Ce Ng 497 Final Report

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FATIH UNIVERSITY

FACULTY OF ENGINEERING

COMPARISON SHOPPING SITE SYSTEM

By

Ahmet Faruk BİŞKİNLER & Mehmet ÇOKYILMAZ

07010441 & 07010321

Advisor: Assist Prof. Atakan KURT



21 January 2008

ii




by


A Senior Design Final Report Submitted to

The Department of Computer Engineering

of

Fatih University

in partial fulfillment of the requirements for the degree of

Bachelor of Science

in

Computer Engineering

September 2013

Istanbul, Turkey



ABSTRACT



Computer Engineering

September 2013

Advisor: Ins. Assist Prof. Atakan KURT

The purpose of Comparison Shopping Site System is to develop an e-commerce site to

provide comparison of online shopping products and their information among lots of online

shopping sites for consumers who use internet for shopping. Comparison Shopping Site

System is composed of two main parts. One of them is crawling part that visits onlineshopping sites, gathers information about products and store them into database. Other part is

front-end part that contains interactions with customers and online shopping sites.

Comparison Shopping Site System is very helpful in order to find more suitable and cheaper

products basically and fast. PHP, XML and MySQL Database System are used in Comparison

Shopping Site System.



TABLE OF CONTENTS

TABLE OF CONTENTS............................................................................................................iLIST OF FIGURES..................................................................................................................iiiLIST OF TABLES....................................................................................................................ivLIST OF SYMBOLS AND ABBREVIATONS........................................................................vCHAPTER 1

INTRODUCTION......................................................................................................................11.1. Project Overview and Purposes.......................................................................................11.2. Scope of Project...............................................................................................................11.3. Success Criteria of Project...............................................................................................1

CHAPTER 2..............................................................................................................................1BACKGROUND AND MOTIVATION...................................................................................1CHAPTER 3..............................................................................................................................3 PROPOSED SYSTEM...............................................................................................................3

3.1. Project Overview..............................................................................................................33.2. Functional Requirements.................................................................................................3

3.2.1. Searching A Product From The Web Site................................................................33.2.2. Sorting Searched Products.......................................................................................43.2.3. Listing Products ......................................................................................................53.2.4. Narrowing Search Results........................................................................................6

3.2.5. Going to Web Site for Selling a Product..................................................................73.2.6. Create New User......................................................................................................83.2.7. User Login................................................................................................................93.2.8. Adding Product by Hand........................................................................................103.2.9. Adding Product by Uploading XML File..............................................................113.2.10. Viewing XML File Uploads................................................................................123.2.11. Viewing XML File...............................................................................................133.2.12. Lost Password or Forgetten Password.................................................................133.2.13. Banner Upload.....................................................................................................143.2.14. Administrator Login.............................................................................................153.2.15. Administrator Approves XML Files....................................................................16

3.3. Non functional Requirements........................................................................................181.1. Usability ...................................................................................................................181.2. Reliability .................................................................................................................181.3. Performance .............................................................................................................181.4. Implementation Platform..........................................................................................18

3.4. System Models ..............................................................................................................193.4.1. Use Case.................................................................................................................193.4.2. Activity...................................................................................................................203.4.3. Relational Database Schema..................................................................................213.4.4. Entity Relationship Diagram..................................................................................23

CHAPTER 4............................................................................................................................25

IMPLEMENTATION...............................................................................................................25

i



Comparison Shop System Structure...............................................................................254.1. index.php............................................................................................................................254.2. config.php..........................................................................................................................254.3. out.php................................................................................................................................264.4. login.php............................................................................................................................26

4.5. database.php..............................................................................................................264.6. admin/index.php.......................................................................................................274.7. admin/database.php...................................................................................................274.8. include/function.php.................................................................................................274.9. include/geshi.php......................................................................................................27

Handes the code coloring.........................................................................................................27CHAPTER 5............................................................................................................................28CONCLUSION........................................................................................................................28CHAPTER 6............................................................................................................................29GLOSSARY.............................................................................................................................29CHAPTER 7............................................................................................................................30

