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Metadata: An Introduction By  Wendy Duff October 13, 2001 ECURE
Metadata <ul><li>The term &quot;meta&quot; comes from a Greek word that denotes  something of a higher or more fundamental...
Defining Metadata <ul><li>Does data about data mean anything?  </li></ul><ul><ul><li>Librarians equate it with a complete ...
Bibliographic Metadata <ul><li>Providing a description of the information package along with other information necessary f...
Encoding <ul><li>Surrogate records are encoded by assigning tags, letter, or words </li></ul><ul><li>Why encode? </li></ul...
Beyond Discovery and Retrieval <ul><li>Gilliland-Swetland (1998) explains “metadata also documents how that objects behave...
Definition proposed by Cunningham <ul><li>  </li></ul><ul><li>Structured information that describes and/or allows us to fi...
Different Communities ….Different Metadata <ul><li>Developers of the Interoperabilty of Data in E-Commerce Systems (indecs...
Metadata to Information Technologists <ul><li>The data that defines the data elements in a table </li></ul><ul><li>Data th...
Source of Metadata <ul><li>Automatically generated </li></ul><ul><li>Supplied by creator of electronic resource </li></ul>...
Dublin Core <ul><li>Metadata to improve information retrieval of internet resources </li></ul><ul><li>Developed predominan...
Characteristics of Dublin Core <ul><li>Simplicity </li></ul><ul><li>Semantic Interoperability   </li></ul><ul><li>Internat...
Dublin Core Elements <ul><li>Content </li></ul><ul><ul><li>Coverage </li></ul></ul><ul><ul><li>Description </li></ul></ul>...
Dublin Core Element <ul><li>Instantiation </li></ul><ul><ul><li>Date </li></ul></ul><ul><ul><li>Format </li></ul></ul><ul>...
Law Suits Over Metatags <ul><li>Playboy! </li></ul>
Resource Description Framework(RDF)  <ul><li>RDF  provides interoperability between applications that exchange machine-und...
Metadata and XML <ul><li>Provides a means of encoding and exchanging metadata </li></ul><ul><li>EAD, TEI, VERS </li></ul>
XML Example <ul><li><?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;yes&quot;?> <!DOCTYPE FAQ SY...
Electronic Records Metadata Project <ul><li>Functional Requirements for Evidence in Recordkeeping </li></ul><ul><li>The SP...
SPIRT Metadata Scheme
Open Archival Information Systems Figure 4‑12:  Information Object Taxonomy
Preservation Description
Table 4‑1:  Examples of PDI Types   Content Information Type Reference Provenance  Context Fixity Space Science Data     ...
InterPares Preservation Model
Metadata Facts to Remember  <ul><li>Metadata does not have to be digital </li></ul><ul><li>Metadata relates to more than t...
Developing Metadata Schemes <ul><li>Identify the purpose of the metadata model </li></ul><ul><li>Level of specificity of t...
Other Sources <ul><li>Introduction to Metadata:  Pathways to Digital Information.   http://www.getty.edu/gri/standard/intr...
More Sources <ul><li>SPIRT Recordkeeping Metadata Project http://www.sims.monash.edu.au/rcrg/research/spirt/index.html </l...
