Bibliographic Concepts CS 502 20020131 Carl Lagoze Cornell University Acks to H Van de Sompel Cornell CS 502 20020131 People want stuff Godfrey Rust 1999 Cornell CS 502 20020131 Where did I put that file Cornell CS 502 20020131 Where is that information Cornell CS 502 20020131 Am I getting compensated for my talent Copies Derivations Contributions Cornell CS 502 20020131 Is that available in a way I can use it Cornell CS 502 20020131 Are there other resources like these Cornell CS 502 20020131 Content Data Metadata informal definitions Content refers to resources as information that is of interest to a user It is the human view of information music database literature web site software Cornell CS 502 Beethoven s Fifth Symphony Genome Database Gone with the wind weather com MS Word 20020131 Content Data Metadata informal definitions Data emphasizes on the bits and bytes to be processed by a computer It is the computer representation of information bit and byte layout e g ASCII compression schemes e g MP3 database schema e g active server pages Cornell CS 502 20020131 Content Data Metadata informal definitions Metadata is data about data content Descriptive metadata e g catalog records Administrative metadata e g circulation records Structural metadata e g serials record Rights metadata e g shrink wrap license Cornell CS 502 20020131 Bibliographic model provides a user with an organized view of content information data in a collection collection object piece of content Cornell CS 502 descriptive metadata works creators subjects objectives bibliographic system 20020131 Traditional models challenged by networked digital information Scale of corpus or collection Variety of content Internet Commons Unbinding of information from its carrier Mutability of data Requires entity relationship model basis to express multi party derivative context Cornell CS 502 20020131 Variants of information entities to be reflected in bibliographic system Psycho Killer The score by David Byrne The original recording by Talking Heads Psycho Chicken cover by The Fools A live performance by the Fools in 1981 The 45 RPM single released in 1979 Herbert s personal copy of that single Cornell CS 502 20020131 IFLA Model to represent object variants entities Entities are the key objects of interest to users of bibliographic data i e of a bibliographic system Group 1 products of intellectual endeavor work expression manifestation item Group 2 the parties responsible for the intellectual content person corporate body Group 3 the subjects of intellectual endeavor concept object event place IFLA model is a conceptual framework It does not provide rigorous definitions Cornell CS 502 20020131 IFLA Model work expression manifestation item A work is an abstract entity an idealization e g The Iliad The Weather Channel web site Beethoven s Fifth Symphony Unix operating system The Bible This is roughly equivalent to the concept of literary work used in copyright law Cornell CS 502 20020131 IFLA Model work expression manifestation item An expression is a realization of a work a representation of the work in a disseminatable form e g The Iliad has oral expressions and written expressions A musical work has a score live performance s an original recording cover s Many works have only a single expression e g a web page or a book which only has a single edition a painting a medieval manuscript Cornell CS 502 20020131 IFLA Model work expression manifestation item A manifestation is the concrete embodiment of an expression it reflects physical form e g The text of The Iliad has been manifested in numerous manuscripts and printed books A musical recording can be distributed on CD cassette or on a soundtrack of a DVD Cornell CS 502 20020131 IFLA Model work expression manifestation item When many copies are made of a manifestation each copy is a separate item e g the Cornell Library s copy of an edition of the Iliad your copy of the latest Alanis Morissette CD Cornell CS 502 20020131 IFLA Model work expression manifestation item C O work N T E N T Cornell CS 502 Psycho Killer 20020131 IFLA Model work expression manifestation item C O work N T E N expression T Cornell CS 502 Psycho Killer The score by David Byrne The original recording by Talking Heads Psycho Chicken cover by The Fools 20020131 IFLA Model work expression manifestation item C O work N T E N expression T P H manifestation Y S I C A L Cornell CS 502 Psycho Killer The score by David Byrne The original recording by Talking Heads Psycho Chicken cover by The Fools A live performance by the Fools in 1981 The 45 RPM single released in 1979 20020131 IFLA Model work expression manifestation item C O work N T E N expression T P H manifestation Y S I C item A L Cornell CS 502 Psycho Killer The score by David Byrne The original recording by Talking Heads Psycho Chicken cover by The Fools A live performance by the Fools in 1981 The 45 RPM single released in 1979 Herbert s personal copy of that single 20020131 IFLA Model work expression manifestation item C O work N T E N expression T P H manifestation Y S I C item A L Cornell CS 502 An theory in high energy physics A peer reviewed paper An oral presentation A preprint TeX version posted by the author to arXiv org PDF version created by arXiv org The copy of the TeX version on the Italian mirror of arXiv org 20020131 Bibliographic model provides a user with an organized view of content in a collection collection object piece of content Cornell CS 502 descriptive metadata bundles related content bibliographic system 20020131 Objectives of a bibliographic system 1 To locate objects in a file or database as the result of a search using attributes or relationships of the objects To find a singular object known item search To locate sets of objects representing search All objects corresponding to the same work expression manifestation All objects by a given author All objects about a given author All objects on a given subject All objects published by a given publisher All objects defined by other criteria cf IFLA entities Cornell CS 502 20020131 Objectives of a bibliographic system 2 To identify an object i e confirm that a described object corresponds to the sought object or distinguish between objects with similar characteristics 3 To select an object that is appropriate to the user s need 4 To obtain access to an object purchase loan license 5 To navigate the file or database browse Cornell CS 502 20020131 References IFLA Study group