REFERENCES.........................................................................................................................30

ii



LIST OF FIGURES

Figure 3.4.1.1 User Service.......................................................................................................19Figure 3.4.1.2 Brand Management Services.............................................................................19Figure 3.4.1.3 Crawler System..................................................................................................19Figure 3.4.1.4 Store Management Service................................................................................20Figure 3.4.4.5 Entity Relationship Diagram.............................................................................23

iii



LIST OF TABLES

iv



LIST OF SYMBOLS AND

ABBREVIATONS

DBMS Database Management System

GUI Graphical Use Interface

URL Uniform Resource Locator

PHP Personnel Home Page

IDE Integrated Development Environment

v



CHAPTER 1

INTRODUCTION

1.1. Project Overview and Purposes

Comparison Shopping Site System is a web based application site that collects

information of the products from different shopping sites, and serves these information to the

users. So the users can find products very fast and easier with using our comparison shop site

system instead of investigating lots of shopping sites. Comparison shopping site system is

composed of two main parts. One of them is crawling part that visits the shopping sites,

gathers information about products and store them into database. Other part is front-end partthat serves information to the customers.

The main purpose of the project is to help the customers to find and buy products by

comparing lots of products from different shopping sites. It allows a smart searching in order

to increase the luck of finding products that are searched by user.

The other purpose of the projects is comparing the products by their prices, in order to

help the users to find the cheapest product.

1.2. Scope of Project

This system can be used by everyone who wants to make an online shopping.

Generally people can use this system to compare a product in different shopping sites.

1.3. Success Criteria of Project

Two main criteria that make this system successful are to;

1. Provide time saving for customers to find information of products from thousands of

shopping sites instead of visiting one by one.

2. Provide money saving for customers to compare the prices of products from different

shopping sites.

1



CHAPTER 2

BACKGROUND AND MOTIVATION

From the late 1990s, the range of information, products, and services available on the

internet grew massively. At the same time, the popularity of the Internet also grew at a

phenomenal rate. So, the internet became very beneficial platform in terms of making life

easy. Online shopping is one aspect of internet that makes life easy and convenience. Online

shopping is important because it offers buyers convenience that has never before been

achievable. The technology that is now available allows customers to shop on the internet 24

hours a day and seven days a week, without having to leave their homes or offices. Shoppers

are provided with an abundance of merchant sites where almost any goods on earth can be

bought. Consumers can also compare prices from a variety of different retailers with greater

ease, compared to them physically going to shop in a built shopping centre to check prices.

Nowadays, there is a new concept that is more popular that online shopping sites are

Comparison Shopping Sites. The mission of these kinds of sites is to help consumers

anywhere use the power of information to easily find, compare and buy anything online – in

less time and for the best price.

There are some problems on comparison shopping sites. The most important problem

is that to gather product information into database of comparison sites and update the database

regularly. Programmers produce different systems in order to solve this problem. One kind of

this system is called web crawler. Web crawler is a program that browses web pages and

filters needed information from these pages. Web crawlers are the core part of the searching

process.

1



Figure 2.1.3.1 Architecture of a Standard Web Crawler

2



CHAPTER 3

PROPOSED SYSTEM

3.1. Project Overview

Comparison Shopping Site System is a web based application site that collects

information of the products from different shopping sites, and serves these information to the

users. So the users can find products very fast and easier with using our comparison shop site

system instead of investigating lots of shopping sites. Comparison shopping site system is

composed of two main parts. One of them is crawling part that visits the shopping sites,

gathers information about products and store them into database. Other part is front-end part

that serves information to the customers.

3.2. Functional Requirements

3.2.1. Searching A Product From The Web Site

Searching a product from indirim.com is very simple process for users. In the search

panel, users will enter search key into the textbox; the search process will start, after pressing

the “ARA” button.