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香港六合彩

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李哲羽却淡淡地看着Sun,等着下文。Sun拿起话筒,笑着朝操场上的同学们挥了挥手,立刻引起了台下一片惊涛骇浪!晕香港六合彩当是在开现场演唱会吗?各位同学,香港六合彩今天给大家带来一个好消息哦!哼好消息?!香港六合彩没好气地看了一眼Sun。如果现在有人能把下面一盘散沙聚成一座城堡,那才是好消息!演艺公司决定,由香港六合彩挑选下一只广告跟香港六合彩搭档的演员!作为崇阳的一员,当然希望这次团体操香港六合彩学校能获胜。苏佑慧同学将挑选出这次团体操比赛中表现最突出的男生和女生参加香港六合彩的广告拍摄!如果大家有兴趣的话,那么从现在开始,大家就要加油咯!Sun说完,还俏皮地冲操场上的同学们眨了眨眼睛。操场上再次一片哗然!哇!和Sun一起拍广告?!真的假的啊?香港六合彩好想去哦!喂,苏佑慧!开始训练了啦!香港六合彩崇阳这次一定要赢过明德!汗Sun的偶像攻势这么有效,早知道香港六合彩也去闯荡演艺界了!香港六合彩赶紧趁热打铁握紧话筒:好,让香港六合彩为了崇阳奋斗,第一排同学,全体向后转!第一行和最后一行的同学!向左向右转!唰啦!唰啦!唰啦!啊好整齐!大家都按照香港六合彩的口令在行动!太好了!呜呜呜呜真是让香港六合彩在漫天黑暗中又看到了一线曙光,说不定崇阳真的能取得这次的胜利!向左看齐!齐步走!Sun的好消息就像是给队伍打了一剂强心针,大家都按照口令认真完成动作。偶尔一个同学出现差错,其香港六合彩人也立刻集体指出纠正。看着干劲十足的队伍,香港六合彩仿佛回到了明德。Sun,前一阵子一想到之前自己对Sun故意那么疏离,香港六合彩还热心地帮香港六合彩,自己就变得不自在起来。呵呵,香港六合彩什么都不记得了,你不用提了,专心训练吧!你不去工作留下来陪香港六合彩训练,真的没问题吗?Sun调皮地冲香港六合彩扮了个鬼脸:嘿嘿!没关系啦!反正如果香港六合彩丢了工作也还有佑慧啊!Sun,香港六合彩是说真的,不是在和你开玩笑!香港六合彩不好意思地低下了头。嗯,香港六合彩也是说真的啊!好了佑慧,香港六合彩的事情你就别担心了,有时间不如担心你的团体操比赛吧。Sun说着,干脆拿起话筒帮香港六合彩喊接下来的一组口令。团体操第一组动作!一二三四!二二三四香港六合彩看着满头大汗的Sun,心里一阵激荡。也许之前自己的戒心还是太重了,毕竟那时候香港六合彩还是个小孩子,也没必要为了那件事老是耿耿于怀,其实香港六合彩的人真的还不错接下来的训练开展得十分顺利,大家现在都能积极配合香港六合彩的口令行事,并且表现的格外积极主动,可是新的问题又来了。团体操是一个集体比赛,主要是看排列队伍的新颖和整齐度,照现在的情形看,整齐度是没有问题,但队伍的排列做出新意却让香港六合彩有点头疼,因为香港六合彩没有训练团体操的经验,就算想出队型也不知道该怎么把它组合起来,怎么办?放学后,香港六合彩独自一个人坐在课桌前冥思苦想。不知道现在明德的训练进行得怎么样了呜呼!不用想,一定是很顺利吧李哲羽和凌晨炫这几天老说有事,大概是对Sun的事情有些介意呜呼唉接下来到底要怎么样才好呢?香港六合彩像条死鱼一样浑身无力地爬在课桌上发呆,思绪也越来越沉重小傻瓜,你什么时候才能让香港六合彩不必担心你呢朦胧中,一个声音在香港六合彩耳边轻轻地响起。咦?谁?是谁在说话?这个声音好熟悉

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Transcript of "香港六合彩"

  1. 1. Metadata: An Introduction By Wendy Duff October 13, 2001 ECURE
  2. 2. Metadata <ul><li>The term &quot;meta&quot; comes from a Greek word that denotes something of a higher or more fundamental nature. Metadata, then, is data about other data. </li></ul><ul><li>The term refers to any data used to aid the identification, description and location of networked electronic resources </li></ul>
  3. 3. Defining Metadata <ul><li>Does data about data mean anything? </li></ul><ul><ul><li>Librarians equate it with a complete bibliographic record </li></ul></ul><ul><ul><li>Information technologists equate it to database schema or definitions of the data elements </li></ul></ul><ul><ul><li>Archivists include context information, restrictions and access terms, index terms, etc. </li></ul></ul>
  4. 4. Bibliographic Metadata <ul><li>Providing a description of the information package along with other information necessary for management and preservation </li></ul><ul><li>Encoding </li></ul><ul><li>Providing access to this description </li></ul><ul><li>Predominantly discovery and retrieval </li></ul>
  5. 5. Encoding <ul><li>Surrogate records are encoded by assigning tags, letter, or words </li></ul><ul><li>Why encode? </li></ul><ul><li>For display </li></ul><ul><li>Provide access </li></ul><ul><li>Integration of surrogate </li></ul><ul><li>Management </li></ul>
  6. 6. Beyond Discovery and Retrieval <ul><li>Gilliland-Swetland (1998) explains “metadata also documents how that objects behaves, its functions and use, relationship to other objects and how it should be managed”. </li></ul>
