Matakuliah : Web Database
Tahun
: 2008
Overview Web
Session 3
Last Session Review:
•Overview Database and DBMS
•Advantages of DBMS
•Disadvantages of DBMS
•Overview Relational Database
•Overview SQL
•Data Definition Language
•Data Manipulation Language
2
Agenda:
•Web Basic Concept
•How to put information on Web
•Dynamic Web pages
•New Development of Web
3
Objectives:
•Student understands about Web Basic Concept,
Dynamic Web pages and New Development of Web
•Student can put information on Web
4
Web Basic Concept
• What is a Web?
– An Internet application that allows a wide range of information and services
to be stored and accessed on the Internet.
– Web use Internet to:
• Storing information
• Finding and retrieving information
• Storing and executing computer programs
• Inputting and manipulating information
In almost any part of the world, by almost anyone, using low cost computer system
and communication resources
– Information that can be represented in Web are largely restricted only by the
imagination and skill of the web application designers and implementers.
– Information can be represented as text, numbers, images, graphics, sound or
video
5
Web Basic Concept (cont.)
• Web is highly dependent with Internet
• Internet has standard communications protocols to interconnect
computer network all over the world: TCP/IP (Transmission Control
Protocol/Internet Protocol)
• TCP/IP define the rules and mechanisms by which co-operating
computers can share resources across a network
• TCP/IP Protocol Stack:
–
–
–
–
Application Layer
Transport Layer
Internet Layer
Network Interface Layer
• TCP/IP protocols identify each host by a unique address called IP
Address
6
Web Basic Concept (cont.)
• Other related Web Basic Concept:
–
–
–
–
Web Servers and Web Browser
Search Engine
Universal Resources Locator (URL)
HTTP
7
How to put information on Web
• Information and services stored in Web Server or other system that
is connected by Web Server
• Web Server: a process running in a host computer waiting for HTTP
request to come in
• Web Server configuration:
– NCSA
– Apache Server
– IIS
• Represent Information on Web: Web Document, usually use HTML
• Link between web document to other web document: hyperlink
8
Dynamic Web Page
• What is Dynamic Web Page?
– Web page that has dynamic content, the resources is not static and can be
the output of the programs, or scripts, run on the server.
• Why Dynamic Web Page?
– Make Web more interactive and up-to-date
• What Technology to make Dynamic Web Page?
– Server Side Programs  CGI (Common Gateway Interface)
– Client Side Programs  JavaScript
9
New Development of Web
•
•
•
•
•
•
DOM
Cascading Style Sheets
XML
Web 2.0
AJAX
etc
10
Summary
• Web can not be separated from Internet, those two are highly
connected
• We can publish simple web site by adding static Web Document in
Web Server
• Dynamic Web Page is more interactive than Static Web Page
• Web Technology are still improving and new technology will
continue to develop
11
Next Session:
•Conventional Database Design Method
•Requirements Analysis
•Data Analysis
•Data Design
•Physical Database Design
12
End of
Overview Web
Thank you
13