Sri Lanka Institute of Information Technology Software Requirements Specification

English Voice and Text to Sinhala Text Translator Application for Android Devices

Sri Lanka Institute of Information Technology

PWD2012-18

Software Requirements Specification

Group Members

IT 10 6071 38 – Wickramanayake W.A.V.M

IT 10 6063 84 - Jayathilaka K.K.G.I.

IT 10 6033 14 - Perera U.L.P.H.

IT 10 6018 84 - Dasanayaka D.M.M.L.

IT 10 6026 38 - Eashwarage D.B.S.

IT 10 6066 98 - Fernando M.L.A.S

Contents

• Introduction• System Diagram • Overall Description • Product Functions • User Characteristics • Constraints • Assumption and Dependencies • External Interfaces• Classes / Objects • Performance Requirements • Summary


Introduction

•The purpose of this presentation is to describe the functional

and non- functional requirements of the English Voice and Text to

Sinhala Text Translator Application for Android Devices.

•This presentation explains system interfaces, user interfaces,

hardware interfaces, software interfaces, communication

interfaces, memory constraints of the project.


Introduction (Contd.)

•Furthermore this presentation describes the functions of this

product. This section of the presentation gives a brief idea about

the main functionalities of the android application.

•User characteristics section clearly point out the kind of users

that will use this product.

•The constraints explains the limitation the developers face while

developing the product.


Scope•Today’s world mobile devices have a very important place. Because it

portable and easy to use. Among them Android devices are the most

popular.

•Already there is an English voice detection mechanism in android. It

enables users to speak in English and then the application detects the

voice and displays it in English texts.

•The software product we are going to develop will get that English text

and translate it into Sinhala sentence.


Scope (Contd.)

•English sentence can be converted to Sinhala sentence with this

Android application and this application will take the advantage of

“Google voice APIs” and the output of the APIs may be the input of

our system, or the sentence can be manually inserted.

•This android application provides a basic grammatically correct

English sentences or an English voice sentence and the sentence

will be translator to Sinhala text. Application can be used to send

Sinhala sentences using SMS/MMS.IT 10 6066 98 - Fernando M.L.A.S

Overview


English voice and text to Sinhala text translator

Designed for use on Android

devices

Using a large database witch

store in a [1] remote server

Does not require a login to access

Device must support Sinhala Unicode and [2] Google Voice API

Internet connection is

necessary

Well performing Processor and Higher RAM integrate in

Android Device


System Diagram


<<System>>English voice and text to Sinhala

text translator

Dictionary Database

<<External Input Option>>

Google Voice API

Internet <<External Input Option>>

Phone Keypad Input

<<External Input Option>>

MMS SMS Text

<<Input And Output System>>Device Data input and display

Internet

Android UserTranslation Request

Respond to TranslationSend Voice to Text

Request

Send Text

Send Voice to Text Request Respond

to request

Request Text Translation

Send RequestMatches

RequestMatches

Send Respond to Request

Respond to Request

Request Keypad

Send Text

Request Text

Send Text

Send Translated text

Product Perspective


Application Translate English sentence to Sinhala sentence

Not like an English Sinhala dictionary, this system converts whole sentence

There are several similar applications like English to Sinhala and Sinhala to English dictionaries (it converts single words not sentence)

Google translator and [12] “Bilingual Expert for English to Sinhala” are similar systems

System interfaces


Application will need the below requirements to execute correctly with the device

Android platform 2.3.3

Android APIs

User interfaces


Hardware interfaces


• ARM-based Single Core ProcessorChipset

• 128 MB RAM; 256 MB Flash ExternalMemory

• Mini or Micro SDStorage• QVGA TFT LCD or larger, 16-bit color or

betterPrimary Display• 5-way navigation with 5 application

keys or touch pad, power, volume controls

Navigation Keys

• Speaker and a MicrophoneSounds

• HSPA Internet connectivityInternet

Communication interfaces


The User must need to connect to the Internet for the full functionality of the

application

3G HSPA Connection is required.

System will use the basic protocols HTTP, WAP.

Memory constraintsApplication is expected to use 32MB of RAM and 20MB of external memory for database management.


OperationsUser will need to send the English sentence to the application. The output sentence will be displayed and user will need to copy the translated text sentence as user desire, to send SMS/MMS or to save as a note.

Site adaptation requirements

Can be downloaded through Android Market or Any source of media

The installation file can be directly run from the phone If the application is downloaded through internet it will be

automatically installed after download

Product Functions

Translate to Sinhala

Paste Selected English Text

Type English Text

Speak

Get Translated Text

User

Copy Translated Text

Validate Sentence

if valid

<<extend>>

<<include>>

Use Case Diagram English to Sinhala Translator


Product Functions

Actors User.Pre-condition Valid English Grammar SentenceFlow of Events 1. Select “Translate”

2. Wait Till Translate.a. Divide Words b. Process Databasec. Validate Sentenced. Sinhala Vocabulary Translatore. Sinhala Sentence Generatorf. Sentence Organizerg. Edit post contenth. Process valid post

Post condition Sinhala sentenceAlternatives 3. If “Unicode” Fonts are not installed, Display a Massage.