Figure 3.2.2Main Page

3



3.2.2. Sorting Searched Products

User will sort products in terms of product names and product prices. It is also very

simple process for users. There are two sorting links; “ürün” and “fiyat”. User will click oneof sorting links and sorting process will be automatically done by system.

The products are placed unsorted after an search. When user clicks one of the sorting

links, the system will sort products by ascending order. After clinking the link second time,

the system sorts products by descending order automatically.

Figure 3.2.3 Sorting Searched Products

4



3.2.3. Listing Products

Twenty products are shown per page. User will check all products page by page by

selecting page number from the bottom menu of the web site.

Figure 3.2.4Listing Products

5



3.2.4. Narrowing Search Results

User will narrow search results in terms of price interval, product category, online

seller sites. There are 2 menu groups left side of the page for this process. The system allows

multiple narrowing criteria. For example, the user can narrow search of prices between 20

YTL and 300 YTL, after he/she narrowed the search results he/she can also filter an specific

online seller site like “alisveris.com”. So, the results contain the price between 20 YTL and

300 YTL and only from “alişveris.com”.

Figure 3.2.5 Narrowing Search Results

6



3.2.5. Going to Web Site for Selling a Product

After the user searches and finds the right product to buy, the user may click the name

of product for going to the original web site. The system sends the user to the online shopping

site to buy. Buying process will be done in the real site of the product.

Figure 3.2.6Going to Web Site for Selling a Product

7



3.2.6. Create New User

A registered user has the opportunity to add his own products to our database byuploading or entering by hand and many more services are provided.Registering to site is easy. Enter your username, a password, name, surname and an email will

do.

Figure 3.2.7 Create New User

8



3.2.7. User Login

For a user to benefit from the services the user needs to login.User enters his/her username and password to login.

Figure 3.2.8 User Login

9



3.2.8. Adding Product by Hand

The user can add his/her own product by using the form provided to the registered users.The form should be filled with the products Name, Shortdescription, Longdescription,Uppercategory, Category, Url, Imageurl, Price, Pricevat, Currencyunit and a Shortname.

Figure 3.2.9 Adding Product by Hand

10



3.2.9. Adding Product by Uploading XML File

Click Upload XML from the left menu then browse the xml file finally clicking Upload XML button will upload the xml to the server.

Figure 3.2.10 Adding Product by Uploading XML File

11



3.2.10. Viewing XML File Uploads.

The user can see his/her uploaded xml files from the “List View” menu.

Figure 3.2.11 Viewing XML File Uploads

12



3.2.11. Viewing XML File.

The user can see his/her uploaded xml files from the “List View” menu. Then choosing Viewlink from the list.

Figure 3.2.12 Viewing XML File

3.2.12. Lost Password or Forgetten Password.

The user can see his/her retrieve a new password from the system by entering his/her email.

Figure 3.2.13 Lost Password or Forgetten Password

13



3.2.13. Banner Upload.

User may give adverdtesment by uploading a .gif file.

Figure 3.2.14 Banner Upload

14



3.2.14. Administrator Login

The Administrator Login System controls all the events, the user information and the holesystem.

Figure 3.2.15 Administrator Login

15



3.2.15. Administrator Approves XML Files

User uploaded XML datas should be approved by the administrator. Administrator may delete, publish or see the contents.

Figure 3.2.16 Administrator Approves XML Files

16



General Functional Requirements:

1. The crawler part of the system will gather information about products from different

shopping sites. First of all, the system visit an online shopping site, find all page links

as URL for this site and save these URLs into database. Then, it checks all URLs and

takes the necessary information of the products such as name, URL address, image

address, price, money unit and tax.

2. The products will be categorized into database.

3. The users will be able to search products.

4. Result of the search will be shown in a table format that contains product image,

name, price and source URL.

5. There will be smart search feature. This feature is provided by using full-text search

functions in MySQL.

6. The site will be updated frequently. New and nearly come products will be shown

highlighted in the site.

7. The searched products stored into database with a hit point value. The most frequently

searched products will be offered to customers in the site.

