1. E-Learning Resource Locator
Shri Dharmasthala Manjunatheshwar College of Engineering &Technology
Dharwad-580002
Department of Computer Science & Engineering
Project Report On
E-LEARNING RESOURCE LOCATOR
Team Members
Chiranjeevi Adi
Veerabhadrappa Kallapur
Sanjunath Raye
2SD11CS405
2SD11CS436
2SD10CS087
Project Guide
Basavaraj Vaddatti
Asst. Professor
Dept. of Computer Science & Engineering
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2. E-Learning Resource Locator
E-Learning Resource Locator
1. Introduction
1.1 Methodology----------------------------------------------------------------------------3
1.2 Definitions, Acronyms and Abbreviations---------------------------------------3
1.3 Tools to be used-----------------------------------------------------------------------3
1.4 Reference -------------------------------------------------------------------------------5
1.5 Technologies to be used------------------------------------------------------------6
2. Overall Descriptions
2.1 System Analysis-------------------------------------------------------------------------9
2.2 Scope of the project--------------------------------------------------------------------10
2.3 Existing System-------------------------------------------------------------------------10
2.4 Proposed System-----------------------------------------------------------------------11
2.5 Benefits of users/system--------------------------------------------------------------12
3. Special Requirements
3.1 Functional Requirements-------------------------------------------------------------13
3.2 System Design
3.2.1 UML Diagram----------------------------------------------------------------13
3.2.2 Use case Diagram----------------------------------------------------------14
3.2.3 Class Diagram---------------------------------------------------------------16
3.2.4 Sequence Diagram---------------------------------------------------------18
3.3 E-R Diagram-----------------------------------------------------------------------------20
3.4 Activity Diagram ------------------------------------------------------------------------21
3.5 Data Flow Diagram---------------------------------------------------------------------23
3.6 Table Description-----------------------------------------------------------------------25
3.7 Snapshots--------------------------------------------------------------------------------26
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3. E-Learning Resource Locator
1. Introduction:
1.1) Methodology
“E Leaning-Resource Technology ” is education based website/software ,
helping students to get all resources & study materials of every courses available. It
uses “E-Book” facility. It is reliable & time efficient approach compared to all links of
the website provided by any search engine while searching for course materials.
1.2) Definitions, Acronyms and Abbreviations:
 DB2
Database_2.A database management system that provides a flexible and
efficient database platform to maintain records of students, Professors, admin
and domain.
 JSP
Java Server Pages. It is used to create dynamic web content.
 J2EE
Java 2 Enterprise Edition. A programming platform which is a part of java
platform
for developing and running distributed java.
 HTTP
Hypertext Transfer Protocol. It’s a service protocol.
 NetBeans
Eclipse is a multi-language software development environment comprising a
base workspace and an extensible plug-in system for customizing the
environment.
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4. E-Learning Resource Locator
1.3) Tools Used:
Application architecture – JAVA, J2EE
JAVA
Java is an object-oriented programming language developed by Sun Microsystems a
company best known for its high end UNIX workstations. Java language was
designed to be small, simple, and portable across platforms, operating systems, both
at the source and at the binary level, which means that Java programs (applet and
application) can run on any machine that has the Java virtual machine (JVM)
installed.
J2EE
Java Platform, Enterprise Edition or Java EE is a widely used platform for server
programming in the Java programming language. The Java platform (Enterprise
Edition) differs from the Java Standard Edition Platform (Java SE) in that it adds
libraries which provide functionality to deploy fault-tolerant, distributed, multi-tier Java
software, based largely on modular components running on an application server.
Glash Fish:
Glash Fish is an open source software implementation of the Java Servlet and
Java Server Pages technologies. The Java Servlet and JavaServer Pages
specifications are developed under the Java Community Process.
Glash Fish is developed in an open and participatory environment and
released under the glash fish License version .glash fish is intended to be a
collaboration of the best-of-breed developers from around the world.
Development tool –Net Beans
Net Beans is a multi-language software development environment comprising
a base workspace and an extensible plug-in system for customizing the
environment. It is written mostly in Java. It can be used to develop applications in
Java and, by means of various plug-ins, other programming languages including
Ada, C, C++, COBOL, Fortran, Haskell, Perl, PHP, Python, R, Ruby (including Ruby
on Rails framework), Scala, Clojure, Groovy, Scheme, and Erlang. It can also be
used to develop packages for the software Mathematic. Development environments
include the NetBeans Java development tools (JDT) for Java and Scala, NetBeans
CDT for C/C++ and NetBeans PDT for PHP, among others.
Database platform – DB2:
DB2 Database is the database management system that delivers a flexible and cost
effective database platform to build robust on demand business applications and
supports the J2EE and web services standards.
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5. E-Learning Resource Locator
1.4) References:
* Object Oriented Modeling and Design with UML-Michael Blaha, James Rambaugh.
* Software Engineering, Seventh Edition, Ian Sommerville.
* IBM TGMC Sample Synopsis.
* IBM – www.ibm.in/developerworks .
* Java - www.sun.com
* Wikipedia - www.wikipedia.com
* Database Management Systems - Navathe.
* Complete Reference - J2EE - Keogh.
1.5) Technologies to be used:



DB2: Database Management System.
Glash Fish.
Net Beans.
Software Interface:
Client on Intranet
Web Browser, Operating System (any)
Web Server
Apache Tomcat, Operating System (any)
Data Base Server
DB2, Operating System (any)
Development End
Net Beans (J2EE, Java, Java Bean, Servlets, HTML, XML, AJAX), DB2, OS
(Windows), Glash Fish (Web Server)
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6. E-Learning Resource Locator
Pictorial Representation:
Hardware Interface:
Minimum Requirements:
Client Side
Processor
Internet Explorer –
6/Firefox
RAM
Disk Space
Intel Pentium III or
AMD
800MHZ
128 MB
100 MB
Server Side
Processor
Net Beans
db
RAM
Disk Space
Intel Pentium III or
AMD
800MHZ
1 GB
4 gB
2 Overall Descriptions:
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7. E-Learning Resource Locator
About E-Learning Resource Locator:
E-Learning Resource Locator is a web application designed
exclusively for SDMCET. The project is intended for Computer Science department
of the college.
Using this application all registered students can access the system.
The users of the system can access the required learning materials.
All registered Professors can upload learning materials for students.
The system makes it possible for the students to access all learning
materials from home and interact with the Professors and clarify their doubts on
different subjects.
The students can access notes on any subject. Notes are available
for the students of all branches. Students can download all notes, if they want to.
Moreover, power point presentations on all topics can be uploaded in
to the system.
Publication House can also be allowed to upload the information or
some materials to the students for their learning process and students can also
download those material.
The students can clarify their doubts with the Professors by posting
their questions into the forum.
Any registered professors are allowed to answers or reply to any
questions.
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8. E-Learning Resource Locator
2.1 System Analysis
The proposed E-Learning Resource System has the following features.

Only registered students and Professors can access the system.

Students can view and download all learning materials (notes, ppts).

Students can view ppts of topics which help them to grasp the topics easily.

Professors can upload all learning materials.

Students are allowed to discuss their doubts with the professor.

Students can post their questions into the discussion forum.

Registers professors are allowed to answer to the students questions.

Students are allowed to download the resources.

More than one professors are allowed to answer to the students questions.

Publication house also uploads some subject materials to the students.

The students are also downloading those materials which are uploaded by the
publication house.

Professors also download the materials which are uploaded by the publication
house.
2.2 Scope of the Project
The proposed E-Learning system is simple to use for both Professors and
students. The proposed system includes the following.
Web-based access:
All users who have internet facility can access the system wherever and
whenever they wish.
Document management:
System allows uploading and downloading of documents (pdfs, word
documents, PPT).
Media management:
System allows uploading and downloading of ppts and pdf files.
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9. E-Learning Resource Locator
2.3 EXISTING SYSTEM:
The World Wide Web (WWW or Web in short) E-Learning provides a simple
‘point and click’ means of exploring the immense volume of pages of information
residing on the Internet. Information on Web is presented on Web pages, which
appear as a collection of text, graphics, pictures. In addition, a Web page can
contain hyperlinks to other Web pages. Much of the Web’s success is due to the
simplicity with which it allows users to provide, use and refer to information
distributed geographically around the world.
E-LEARNING RESOURCE LOCATOR DRAWBACKS:

No authentication to access the data.

No access control.

No better security.

It is not time efficient approach.

No database security.
2.4 Proposed System
1. Digital Library
A Digital Library that provides all the learning materials for the
students. It should include notes and questions for each topic.
2. Power point presentations
Ppts of lectures can be uploaded into the system. This can be
viewed by all registered users.
3. Forum
The students can discuss their doubts with the Professors.
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10. E-Learning Resource Locator
2.5 Benefits for Users:
The users of the system include students, Professors, toppers of college and
mentors.
Students:

Students can easily access learning materials from anywhere at any time.

Notes and ppts on various topics are also available.