Use Case : Get Translated Text


Product FunctionsUse Case : Speak

Actors User.

Pre-condition Valid English Grammar Speak able User

Flow of Events 1. Open Application.2. Select “Text” Option.3. Call the Sentence.

Post condition Speak sentence


Product FunctionsUse Case : Type English Text

Actors User.

Pre-condition Valid English Grammar Know User

Flow of Events 1. Open Application2. Select “Text” Option3. Type Sentence

Post condition Type English Text Sentence


Product FunctionsUse Case : Send SMS/MMS

Actors User.

Pre-condition Sinhala Generated Sentence

Flow of Events 1. Copy Text2. Open MMS/SMS application3. Paste

Post condition Save Sinhala sentence


Product FunctionsUse Case : Paste Selected Sinhala Text

Actors User.

Pre-condition Sinhala Generated Sentence in Clipboard

Flow of Events 1. Close/Minimize Application2. Open Notepad application3. Paste

Post condition Sinhala sentence


User Characteristics

Application can be used by any Sinhala known person and any novice person.

•If User knows English he can speak or type English text to convert.•If user doesn't know English he can use this application to convert any sentence .

e.g. :- received SMS


Constraints


• People who are using our application he/she should perfectly pronouns and write English.

• Application should identify Full shop is the end of the sentence.• A given English sentence can be eight words or less.• If there is a comma in the sentence, application will split the sentence

to several parts

Hello, how are you

Hello How are you

Assumption and Dependencies

Assumptions and

dependencies

The device should have installed English voice to English text

translator application

The device should support /should

have installed Sinhala Unicode.

The android version that have installed in the device should be 2.3(Gingerbread) or

higher than that

The basic password authentication and role

based security mechanisms will be used to protect

database from unauthorized access


Other Requirements

Safety Requirements

•database or server may crash due to power failure or virus attacks of serversystem will have a backup database for important data only•The backup database may contain English to Sinhala Dictionary Database.

Software Quality Attributes

•This system will be very user friendly•user will be able to find the necessary information very easier•To improve System in future there is an option to get feedbacks from users


Software System Attributes• When user wants to translate sentence application should

correctly deliver services• Without any mistake and user friendly• All sentences will be updated to the database for the correct

translation format

Reliability

• When the application has any request at any given time application should be available running in the phone without any exceptions or any time delays

• We will use backup server for give good service Availability

• Maintains of system has restriction for the ordinary users• For avoid hackers interaction system have different storage

medias.• Database of system and maintain panel will be store in

outside server• The main Software can be install inside Client`s android

device .

Security


External Interfaces


User Interfaces

Voice recognition page

Contents• Purpose – Opens Google voice

recognition facility• Inputs – English voice• Outputs – English text• Relationships to other

inputs/outputs – Single output• Screen formats/organization –

Supports low density, medium density, high density

• Window formats/organization – Supports small, medium, large, x-large

External Interfaces(cont….)


Contents

Selection page• Purpose - Select an option• Inputs – Voice/text• Outputs – English sentence• Valid range – 1 selection per one

try• Timing –Maximum timing is 3

seconds• Relationships to other

inputs/outputs – Single output• Screen formats/organization –

Supports low density, medium density, high density

• Window formats/organization – Supports small, medium, large, x-large

• Data formats – Characters/string



Contents

Translation page

• Purpose – Selecting an option• Inputs –Converted text from

Google voice APIs/received text message

• Outputs –Sinhala sentence• Valid range – 1-10 words• Accuracy – “.” Considers as end

of a sentence• Tolerance – 8 words• Units of measure – words• Timing –Maximum timing is 3


inputs/outputs– Single output• Screen formats/organization –

Supports low[4] density, medium density, high density

• Window formats/organization –Supports small[5], medium, large, x-large

• Data formats–Characters/string



Contents

Translated page • Purpose – Use converted text as a message or e-mail

• Inputs –Sinhala sentence• Outputs – SMS/e-mail• Tolerance – same as the inputted

sentence• Units of measure – words• Timing –Maximum timing is 3


inputs/outputs – Multiple outputs

• Screen formats/organization – Supports low density, medium density, high density

• Window formats/organization –Supports small, medium, large, x-large

• Data formats – Characters/string



Hardware interfaces

This application deals with android devices. Such as android[6] phones, pads, tablets.



Software interfacesThe application interacts with a voice to text application. That application detects the user’s voice and translates it to English sentence.

Software Interfaces



Communication interfaces

The application uses internet only to send e-mails. To connect to the internet, the application uses devices‟ integrated internet accessing method.

Internet

Class Diagram

IT 10 6033 14 - Perera U.L.P.H.