8. Users can compare price of a product into different shopping sites and sort them by

their prices.

Functional Requirements Related with User Services:

1. The site will have services for specific users.

2. The users will be able to see their search history.

3. The users will be able to create their favorite product and brand list.

4. According to the users’ favorite product lists, the site will offer and inform them about

new, cheapest, nearly coming products and new brands via e-mail or cell-phone.

5. According to the users’ favorite product lists, the site will inform them about products

when a change occurs to the price of products via e-mail or cell-phone.

Functional Requirements Related with Store Services

1. Online shopping stores will add their store links into our database to be crawled.

2. Online shopping stores will add their advertisements into our site.

3. Online shopping stores will add their products and prices into our database directly.

17



Functional Requirements Related with Brand Services

1. The site will have an advertisement control system.

2. Brand owners, factories, firms add their advertisement into the site.

3.3. Non functional Requirements

1.1. Usability

The system has a simple user interface that makes it user-friendly. In addition to

this, pages loaded very fast because of simplicity.

1.2. Reliability

If the crawling process is interrupted or stopped because of some unexpected

errors, the crawling process will resume from where the process left.

The user services will be secure; the information that belongs to a user will be kept

in safe.

1.3. Performance

The simplicity makes the system to load the pages more fast which earns us the

performance.

1.4. Implementation Platform

• Programming language: Comparison Shopping Site System will be

implemented in PHP, MySQL.

• Development Environment: Comparison Shopping Site System will be

implemented on a Windows PC with Apache Web Server and MySQL Database Server.

The PHPEdit 2.12.2 will be used as an Integrated Development Environment (IDE).

18



3.4. System Models

3.4.1. Use Case

Figure 3.4.1.1 User Service

Figure 3.4.1.2 Brand Management Services

Figure 3.4.1.3 Crawler System

19



Figure 3.4.1.4 Store Management Service

3.4.2. Activity

Figure 3.4.2.1 Activity of User Sorting Product

20



3.4.3. Relational Database Schema

Categories (ccategoryid, cname, cParentID, ckeywords, ccount)

Products (productid, pname, paddress, ppictureaddress, pprice, pmoneyunit,

ptaxincluded, pdescription, categoryid, pmodificationtime, sellerid, hitout)

Sellers (sellerid, fullname, saleinternet, username, password, hitout, crawlwait,

crawling, startedcrawling, finishedcrawling, crawledproductcount, crawlcount)

Search (searchtext, counter)

Crawl (cid, csellerid, caddress, caddresslabel, cinlinks, coutlinks, cvisited,

cvisitdatetime, cpagelength, cparentpage)

Users (userid, username, password, usermail, phonenumber)

Favorite (userid, productid)

Categories Table.Field Name Field Descriptionccategoryid Category IDcname Category NamecParentID Category Parent IDckeywords Category keywordsccount Count the number of products in the categoryTable 3.4.3.0.1 Categories Table

Crawl Table.Field Name Field Descriptioncid Crawler IDcsellerid Seller IDcaddress Crawling Link Addresscaddresslabel Crawling Link Address Labelcinlinks Crawling Link on Comparison Shopping Systemcoutlinks Crawler Link out crawled URLcvisited Crawler Link is visitedcvisitdatetime Crawler visited the URL on which date and time

cpagelength Web Page length in KB.cparentpage The referrer Table 3.4.3.0.2 Crawl Table

Users Table.Field Name Field Descri ptionuserid User IDusername User name

password User passwordusermail User mail

phonenumber User phone number Table 3.4.3.0.3 Users Table.

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Favorite Table.Field Name Field Descriptionuserid User ID

productid Product IDTable 3.4.3.0.4 Favorite Table.

Search Table.Field Name Field Descriptionsearchtext Searched Textcounter How many time the user searched this textTable 3.4.3.0.5 Search Table.