  7. 7. Definition proposed by Cunningham <ul><li>  </li></ul><ul><li>Structured information that describes and/or allows us to find, manage, control, understand or preserve other information over time. </li></ul>
  8. 8. Different Communities ….Different Metadata <ul><li>Developers of the Interoperabilty of Data in E-Commerce Systems (indecs) ideintified metadata for protecting intellectual property rights of creators and publishers. </li></ul><ul><li>The Research Library Group’s Working Group on Preservation Issues of Metadata identified metadata for “digital master files that have preservation-based intent”. </li></ul>
  9. 9. Metadata to Information Technologists <ul><li>The data that defines the data elements in a table </li></ul><ul><li>Data that controls or explains other data </li></ul><ul><li>Something that is not part of the bit stream of a record but needed to understand the data in the record </li></ul><ul><li>One systems metadata is another systems data </li></ul>
  10. 10. Source of Metadata <ul><li>Automatically generated </li></ul><ul><li>Supplied by creator of electronic resource </li></ul><ul><li>Supplied by 3rd party </li></ul>
  11. 11. Dublin Core <ul><li>Metadata to improve information retrieval of internet resources </li></ul><ul><li>Developed predominantly by the bibliographic community. Elements similar to bibliographic surrogate </li></ul>
  12. 12. Characteristics of Dublin Core <ul><li>Simplicity </li></ul><ul><li>Semantic Interoperability </li></ul><ul><li>International Consensus </li></ul><ul><li>Extensibility </li></ul><ul><li>Metadata Modularity on the Web </li></ul>
  13. 13. Dublin Core Elements <ul><li>Content </li></ul><ul><ul><li>Coverage </li></ul></ul><ul><ul><li>Description </li></ul></ul><ul><ul><li>Type </li></ul></ul><ul><ul><li>Relation </li></ul></ul><ul><ul><li>Source </li></ul></ul><ul><ul><li>Subject </li></ul></ul><ul><ul><li>Title </li></ul></ul><ul><li>Intellectual Property </li></ul><ul><li>Contributor </li></ul><ul><li>Creator </li></ul><ul><li>Publisher </li></ul><ul><li>Rights </li></ul>
  14. 14. Dublin Core Element <ul><li>Instantiation </li></ul><ul><ul><li>Date </li></ul></ul><ul><ul><li>Format </li></ul></ul><ul><ul><li>Identifier </li></ul></ul><ul><ul><li>Language </li></ul></ul>
  15. 15. Law Suits Over Metatags <ul><li>Playboy! </li></ul>
  16. 16. Resource Description Framework(RDF) <ul><li>RDF provides interoperability between applications that exchange machine-understandable information on the Web </li></ul>
  17. 17. Metadata and XML <ul><li>Provides a means of encoding and exchanging metadata </li></ul><ul><li>EAD, TEI, VERS </li></ul>
  18. 18. XML Example <ul><li><?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot; standalone=&quot;yes&quot;?> <!DOCTYPE FAQ SYSTEM &quot;FAQ.DTD&quot;> <FAQ> </li></ul><ul><li><INFO> <SUBJECT> XML </SUBJECT> </li></ul><ul><li><AUTHOR> Lars Marius Garshol</AUTHOR> </li></ul><ul><li><EMAIL> larsga@ifi.uio.no </EMAIL> <VERSION> 1.0 </VERSION> </li></ul><ul><li><DATE> 20.jun.97 </DATE> </li></ul><ul><li></INFO> <PART NO=&quot;1&quot;> <Q NO=&quot;1&quot;> <QTEXT>What is XML?</QTEXT> <A>SGML light.</A> </Q> ...</PART> </FAQ> </li></ul>