Word Deviser

GrammerChecker()WordAdjuster()

<<essential>>

Keyboard User Interface

EnterSentence()Retrive Sentence()

<<essential>>Speech User Interface

GoogleAPI_data

RetriveSpeech_Data()SendSpeech()RetriveTextSentence()

<<optional>>

Sinhala Word Devise

getWord()getWords()

<<desirable>>SMS/MMS Sender

SMS_outboxMMS_outbox

MMS_API_Sender()SMS_API_Sender()

<<desirable>>

Note_Saver

DB_data

Save()Load()

<<essential>>

SMS/MMS Reciver

SMS_inboxMMS_inbox

MMS_API_Receiver()SMS_API_Receiver()

<<desirable>>

Word Spelling checker

Validate Word()

<<essential>>

Output Sentense Generator

TwoWayVocablaryAnaliser()getSentences()

<<essential>>

Output Sentence Devise

SinhalaVocablaryIdentifier()SentencePicker()

<<essential>>

1

0..1

1

0..1

Input Sentence Validator

GrammerChecker()Validate()

<<desirable>>

1

1..n

1

1..n

Input Sentence Divider

EnglishVocablaryChecker()PatternIdentify()

<<essential>>

1

1..1,10

1

1..1,10

Output Sentence Orginizer

VocablaryCorrector()FinazeSentence()

<<essential>>

11 11

Sentence Translator Interface

InputSentenceOutputSentence

SentSentence()RetriveSentence()

<<essential>>

User Interface

TextSentence()

<<essential>>Core Translator Module

Filter_InputSentence()genetateOutputSentence()

<<essential>>

1 11 1

1

1

1

1

Android Device

StartApp()StopApp()getUI()setUI()connectDB()

<<essential>>

1

1

1

1

1..3,10 11..3,10 1 11 11

Performance Requirements

• The performance and the respond of this Application software is very important

Internet bandwidth of the ISPProcessing power of phonePronunciations of usersAndroid version of Client Android Device

IT 10 6033 14 - Perera U.L.P.H.

Performance Requirements

• To Increase performance

Most of the Phone resources are usedInbuilt database functionality for frequent required

queries

IT 10 6033 14 - Perera U.L.P.H.

Design constraints

• IDE software as Eclipse• SQLite for Android inbuilt Database• MySQL for server Database

IT 10 6033 14 - Perera U.L.P.H.

Summary


• Introduction• System Diagram • Overall Description • Product Functions • User Characteristics • Constraints • Assumption and Dependencies • External Interfaces• Classes / Objects • Performance Requirements • Summary

References [1] NQ Mobile Security Research Center, "Security Alert: New Android MalwareDKFBootKi Moves

Towards The First Android BootKit | NQ Mobile U.S. Security Research Center" research.nq.com. 2, March.28, 2012.[Online]. Available: http://research.nq.com/?p=391 [Accessed: March. 28,2012].

[2] Android Developers, "Speech Input | Android Developers" http://developer.android.com.Jan.28, 2011.[Online]. Available: http://developer.android.com/resources/articles/speech-input.html [Accessed: March. 28,2012].

[3] Eclipse, "Eclipse Public License - Version 1.0" http://www.eclipse.org.[Online]. Available: http://www.eclipse.org/legal/epl-v10.html[Accessed: March. 28,2012].

[4] Android Developers, “User Interface Guidelines", 29 Mar 2012. [Online]. Available: http://developer.android.com/guide/practices/ui_guidelines/index.html [Accessed: March. 28, 2012].

[5] Android Developers, “Supporting Multiple Screens", 14 Mar 2012. [Online]. Available: http://developer.android.com/guide/practices/screens_support.html [Accessed: March. 28, 2012].

[6] Android Developers, “package android. Hardware", 08 Feb 2012. [Online]. Available: http://developer.android.com/reference/android/hardware/package-summary.html [Accessed: March. 28, 2012].


References [7] University of new Hampshire, “iPod, iPad, and Android Apps for College Students”,

2010.[online].Available: http://unh.edu/d Software system attributesisabilityservices/ipod-ipad-and-android-apps-college-students [Accessed:March.28,2012].

[8] Systems and internet infrastructure security, “Mobile Phone Security”, 2010.[online].Available: http://siis.cse.psu.edu/phones.html[Accessed:March.28,2012].

[9] Team 6g,” Software Requirements Specification for FACETs Mobile”, vol 2.0, pp 9-11, Nov.2010.

[10] C. L. Anderson and M. Nguyen. A Survey of Contemporary Instructional Operating Systems for use in Undergraduate Courses. Journal of Computing Sciences in Colleges, 21:183-190, October 2005.

[11] Benjamin Carpenter, Ryan Daugherty, Jack Dehlin, Jay Greene , “Android Game Suite Software Design Specification”,vol CS 430, pp 9-10, Mar.2010.

[12] BuddithaHettige,” BEES: Bilingual Expert for English to Sinhala”[online].Available:http://www.dscs.sjp.ac.lk/~budditha/bees.htm.[Accessed: Feb 8,2012]


Thank You !

Documents

Sri Lanka Institute of Information Technology Software Requirements Specification