Sellers Table.Field Name Field Description

sellerid Seller fullname Seller full namesaleinternet Internet address of the seller username Seller user name to login

password Seller password to loginhitout Number of times the Seller link is clickedcrawlwait Seller is in the wait statuscrawling Seller is in the crawling statusstartedcrawling Seller is in the started crawling statusfinishedcrawling Seller is in the finished crawling status

crawledproductcount Seller’s number of products crawledcrawlcount Seller number of crawledTable 3.4.3.0.6 Sellers Table.

Products Table.Field Name Field Description

productid Product ID pname Product’s Name paddress Product’s Address ppictureaddress Product’s Picture Address

pprice Product’s Price pmoneyunit Product Money Unit (USD, YTL, EUR) ptaxincluded If the Product’s Tax Included or Not pdescription Product’s Descriptioncategoryid Product’s Category Id

pmodificationtime Product Modified Timesellerid Product Seller Idhitout Number of times the product link is clickedTable 3.4.3.0.7 Products Table.

22



3.4.4. Entity Relationship Diagram

Figure 3.4.4.5 Entity Relationship Diagram

23



24



CHAPTER 4

IMPLEMENTATION

This section of report includes implementation details of Comparison Shop Sitesystem.

Comparison Shop System Structure

4.1. index.php

index.php file is the main file of the system. When the web site is opened, this file is run

firstly. All general applications are done by this php file.

• search() – This function takes the search key split it into words and call

formQuery() function in order to create an SQL query for search.

• formQuery() – This function takes the words and return an SQL query for search.

• listing() – This function takes the created SQL query runs it and show the

information in the screen.

• sayfalama() – This function calculate the number of pages that the search results

are shown.

• splitText() – This function splits search key into words if the search key is

composed of two or more words.

• filterWords() – This function filters the search key. If they have bad words, the

search process returns zero number of products.

• updateSearches() – This function calculate how many times a search key is

searched. If a word is searched, function inserts the key into database or

increments its counter

4.2. config.php

config.php file provides database connection.

• db_connect() – This function provides a database connection between the system

and MySQL Database System.

25



4.3. out.php

Out.php file sends the user into the products web page.

4.4. login.php

Shows login form for normal user to login. See Figure 3.2.7.

4.5. database.php

Manages user requires. Like upload XML file.

The XML files has the definition as on table

26

<?xml version="1.0" encoding="UTF-8"?>

<!DOCTYPE PRODUCTCATALOG[<!ELEMENT PRODUCTCATALOG (PRODUCTS)+><!ELEMENT PRODUCTS (NAME,SHORTDESCRIPTION?,LONGDESCRIPTION?,UPPERCATEGORY?,CATEGORY?,URL,IMAGEURL?,PRICE,PRICEVAT,CURRENCYUNIT,SHORTNAME)>

<!ELEMENT NAME ( #PCDATA )><!ELEMENT SHORTDESCRIPTION ( #PCDATA )><!ELEMENT LONGDESCRIPTION ( #PCDATA )><!ELEMENT UPPERCATEGORY ( #PCDATA )><!ELEMENT CATEGORY ( #PCDATA )><!ELEMENT URL ( #PCDATA )>

<!ELEMENT IMAGEURL ( #PCDATA )><!ELEMENT PRICE ( #PCDATA )>

<!ELEMENT PRICEVAT ( #PCDATA )><!ATTLIST PRICEVAT kdv CDATA #REQUIRED >

<!ELEMENT CURRENCYUNIT ( #PCDATA )><!ELEMENT SHORTNAME ( #PCDATA )>]>

Table 4.5.8 Document Type Definition



An Example file:

4.6. admin/index.php

Shows login form for administrator user to login. See Figure 3.2.14.

4.7. admin/database.php

Manages administrator requires.

4.8. include/function.php

Includes all the functions used by the database.php classes.

4.9. include/geshi.php

Handes the code coloring.

