the metadata, and support batch acquisition of the electronic file, automatically identify the name of a person and establish an aggregation relation of a plurality of same person photos;
the method comprises the following steps that for photo electronic files, metadata contents for generating thumbnails, photo title names and the like are supported to be automatically captured, effective association of the electronic files and metadata information is guaranteed, batch receiving and collecting of the photo electronic files and photo files of a plurality of catalogs are supported, different file case files and in-file association are automatically created according to the catalog structure, adjustment and sorting in the files and automatic generation of file numbers are supported, and effective association with file metadata is established;
the acquisition submodule of the audio and video recording electronic file is used for supporting an electronic file forming department or a file department to upload or connect audio and video recording electronic files (audio recording, video recording and the like), automatically extracting related structural metadata, establishing association between the electronic files and the metadata and supporting batch acquisition of the electronic files;
for the recording electronic files, audio related metadata (effective association of the electronic files and metadata information is ensured) is supported, and batch reception and collection of the recording electronic files are supported; for the video electronic files, the automatic collection of video thumbnails and the display in a list are supported, and meanwhile, a plurality of video electronic files are received and effectively associated with file metadata;
the mixed carrier receiving and collecting sub-module is used for supporting an electronic file forming department or a file department to upload or connect the electronic file of the mixed carrier, automatically extracting related structural metadata, automatically collecting metadata information of different carriers according to different carriers, establishing association between the electronic file and the metadata and realizing batch collection of the mixed metadata electronic file;
the method supports information in various related metadata schemes for electronic files such as documents, photos and sound recordings, and ensures effective association of various electronic files and metadata information.
The file management module is used for managing multi-door files, and is provided with a user-defined newly-added file door besides file door management such as documents, professions, sound images (photos, sound recordings and videos), science and technology, accounting, real objects, other types and the like, and the newly-added door files do not influence the content of the existing file doors and the category expansion of the existing file doors;
when the new file door is customized, the functions of receiving, collecting, classifying, cataloguing, retrieving, utilizing, identifying, disposing, counting, printing and the like of electronic files, metadata and directory information can be realized by the newly added electronic file door and the entity file door, the newly added electronic file door has the functions of setting a file library and classifying codes, and simultaneously appointing the file library corresponding to the newly added door and modifying the appointed file library and file library attributes and metadata attribute values.
The supervision and guidance module is used for filing the affiliated units and departments on various door file materials and automatically checking the file catalogues and the metadata item completeness standardization, guiding the filing process and automatically forming a checking report, checking the file content completeness and accuracy according to the working process, automatically forming a checking report and reminding the file checking content;
the retrieval utilization module is used for carrying out multi-path, multi-angle and easy-to-use retrieval and utilization on the files on the basis of authority management, and can meet various file-checking requirements of users;
when the files are searched and utilized, the searching mode comprises simple searching without setting searching fields and advanced searching for selecting a plurality of searching fields and logic relations thereof, and supports a user to set any searching condition according to needs to search digital file resources within the permission range of the user authority and accurately search in the searching result;
the cross-library retrieval supports keyword association retrieval, word segmentation retrieval, accurate retrieval, table display and composite display of retrieval results, supports classified display of documents, photos, audios and videos, and supports logical retrieval of various door files including document files, professional files, scientific and technological files, audio and video files, physical files and other files;
professional file retrieval supports the convergence and series-parallel connection of files of various types, ensures the relevance among the files of different types, can directly perform file retrieval on newly added file doors without any development work, and has flexible retrieval expandability; and for the result of the full-text retrieval, displaying the retrieval result matching positioning item in the retrieval result in a navigation mode, and displaying in a highlight mode.
The logical relationship comprises AND-way retrieval, fuzzy retrieval, accurate retrieval, cross-file door retrieval and the like.
The statistical analysis module is used for carrying out statistics on the resource room inventory, the file utilization condition, the data source and the quadrant on the entity files and the digital files;
when the entity files and the digital files are subjected to resource room inventory statistics, the statistical conditions comprise file door types, storage time limit, file formats, types, volumes (pieces), years and the like;
the file utilization condition statistics of the entity files and the digital files comprises utilizing functional departments and times of the files, utilizing types and quantity of the entity files and the digital files, downloading and browsing amount of the digital files and the like, realizing statistics of annual report statistical data according to file work, and displaying statistical reports in various modes such as statistical reports, column diagrams, pie charts, curves and the like;
when the data source statistics is carried out on the entity files and the digital files, the total data volume of the auxiliary traditional carrier bibliography and the electronic file filing of each door type is counted;
the quadrant statistics of the entity archive and the digital archive supports multi-dimensional step statistics, so that the statistical result is better displayed.
The identification processing module is used for identifying and processing the door type file data and performing statistical management on the door type file data and the relevant service conditions;
the system is characterized in that various types of file identification tasks including storage period change, file renewal, destruction, transfer and the like are supported, the identification handling module supports file managers to complete the file identification handling tasks according to written identification reports and directly modify bibliographic fields such as storage periods and the like to execute the functions of destruction and transfer, or has the functions of identification handling workflow according to actual requirements, supports configuration and implementation of identification approval processes including initiating identification tasks, implementing identification, approving identification opinions, triggering handling functions and the like, and retains destruction records including destruction records, destruction content, destruction executors, destruction time and the like.
The metadata scheme management module is used for customizing the archive library, the metadata and the archive types, providing flexibly configurable metadata scheme management, configuring metadata schemes of respective door types according to the archive door types and supporting validity verification of the metadata; setting a metadata scheme by referring to a document electronic file metadata scheme, a photo electronic file metadata scheme, a sound recording electronic file metadata scheme and a video recording electronic file metadata scheme, and establishing nearly hundred types of elements aiming at different contents according to each type of standard metadata scheme.
