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    New information service New information service Presentation Transcript

    • Saeed Nezareh
      Tehran University Student
      Spring 2010
      New Information service
      In New environment: Instant message , database, internet Protocol
    • Instant Message
      Database
      Internet protocol
      Presentation overview
      Topic 1
      Topic 2
      Topic 3
    • Instant Message
      “… real time communication between people based on typed text…”
    • Library Philosophy
      “… main role of library in part of social character ، provide and create some instrument to easy and increasing accessing knowledge.”(Azad, asadollah .History and philosophy of librarian )
    • Library task
      Concerns to address
      • Location
      • Human problem
      • Forget
      • Protection
      • Censorship
      • Information Capacity
      • On time
    • New infrastructure for Information service
      Internet and mobile phone
      Trend for IM use(net and mobile base)
      Pew Internet & American Life Project Tracking Survey (2005)
    • use of technology in information science
      RSS
      really simple syndication. An XML-based system for aggregating and rapidly scanning information from blogs, news etc.
      Social network
      A network of people; it can be leveraged to spread messages or ideas using viral marketing techniques.
      SDI & Current Content (CC)
      SDI is a customized literature search strategy saved as user profile and executed on a monthly basis.
      Online Database
      Electronic periodical indexes that enable you to locate and retrieve articles in magazines and journals through the Internet. ...
    • Definition
      Wikipedia
      Instant messaging (IM) is a form of real-time communication between two or more people based on typed text. The text is conveyed via computers connected over a network such as the Internet.
      In plain English
      IM allows you to have live chats with friends and family using your internet connection. It’s free and easy to use.
      Using technology: Instinet Message (IM)
    • Librarians are using IM
      to communicate with coworkers in their own library
      to network and collaborate with colleagues in other libraries
      See Library Success: A Best Practices Wiki for a list of Librarians who IM
      Libraries are offering IM reference service
      See Library Success: A Best Practices Wiki for a list of libraries using IM for reference
      IM (Scope)
    • Instant messaging is free (minus staff time)
      Millions of our patrons use IM every day
      For some, not being available via IM is like not having a telephone number
      Staff can communicate in-house using IM
      IM is user-centered and builds relationships with library users
      Why use IM for reference service ?
    • "I think we're getting people who wouldn't be using the library if they didn't use this method.“
      --Bill Pardue, Virtual Services Librarian Arlington Heights Memorial Library
      Why use IM …
      Concerns to address
      • Location
      • Human problem
      • Forget
      • Protection
      • Censorship
      • Information Capacity
      • On time
    • A subject matter expert Turing test is a variation of the Turing test where a computer system attempts to replicate an expert in a given field .
      Subject Matter Expert Turing test
      `
      Concerns to address
      • Location
      • Human problem
      • Forget
      • Protection
      • Censorship
      • Information Capacity
      • On time
    • All other type of communication (eye contact , body language , etc ) that are useful for better contact omitted.
      Disadvantage (IM)
    • Database
      “… database is an integrated collection of logically related records or files consolidated into a common pool that provides data for one or more ...”
    • Objective
      This is not highly technical presentation
      Understanding Basic Database concepts
      kinds of database
      Identifying different kinds of database consultants.
    • What is a DBMS?
      A collection of computer programs that allow storage, modification, and extraction of information from a database. There are many different types of DBMS ranging from small systems that run on personal computers to huge systems that run on mainframes.
      Examples
      Computerized library systems, automated teller machines, flight reservation systems, computerized parts inventory systems.
    • Introduction to Database Systems
      An Example Database
    • Introduction to Database Systems
      The Product Table
    • Use or not use a DBMS
      Use a DBMS when this is important
      persistent storage of data
      centralized control of data
      control of redundancy
      control of consistency and integrity
      multiple user support
      sharing of data
      data documentation
      data independence
      control of access and security
      backup and recovery
      • Do not use a DBMS when
      • the initial investment in hardware, software, and training is too high
      • the generality a DBMS provides is not needed
      • the overhead for security, concurrency control, and recovery is too high
      • data and applications are simple and stable
      • real-time requirements cannot be met by it
      • multiple user access is not needed
    • Database Design
      The purpose of database design is to create a database which
      is a model of structures of reality
      supports queries and updates modeling processes of reality
      runs efficiently
    • Models of Reality
      DML
      DATABASE SYSTEM
      REALITY
      • structures
      • processes
      DATABASE
      DDL
      • A database is a model of structures of reality
      • The use of a database reflect processes of reality
      • A database system is a software system which supports the definition and use of a database
      • DDL: Data Definition Language
      • DML: Data Manipulation Language
    • Data Modeling
      DATABASE SYSTEM
      REALITY
      • structures
      • processes
      MODEL
      data modeling
      • The model represents a perception of structures of reality
      • The data modeling process is to fix a perception of structures of reality and represent this perception
      • In the data modeling process we select aspects and we abstract
    • Process Modeling
      DATABASE SYSTEM
      process modeling
      REALITY
      • structures
      • processes
      MODEL
      • The use of the model reflects processes of reality
      • Processes may be represented by programs with embedded database queries and updates
      • Processes may be represented by ad-hoc database queries and updates at run-time
    • Tables
      Views
      Triggers
      Stored Procedures
      Functions
      Primary Key
      Foreign Key
      Important RDBMS Objects
    • DATABASE CAPABILITIES
      Data Storage
      Queries
      Optimization
      Indexing
      Concurrency Control
      Recovery
      Security
    • WHO WORK WITH DATABASES
      System Analysts
      Database Designers
      Application Developers
      Database Administrators
      End Users
    • Internet protocol
      “… The Internet Protocol (IP) is a protocol used for communicating data across a packet-switched internetwork using the Internet Protocol Suite, also ...”
    • The Internet Protocol (commonly known as TCP/IP) is the set of communications protocols used for the Internet and other similar networks.
      Definition
    • The Internet Protocol Suite, like many protocol suites, may be viewed as a set of layers. Each layer solves a set of problems involving the transmission of data, and provides a well-defined service to the upper layer protocols based on using services from some lower layers.
      TCP/IP layard
    • TCP/IP Protocol
      Application Layer
      Transport Layer
      Internet Layer
      Link Layer
    • TCP/IP Protocol Suite
      35
      Data Layer