27

<?xml version="1.0" encoding="ISO-8859-9" ?><!DOCTYPE PRODUCTCATALOG (View Source for full doctype...)><PRODUCTCATALOG>

<PRODUCTS>

<NAME>TECRA A8-103 INTEL CORE 2 DUO T5500 1.66Ghz 1GB 100GB TAŞINABİLİR BİLGİSAYAR </NAME><SHORTDESCRIPTION>TECRA A8-103 INTEL CORE 2 DUO T5500 1.66Ghz 1GB 100GB

TAŞINABİLİR BİLGİSAYAR </SHORTDESCRIPTION>

<LONGDESCRIPTION>Intel® Core 2 Duo T5500(1.66 GHz, 2MB L2 cache, 667 MHZ FSB),Intel® PRO/Wireless 3945ABG ağ bağlantısı ve Intel® 945 GM chipsetStandard : 1.024 MB (2x512),Maximum : 4,096 MBTeknoloji : DDR2 RAM (533 Mhz) 100 GB (5.400 rpm)Seri ATA HDD Microsoft® Windows® Vista Business Edition Türkçe / İngilizceDVD Super Multi (DVD±R/RW, DVD-RAM) çift katmanlı sürücü

</LONGDESCRIPTION><UPPERCATEGORY>Bilgisayar > Taşinabilir Bilgisayar</UPPERCATEGORY><CATEGORY>Bilgisayar< /CATEGORY>

<URL>http://www.alisveris.com/asp/show_stock.asp?product=1503266870</URL><IMAGEURL>http://www.alisveris.com/content_files/prd_images/223K.JPG</IMAGEURL>

<PRICE>1.399,00</PRICE><PRICEVAT kdv="18">1.576,08</PRICEVAT>

<CURRENCYUNIT>USD</CURRENCYUNIT><SHORTNAME>alisveris.com</SHORTNAME></PRODUCTS>

</PRODUCTCATALOG>

Table 4.5.9 Example of a well defined XML file.



CHAPTER 5

CONCLUSION

To summarize; Comparison Shop Site System is a web crawler e-commerce site. PHPand MySQL technologies will be used in this project. Basically, the system will do such

thing; Web crawler application will visit different online shopping sites, gather product

information from these sites automatically, and store this information into database. In

addition to this, Comparison Shop Site System will serve comparison feature to users. Then,

the information about products in database will be shown by searching. The results will be

compared in different shopping sites in terms of price. So, this helps online shopping

customers to find and buy cheapest products via internet fast and easily.

28



CHAPTER 6

GLOSSARY

Web Crawler: A web crawler (also known as a web spider or web robot) is a program or

automated script which browses the World Wide Web in a methodical, automated manner.

Many sites, in particular search engines, use spider as a means of providing up-to-date data.

Web crawlers are mainly used to create a copy of all the visited pages for later processing by

a search engine that will index the downloaded pages to provide fast searches. Crawlers can

also be used for automating maintenance tasks on a website, such as checking links or

validating HTML code. Also, crawlers can be used to gather specific types of information

from Web pages, such as harvesting e-mail addresses (usually for spam).

PHP: PHP is a reflective programming language originally designed for producing dynamic

web pages. PHP is used mainly in server-side scripting, but can be used from a command line

interface or in standalone graphical applications. PHP is a widely-used general-purpose

scripting language that is especially suited for Web development and can be embedded into

HTML. PHP generally runs on a web server, taking PHP code as its input and creating Web

pages as output.

MySQL: MySQL is a multithreaded, multi-user SQL database management system. MySQL

is popular for web applications. Its popularity for use with web applications is closely tied to

the popularity of PHP.

PHPEdit: PHPEdit is a commercial IDE developed by WaterProof SARL. It is written in

Delphi and runs on the Microsoft Windows operating system, and is designed mainly for the

PHP language, but supports many other languages such as CSS, HTML, JavaScript, INI,

PHPEditScript, PHP, PlainText, SQL, XML, and XSLT.

