non visual search engine for visually challenged ppt

8/7/2019 non visual search engine for visually challenged Ppt

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Non-Visual Search engine for

Visually Challenged

BYC.U.MEGHA MALAK.PADMAVATHI



AIM

The aim of the project is tocreate a non-visual search

engine for visuallychallenged people.



Existing System

� According to the WHO·s World Health Report, there areapproximately 45 million people without sight

worldwide. These people don·t have proper tool to getthe information they want.



Proposed System

� There is a need for web based applicationwhere we provide a user friendly applicationfor visually impaired people.



System Requirements

Hardware Requirements

Content Description

Min Max

HardDiskDrive 20GB 40GB

RAM 500MB 1GB



Existing SystemSoftware Requirements

Content Description

OS Windows XP with SP2 orWindows Vista

Database MS-SQL server 2005

Technologies ASP.NET with C#.NET

IDE MS-Visual Studio .Net 2008

Browser Mozilla Firefox, IE 6.



Modules Involved

� Access Management process toallow users to use theapplication.

� User information setup andmaintenance process

� Search Engine process

� Engine data maintenanceprocess

� Voice maintenance andmanagement

� Data Archive and cleanup

process



Data Flow Diagrams

Context level :

ADMIN USER

PROCESS



FIRST LEVEL:

Admin Databas

e

Register

Llogin

User

Search

Pages

Page

Terms

Search

Pages

Logout

Enter data

Enter un and pwd

View/setup

View/setup

View/setu



USER Database

Login

User

Logout

Enter un

And pwd

view



LEVEL 2:

DDatabaseADMIN

User

Searchpattern

Search

terms

Pageterms

Logout

update

update

update

update

update



� User:

USER Database

Update

Listen Search Results



UML DIAGRAMS

Class diagram

tblMasterPreferenceType

PTypeId

PTypeName

Status

tblUserSearches

SearchID

SessionId

SearchString

TimeStamp

Status

tblSearchResults

ResultId

SearchId

SessionId

SequenceId

ResultURL

ResultSummary

Status

tblDefaultPreferences

DPId

PTypeName

DefaultPreferences

Status

tblActionPromptsActionPromptId

ActionId

ActionTypeId

PromptText

Status

tblUserPreferences

SessionId

DateTime

PTypeID

PtypeName

UserPreference

Status

tblActionTypes

ActionTypeID

ActionName

Status



Use case diagram:

DefaultPreference

UserPreference

UserSearch

SearchResults

ActionTypes

Actions

ActionPrompts

admin

PreferenceTypes



Sequence Diagram

Admin PreferenceType Defaul t

Preference

UserPreference UserSearches SearchResults ActionTypes ActionPrompt

setup

view

setup

view

setupview

setup

view

setup

view

setup

view

setupview



Collaboration diagram

Admin

Preferenc

eType

Default

Preference

User

PreferenceUser

Searches

Search

Results

Action

Types

Action

Prompt

1: setup

2: view

3: setup

4: view

5: setup6: view

7: setup

8: view

9: setup

10: view

11: setup

12: view

13: setup14: view



Advantages

� Visually impaired web users can scan

web pages by tabbing from link to

link and listening to the content of

the link text.

� Having consistent navigation across

pages is also important for

maximizing accessibility to people with reading and/or cognitive

disabilities, but again everyone

benef its.



� By having a consistent interface

across a website we can instantly

locate the navigation and page

content without having to look

around for it.

� one of the main advantage is being

that its usability will be improved.



Conclusion

� By using voice conversion mechanisms,we can

create an enhanced and easy to use Search

Engine for visually challenged people

non visual search engine for visually challenged ppt

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