LIS 2600 Reading Notes (Oct. 1-Oct. 7)
Reading 1 - http://www.getty.edu/research/publications/electronic_publications/intrometadata/setting.html
-Metadata = "data about data"
-Important aspect of the digital world as we try to discern the reliable from unreliable, in terms of information
-Information Objects have three characteristics - Content, Context, and Structure
-Content - intrinsic information within an object
-Context - Who, What, Where, How, and Why aspects
-Structure - Formal Set of Objects
-Archives and Museums are slower in deciphering metadata due to a slow adoption of standards and reference best practices
-Metadata with digital resources becomes about preserving the coding and information, rather than the representation
-Categorizing metadata relies on the information's function such as: Descriptive, Technical, or Use
-Major life cycle of an Information Object: Creation, reuse -> Organization and Description -> Validaton -> Searching and Retrieval -> Utilization and Preservation -> Disposition
-Attentive Metadata can lead to enhanced efficiency in information searches
-Understanding of Metadata can allow institutions to track their digital holdings in terms of legal rights
-Metadata accrues over time and the more we have the more we can discern about any given information object
Reading 2 - http://dublincore.org/1999/06/06-overview/
-The Dublin Core Metadata Initiative is concerned with offering wide-ranging methods of interpreting and describing worldwide Digital Resources
-Requirements for the DCMI - Internationalization, Modularization, Element Identity, Semantic Refinement, Identification of encoding schemes, Specification of Controlled Vocabularies, Identification of structured compound values
-Works on basic assumption that owned information need to be defined to be accessed
-Has a designed set of programming and database 'semantics' to track information
-Based on Rules of XML
-DCMI has semantic refinement to ensure universality
-Vocabulary in DCMI allows for contextual decoding
-DCMI faces problem of adapting existing languages to an international standard
Reading 3 - http://www.hsl.unc.edu/Services/Tutorials/ENDNOTE/intro.htm
-EndNote is the leading bibliography software on the internet
-Output in EndNote allows you to change reference formats and styles
-Clicking same heading twice will reverse order inputs
-EndNote is efficient because it saves files periodically to catalog works
-EndNote compresses files for easy use
-EndNote Library allows you to store multiple similar references in a single collection
-Can use online search to combine references from other sources
-EndNote can combine references from other compatible databases
-Cite While You Write allows you to add references to word documents on-the-go
-EndNote Style Manager allows you to cater to reference specific publications by converting them to the desired output
-EndNote X5 can automatically update reference to new scholarly standards
Thursday, September 27, 2012
Muddiest Point - 09/24-09/31
Muddiest Point - 09/24-09/31
When building and managing databases, is it possible, after joining multiple tables, for primary keys and foreign keys to switch roles, or assume new roles?
When building and managing databases, is it possible, after joining multiple tables, for primary keys and foreign keys to switch roles, or assume new roles?
Wednesday, September 19, 2012
Reading Notes (Sept 24-30)
Reading 1: http://en.wikipedia.org/wiki/Database
-Databases are organized collections of data
-Software includes Oracle, SQL Server, and Microsoft Access
-XML is current most popular database file system
-Can be both physical or digital, usually refers to digital in current society
-Cloud Databases are the new and upcoming style format for digital databases
-Database efficiency depends wholly on computing power of output device
-Security enacted through encryption
-Database Management Systems are the method through which we decrypt and understand database materials
-Models include Hierarchical, Network, Inverted File and Relational
-Originally Databases grounded in physical storage, now more done in clouds and internet storage
Reading 2: http://en.wikipedia.org/wiki/Entity%E2%80%93relationship_model
-Refers to abstract ways to describe databases
-Diagrams often used to extract information processing in database systems
-Three-headed approach:Conceptual, Logical, and Physical models
-Items are related to each other through series of key words (married, performed, etc)
-Revolves around ownership and possession
-Diagramming tools include MagicDraw and dbForge
-Cannot be used for semi-structured data
-Studies show, limitations have caused model to be less favored in relation to Enhanced Entity-Relationship Models, particularly in the business world
Reading 3:http://www.phlonx.com/resources/nf3/
-First Normal Form - No repeating elements
-Repeating elements are items with similar attributes and interferes with atomicity of database
-Atomicity - indivisibility of attributes into similar parts
-In NF1 each row of data must have a unique identifying key
-Referred to as Primary Key
-Second Normal Form -No Partial Dependencies on a Concatenated Key
-Focused on the Orders Table Structure
-Order_date and Order_id columns are the key problems in the Second Normal Form, often missing and disrupting database systems
-By switching orders to single-column primary key, NF2 can be appeased
-Third Normal Form - No Dependencies on Non-Key Attributes
-Sorting by secondary attributes causes issues when retrieving data from the database
-Removes context and can disrail the transfer of information
-Only primary relevant attributes can be used to recall and construct databases
-Databases are organized collections of data
-Software includes Oracle, SQL Server, and Microsoft Access
-XML is current most popular database file system
-Can be both physical or digital, usually refers to digital in current society
-Cloud Databases are the new and upcoming style format for digital databases
-Database efficiency depends wholly on computing power of output device
-Security enacted through encryption
-Database Management Systems are the method through which we decrypt and understand database materials
-Models include Hierarchical, Network, Inverted File and Relational