29

http://en.wikipedia.org/wiki/World_Wide_Web

http://en.wikipedia.org/wiki/Search_engine

http://en.wikipedia.org/wiki/Index_(search_engine)

http://en.wikipedia.org/wiki/HTML

http://en.wikipedia.org/wiki/Spamming

http://en.wikipedia.org/wiki/Reflection_(computer_science)

http://en.wikipedia.org/wiki/Programming_language

http://en.wikipedia.org/wiki/Dynamic_web_page


http://en.wikipedia.org/wiki/Server-side_scripting

http://en.wikipedia.org/wiki/Command_line_interface


http://en.wikipedia.org/wiki/Graphical_user_interface

http://en.wikipedia.org/wiki/Web_development

http://en.wikipedia.org/wiki/Web_server

http://en.wikipedia.org/wiki/Thread_(computer_science)

http://en.wikipedia.org/wiki/Multi-user

http://en.wikipedia.org/wiki/SQL

http://en.wikipedia.org/wiki/Database_management_system

http://en.wikipedia.org/wiki/Web_application

http://en.wikipedia.org/wiki/PHP

http://en.wikipedia.org/wiki/Integrated_development_environment

http://en.wikipedia.org/wiki/Delphi_programming_language

http://en.wikipedia.org/wiki/Microsoft_Windows

http://en.wikipedia.org/wiki/Operating_system


http://en.wikipedia.org/wiki/Cascading_Style_Sheets


http://en.wikipedia.org/wiki/JavaScript

http://en.wikipedia.org/wiki/INI_file



http://en.wikipedia.org/wiki/XML

http://en.wikipedia.org/wiki/XSLT

http://en.wikipedia.org/wiki/World_Wide_Web

http://en.wikipedia.org/wiki/Search_engine

http://en.wikipedia.org/wiki/Index_(search_engine)


http://en.wikipedia.org/wiki/Spamming

http://en.wikipedia.org/wiki/Reflection_(computer_science)

http://en.wikipedia.org/wiki/Programming_language



http://en.wikipedia.org/wiki/Server-side_scripting



http://en.wikipedia.org/wiki/Graphical_user_interface

http://en.wikipedia.org/wiki/Web_development

http://en.wikipedia.org/wiki/Web_server

http://en.wikipedia.org/wiki/Thread_(computer_science)

http://en.wikipedia.org/wiki/Multi-user


http://en.wikipedia.org/wiki/Database_management_system

http://en.wikipedia.org/wiki/Web_application


http://en.wikipedia.org/wiki/Integrated_development_environment

http://en.wikipedia.org/wiki/Delphi_programming_language

http://en.wikipedia.org/wiki/Microsoft_Windows

http://en.wikipedia.org/wiki/Operating_system


http://en.wikipedia.org/wiki/Cascading_Style_Sheets


http://en.wikipedia.org/wiki/JavaScript

http://en.wikipedia.org/wiki/INI_file



http://en.wikipedia.org/wiki/XML

http://en.wikipedia.org/wiki/XSLT



CHAPTER 7

REFERENCES

1- Web Crawler http://en.wikipedia.org/wiki/Web_crawler

2- Online Shoppinghttp://wiki.media-culture.org.au/index.php/Online_Shopping

3- Some Comparison Shopping Site Example• www.shopping.com

• www.shopzilla.com

• www.bizrate.com

• www.pricegrabber.com• www.smarter.com

• www.nextag.com

• www.become.com

http://en.wikipedia.org/wiki/Web_crawler

http://wiki.media-culture.org.au/index.php/Online_Shopping

http://www.shopping.com/

http://www.shopzilla.com/

http://www.bizrate.com/

http://www.pricegrabber.com/

http://www.smarter.com/

http://www.nextag.com/

http://www.become.com/

http://en.wikipedia.org/wiki/Web_crawler

http://wiki.media-culture.org.au/index.php/Online_Shopping

http://www.shopping.com/

http://www.shopzilla.com/

http://www.bizrate.com/

http://www.pricegrabber.com/

http://www.smarter.com/

http://www.nextag.com/

http://www.become.com/

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