The metadata scheme management module supports management of different metadata items (including metadata management of text format, date format, user format, enumeration format, integer type and floating point type) and regular verification of different metadata elements (including content verification of mail type, character type, identity card number type and the like), and provides a plurality of file categories: conventional metadata schemes for paperwork archives, professional archives, scientific archives, audio-visual archives, physical archives, accounting archives, and other archives.
As shown in fig. 2, firstly, the management of multi-carrier files is usually separate storage management, paper file volumes carry text file information, photo carriers carry image information, and magnetic and optical disc carriers carry audio and video information.
The main contents in the file files comprise document legal materials, such as civil appeal, original report citation notice, and notice of complaint and complaint; photographic material includes evidence photographs, etc.; the disk and optical disk cut-off comprises court trial recording, court trial video recording, law enforcement audio and video and the like.
The file forms document materials, wherein the metadata elements comprise elements such as a title, a text number, a accountant, a date and the like; the photo-like material comprises background information such as people, events, time, places and the like; the audio and video recording material comprises information such as audio and video duration, audio and video content, speakers, audio and video formats, sampling precision, video coding and the like.
Wherein, the file elements together form the metadata scheme of litigation documents; the photo information constitutes a photo type metadata scheme; the audio and video recording class constitutes an audio and video recording class metadata scheme.
The multi-carrier metadata scheme is connected in series and in parallel through the serial number of the electronic volume, various schemes and metadata information are associated, and a mixed metadata scheme is summarized and formed.
As shown in fig. 3:
(1) and the electronic file carries out format judgment according to the electronic material format information. The document format information such as PDF, OFD, WORD, Excel and the like is document material. The document material acquires a single document metadata scheme from the system, acquires elements according to the title, the accountant, the document number and the like in the document metadata scheme, and stores the acquired elements in the document scheme data.
(2) Photo picture class information. Wherein, the picture format information of JPG, JPEG, GIF and the like is picture material. The picture material acquires a single picture metadata scheme from the system, acquires elements according to the size, the character, the pixel, the horizontal resolution and the like of the picture in the single picture metadata scheme, and stores the acquired elements into the picture scheme data.
(3) Audio and video type information. The audio and video format information such as MP3, MP4, WAV and the like is audio and video materials. The audio and video material acquires a single audio and video metadata scheme from the system, acquires elements according to file size, audio and video duration, audio and video content, resolution, channel number and the like in the single audio and video metadata scheme, and stores the acquired elements into audio and video scheme data.
(4) And finally, summarizing document scheme data storage, photo scheme data storage and audio and video scheme data storage to comprehensively form a mixed metadata scheme for comprehensive management of the multi-carrier door electronic archives.
Example (b):
for the management of litigation files of a court, the conventional management mode is to electronize paper materials for litigation, scan litigation photos into document materials for management, record court hearing audio and video files of cases into optical disks or store the files separately, and cannot summarize the existing litigation files or form the whole electronic files. Even if the metadata is stored together, the metadata of the corresponding carrier content cannot be acquired, and various metadata information cannot be stored uniformly for documents, photos and videos.
After the mixed metadata scheme management system is applied, the legal documents like court, law enforcement documents like public security and check documents like tax check can be completely and completely managed, wherein the management comprises the management of metadata information in various carrier formats and the management of information carriers in various information formats. In the scheme of constructing the mixed metadata, a self-contained metadata scheme is constructed for each type of carrier, and a litigation document metadata scheme, a litigation photo metadata scheme, a litigation audio/video metadata scheme, a litigation case metadata scheme and a litigation person metadata scheme are formed, wherein each type of metadata scheme comprehensively describes self-contained content metadata, ensures the complete integrity of the metadata, can be adapted to the management of different carrier information formats, and finally summarizes and displays each type of information through a scheme number, so that the presentation of the mixed metadata and the management of various carrier formats are formed.
The scheme not only comprises documents, photos and audios and videos, but also can realize the mixed management of various carriers, such as the mixed management of multimedia streams, web pages, mails and the like, and can realize the mixed management of various door formats and carriers.
The key technical scheme of the invention is as follows:
(1) management of mixed type metadata scheme of multi-carrier and multi-format files.
(2) Files with multiple carriers and multiple formats can be connected in series and in parallel through various unified information such as electronic file numbers, case numbers, electronic file numbers and the like, and finally an integral mixed electronic file is formed.
(3) The mixed metadata scheme solves the defect that the single scheme cannot solve the management of various carriers and format files, and truly realizes the comprehensive management of electronic files and electronic files.
In summary, the present invention performs targeted analysis and description on the management mode of the existing electronic file, can perform unified and efficient management on the multi-carrier file, solves the problem that the existing single file system cannot solve the comprehensive management of the multi-carrier door, and realizes the centralized and unified comprehensive management of case file files including paperwork materials, photo materials, and audio/video materials, such as law enforcement, litigation, tax inspection, etc., and performs the own metadata system design respectively, and performs the integral association through the unified electronic file case numbers to form cases with different carriers belonging to the same case, and performs the decentralized storage and the comprehensive management, thereby solving the problem that the comprehensive management of the multi-carrier cannot be realized for a long time, and continuously performing the complete, effective and comprehensive management on various files such as increasingly complex engineering construction adaptive video monitoring, etc. Aiming at the mixed metadata scheme, the system supports the management of a multi-carrier mixed metadata scheme, the management and the definition of mixed document material metadata, the management and the definition of mixed photo metadata and the management and the definition of mixed video and audio metadata.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.