New Information service In New environment: Instant message , database, internet Protocol

Saeed Nezareh

Spring 2010

Tehran University Student

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) Gen Y (ages 18-27, born 1977 or later) 62%

Gen X (ages 28-39, born 1965-1976) 37%

Trailing Boomers (ages 40-49, born 1955-1964) 33%

Leading Boomers (ages 50-58, born 1946-1954) 29%

Matures (ages 59-68, born 1936-1945) 25%

After Work (ages 69+, born 1935 or earlier) 29%

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

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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

is a model of structures of reality

supports queries and updates modeling processes of reality

runs efficiently

The purpose of database design is to create a database which

Models of Reality

REALITY• structures• processes

DATABASE SYSTEM

DATABASE

DML

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

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