-Originally Databases grounded in physical storage, now more done in clouds and internet storage
Reading 2: http://en.wikipedia.org/wiki/Entity%E2%80%93relationship_model
-Refers to abstract ways to describe databases
-Diagrams often used to extract information processing in database systems
-Three-headed approach:Conceptual, Logical, and Physical models
-Items are related to each other through series of key words (married, performed, etc)
-Revolves around ownership and possession
-Diagramming tools include MagicDraw and dbForge
-Cannot be used for semi-structured data
-Studies show, limitations have caused model to be less favored in relation to Enhanced Entity-Relationship Models, particularly in the business world
Reading 3:http://www.phlonx.com/resources/nf3/
-First Normal Form - No repeating elements
-Repeating elements are items with similar attributes and interferes with atomicity of database
-Atomicity - indivisibility of attributes into similar parts
-In NF1 each row of data must have a unique identifying key
-Referred to as Primary Key
-Second Normal Form -No Partial Dependencies on a Concatenated Key
-Focused on the Orders Table Structure
-Order_date and Order_id columns are the key problems in the Second Normal Form, often missing and disrupting database systems
-By switching orders to single-column primary key, NF2 can be appeased
-Third Normal Form - No Dependencies on Non-Key Attributes
-Sorting by secondary attributes causes issues when retrieving data from the database
-Removes context and can disrail the transfer of information
-Only primary relevant attributes can be used to recall and construct databases
Muddiest Point (Sept 17-23) Media Storage - LIS 2600
Muddiest Point (Sept.17-23)
In an ever-changing storage media world, can a universal industry standard ever be created using a single, or decode-able and translatable, storage source?
Patrick Trembeth
In an ever-changing storage media world, can a universal industry standard ever be created using a single, or decode-able and translatable, storage source?
Patrick Trembeth
Thursday, September 13, 2012
Muddiest Point (Sept. 9-Sept.16) for LIS 2600
Muddies Point Question:
If, under Moore's Law, technology exponentially increases in efficiency, shouldn't digitization processes therefore have become more cost effective within the past decade, as what was once rare and very expensive is now industry standard as technology has developed?
If, under Moore's Law, technology exponentially increases in efficiency, shouldn't digitization processes therefore have become more cost effective within the past decade, as what was once rare and very expensive is now industry standard as technology has developed?
Sunday, September 9, 2012
LIS 2600 Week 2 (Sept 10) Digitization Reading Notes
Lied Library @ Four Years: Technology Never Stands Still
As technology continually advances, with stronger and faster computing, so must the institutions which advertise their ready availability. This articles uses UNLV's Lied Library, opened in 2001, as an example of how the landscape in a technology environment evolves over short periods of time and many of the issues and problems that pop up as a result of the rapid advancement. With newer tech, physical problems arise as the stronger computing makes for more intense problems in the building itself, evidenced by the example of Lied's air conditioning problems in keeping up with the temperatures outputted by strong computers in the building. Also there are problems that arise in security as the internet landscape constantly changes, with anti-virus protection at a premium, crippling the efficiency demanded from such a high tech institution. Finally there are also problems in dealing with the rapid advancement of the software itself, which must be managed to work smoothly among operating systems and hardware, evidenced by glitches in Adobe software and printing problems.
European Libraries Face Problems in Digitalizing
As we move into the digital age, problems arise in making analog items digital in terms of funding. Innovative ways must be developed to pay for the rights to items on the road to digitization as well as pay for the price of digitalizing the items themselves. Pay-per-access is one popular method for viewing items in the digital world, opening the possibility for good profit from the process. Also available are subscription services that allow access to vast numbers of items for a set rate per time period. Both options provide a way to recuperate digitization fees, but it is still an evolving field with many more possibilities and unanswered questions.
A Few Thoughts on the Google Books Library Project
Focuses on the complexities and advantages of transferring Analog to Digital among the Google Books Library Project. Gives credit for making a vast amount of material available to many more people than would be possible through the slow/cumbersome process of using physical libraries for research with the stipulations of rarity and availability that plagues this medium. Also commends the sustainability of digital resources as they do not break down, however criticizes the apathy this creates for physical items and the trouble of converting digital binary to physical literature. Finally puts a focus on the struggle of getting younger generations to understand the usefulness of "old" books, and the task of educating new generations on using both forms of research and information attainment.
Focuses on the complexities and advantages of transferring Analog to Digital among the Google Books Library Project. Gives credit for making a vast amount of material available to many more people than would be possible through the slow/cumbersome process of using physical libraries for research with the stipulations of rarity and availability that plagues this medium. Also commends the sustainability of digital resources as they do not break down, however criticizes the apathy this creates for physical items and the trouble of converting digital binary to physical literature. Finally puts a focus on the struggle of getting younger generations to understand the usefulness of "old" books, and the task of educating new generations on using both forms of research and information attainment.
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