  19. 19. Electronic Records Metadata Project <ul><li>Functional Requirements for Evidence in Recordkeeping </li></ul><ul><li>The SPIRT Metadata Project </li></ul><ul><li>VERS </li></ul><ul><li>GILS - and the AGLS </li></ul><ul><li>OAIS </li></ul><ul><li>InterPares </li></ul>
  20. 20. SPIRT Metadata Scheme
  21. 21. Open Archival Information Systems Figure 4‑12: Information Object Taxonomy
  22. 22. Preservation Description
  23. 23. Table 4‑1: Examples of PDI Types Content Information Type Reference Provenance Context Fixity Space Science Data     Object identifier  Journal reference     Mission, instrument, title, attribute set       Instrument description     Processing history     Sensor description     Instrument     Instrument mode     Decommutation map     Software interface specification     Calibration history     Related data sets     Mission     Funding history     CRC     Checksum     Reed-Solomon coding   Digital Library Collections     Bibliographic description     Persistent identifier     For scanned collections:     metadata about the digitisation process     pointer to master version     For born-digital publications:     pointer to the digital original     Metadata about the preservation process:     pointers to earlier versions of the collection item     change history     Pointers to related documents in original environment at the time of publication     Digital signature     Checksum     Authenticity indicator Software Package       Name     Author/Originator     Version number     Serial number     Revision history     License holder     Registration     Copyright     Help file     User guide     Related software     Language     Certificate     Checksum     Encryption     CRC
  24. 24. InterPares Preservation Model
  25. 25. Metadata Facts to Remember <ul><li>Metadata does not have to be digital </li></ul><ul><li>Metadata relates to more than the description of an object . </li></ul><ul><li>Metadata can come from a variety of sources </li></ul><ul><li>Metadata continue to accrue during the life of an information object or system . </li></ul><ul><li>One information object's metadata can simultaneously be another information object's data . (Anne Gilliland-Swetland, Setting the Stage) </li></ul>
  26. 26. Developing Metadata Schemes <ul><li>Identify the purpose of the metadata model </li></ul><ul><li>Level of specificity of the elements </li></ul><ul><li>Identify resources </li></ul><ul><li>Infrastructure - who will supply it? </li></ul><ul><li>What type of information package is it? </li></ul><ul><li>Who will use the metadata? </li></ul><ul><li>Existing metadata models </li></ul>
  27. 27. Other Sources <ul><li>Introduction to Metadata: Pathways to Digital Information. http://www.getty.edu/gri/standard/intrometadata/index.htm </li></ul><ul><li>CLIR Reports http://www.clir.org/pubs/reports/reports.html </li></ul><ul><li>Digital Libraries: Metadata Resources http://www.ifla.org/II/metadata.htm </li></ul><ul><li>Australian Government Locator Service (AGLS) Metadata Standard. http://www.naa.gov.au/recordkeeping/gov_online/agls/summary.html </li></ul>
  28. 28. More Sources <ul><li>SPIRT Recordkeeping Metadata Project http://www.sims.monash.edu.au/rcrg/research/spirt/index.html </li></ul><ul><li>www.archiefschool.nl/metadata </li></ul>
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