Review of Overcoming the Information Gap: Measuring the accessibility of library databases to adaptive technology users

DIGITAL DIVIDE

Often seen as the gap between the Western world, where people grow up with technology and use digital information on a daily basis, and, for example, Africa, where access to these things is very rare. Also seen at the gap that exists between younger generations, who have grow up with digital information and technology, and older generations, who have often not been able to keep up with the rapid rate of development that technology has experienced in the last couple of decades.

Text Retrieval System

A text retrieval system (TRS) is an automated system that manages the storage and subsequent retrieval of structured non-numerical databases. TRSs therefore handle databases which comprise mainly of text. It is not a word processing package, as it is not meant for large chunks of free flowing text (as exemplified by an article). The way text are entered into the database are more structured in nature. Chunks of text are broken down into identifiable data elements. These data elements are entered into database through predetermine fields and subfields and a number of these encompass a record in a database.

Usually text information which needed a text retrieval system have common identifiable pattern which characterized each record in the database. For example, a record in a bibliographic database would usually have the following elements: author(s), title, imprint (place of publication, publisher, year), or the source (journal title if it is an article) and information about the physical nature of the document (volume, pagination etc.).

However, text retrieval systems can handle a variety of databases other than bibliographic information such as product information, company information, personnel information, expertise databases, indexes of all sorts, directories of society’s membership, databases on criminals, biographical databases etc.

The major features of the CDS/ISIS software are:

• The handling of variable length records, fields and sub fields, thus saving disk space and making it possible to store greater amounts of information;
• The handling of repeatable fields;
• A data base definition component allowing the user to define the data to be processed for a particular application;
• A data entry component for entering and modifying data through user-created data base specific worksheets;
• An information retrieval component using a powerful search language providing for field-level and proximity search operators, in addition to the traditional and/or/not operators, as well as free-text searching;
• A powerful sort and report generation facility allowing the user to easily create any desired printed products, such as catalogues, indexes, directories, etc.;
• A data interchange function based on the ISO 2709 international standard used by leading data base producers;
• An integrated application programming language (CDS/ISIS Pascal and the ISIS_DLL), allowing the user to tailor the software to specific needs;
• Functions allowing the user to build relational data bases, though CDS/ISIS is not based over a relational model;
• Powerful hypertext functions allow designing complex user interfaces.
• A Windows interface between CDS/ISIS and IDAMS, the UNESCO software for statistical analysis, has also been developed.
• From the outset, CDS/ISIS was created as multi-lingual software, providing integrated facilities for the development of local linguistic versions. Thus, although UNESCO distributes only the English, French and Spanish versions of the package, user-developed versions exist in virtually all languages, including special versions which UNESCO helped in developing, for Arabic, Chinese and Korean.

Reflection on Assignment, Class Exercise & notes on DBMS

Database

What is databse?

A database is a system intended to organize, store, and retrieve large amounts of data easily. It consists of an organized collection of data for one or more uses, typically in digital form. One way of classifying databases involves the type of their contents, for example: bibliographic, document-text, statistical. Digital databases are managed using database management systems, which store database contents, allowing data creation and maintenance, and search and other access.

Mircosoft Access 2007

Files in your database

One of the best new features is the Attachment data type, which permits you to embed entire files in your database. It's a great way to store pictures, documents and other files alongside a related record. However, databases are limited to 2GB so you can forget about using Access to store movies, music and other hefty files.

An attachment field can hold as many files as you want, so it can be used as an all-purpose container for extra bits of information. If you have a table of employees, you could associate a photo, CV or other items.

Simplified security

Great databases use code, and code can do bad things. Previous versions of Access handled buggy code by popping up a stream of warning messages that users had to click through every time they opened a database.

Access 2007 uses a simpler approach. When you open a database, the program quietly disables all potentially unsafe macro actions and code. A slim security message then appears at the top of the window, informing you that your database has been restricted. You can switch your code back on with a couple of clicks or place your database in a folder designated as a trusted location. After this you won't see an unnecessary security warning again.

Forms and reports

Designing data-entry forms and reports in Access can be a bit tedious. To get the exact arrangement of information you want, you have to drag each piece of information to the right place individually. Access 2007 improves this situation dramatically with a feature called layouts, which keeps information together in neat columns or tables.

Layouts are a dream to work with because Access includes a new Wysiwyg (what you see is what you get) form and report designer. Using these tools, you can apply formatting and see the results immediately - something previous versions of Access were crying out for.

Role of Libraries and Librarians

Discuss the role of libraries and librarians in managing digital information.

Due Date : 21 January 2011

The information atmosphere around the world is changing every minute and growing at a tremendous speed due to the emergence of the web based Information and Communication Technology (ICT), globalization of network and internet. These new environment will affect the librarians and information professionals as well as the function of the libraries itself. The new information technology and telecommunication networks are companied by a corresponding increase in knowledge with a rapid growing flow of information. The new information environment requires new skills in seeking, processing and using of the information. Learning and education are important topics in the information society the education situation is changing for several reasons.

The ‘open’ revolution :

· Open source

· Open standard

· Open archives

· Open text

· Open linking

· Open design

· Open access

· Open research

· Open reference

· Open aggregation

· Open storage

· Open source

· Open content

These ‘open’ revolutionary, change the role of the libraries and the learning institutions. The emergence of the e-publishing and born-digital material, visibility of the network support of teaching, learning and research in additional of the new models of scholarship systems. Those scenarios may lead to the reduction of digital divide. The role of librarian and information professionals in this new environment has been strongly influence by these changes