Students can also discuss with the Professors to clear their doubts.
Professors / Mentors:

Discussion forum is also provided for the users for expressing their views.

Professors can upload notes, ppts and pdf format.
Publication:

Publisher can upload some material to viewer.

Publisher can also provide the uploaded material for downloading.
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11. E-Learning Resource Locator
3. Special Requirements
3.1 Functional Requirements
1. Registration:

Only registered users should be able to access the resources in the system.

He must be able to add or delete new topics to the system.

Administrator must be able to add or delete users to the system.
2. Resources:

Professors must be able to upload documents, pdfs, and ppts files to the
system.

Students must be able to view and download the resources.

It should allow students to view ppts and pdfs.
3. Communication

Students must be able to communicate with the Professors to clear their
doubts.
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12. E-Learning Resource Locator
3.2 System Design
3.2.1 UML Diagrams
Activity diagrams are a loosely defined diagram technique for showing
workflows of stepwise activities and actions, with support for choice, iteration and
concurrency. In the Unified Modelling Language, activity diagrams can be used to
describe the business and operational step-by-step workflows of components in a
system. An activity diagram shows the overall flow of control.
In the Unified Modeling Language (UML), a class diagram is a type of
static structure diagram that describes the structure of a system by showing the
system's classes, their attributes, and the relationships between the classes.
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13. E-Learning Resource Locator
3.2.2 Use Case Diagram
The primary actors of the system are Professors and student and
publisher.
Register
Register
Sign In
SignIn
Search
Search
Material
Material
Student
Resource
Resource
Download
Professor/Mentors
Upload
Resource
Resource
Doenload
Upload
Interaction
Interaction
Publisher
Association
Association
Sign out
Sign Out
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14. E-Learning Resource Locator
Documentation Of Use case Diagram:
i. Professors/Mentors
User role: Tutor
User functions:
a) Content creation,
b) view learner’s progress,
c) answering students questions.
ii. Students/Toppers of college:
User role: Learner
User functions:
a) View learning materials,
b) View personal progress,
c) Interactive discussions
iii. Publication
User Role: publisher
User functions:
a) upload some information.
b) provide some materials.
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15. E-Learning Resource Locator
3.2.3 Class Diagram:
Person
Name
Id
Addres
1
1..*
1..*
1..*
Student
Professor
Publication House
Emp_Id
Emp_name
Address
view_details()
download_resource()
change_password()
register()
Pub_Id
Publiaction_name
Address
Email_Id
Download()
Upload()
Serch()
Logini()
Logout()
USN No
Name
Address
Email Id
Download()
Upload()
login()
logout()
1..*
1..*
1..*
1..*
Uploads/Downloads
Uploads/Downloads
Resource
1
Downloads
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1..*
Resource_id
Resource_type
Subject_name
Author_nam e
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16. E-Learning Resource Locator
Documentation of Class Diagram:
Admin class:
Main class in an e-learning system is admin. Username, password/id and
designation or email are the main attributes of this class.admin_user() is the method
for user login.registration_user() is used for checking whether the username and
password are valid.loging_user() is for logging in ans valid_loging_out() is for logging
out from the system.
Student class: It has many attributes including username, password, usn no and
email id. Download()method is used to view or download the files or material from
the database. search() method is used to search the particular information by
selecting some topic.
Professors class: It has many attributes including username, password, staff code.
Download()method is used to view or download the files or material from the
database. search() method is used to search the particular information by selecting
some topic.
upload_file() is the method for uploading files.
Publication Class: It has many attributes like document code, author id, userlogin,
password, and file types which should be uploaded by the house of publication using
upload() function.
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17. E-Learning Resource Locator
3.2.4 Sequence Diagram
(a) Student
(b) Professors/Mentor
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18. E-Learning Resource Locator
3.3 E R Diagram
E R Diagram of E Learning Resource Locator:
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19. E-Learning Resource Locator
3.4 Activity Diagrams
System Activity Diagram: User Registration Diagram
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20. E-Learning Resource Locator
Activity Diagram: User Login
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21. E-Learning Resource Locator
DOCUMENTATION OF ACTIVITY DIAGRAM:
The user logs in to the system using his username & pwd. Then he selects
a topic and views the learning materials .During learning, he can use the chat facility
to clear doubts. Then he can take test by selecting the difficulty level. A timer is set
at the start of the test. If he is not able to complete within the given time period, then
marks are given for the marked questions only. If he completes within the given
period, then evaluation is done on submitting. He can also view the test record. If he
wants to improve his marks, he can repeat the learning process again.
3.5 Data Flow Diagrams
Introduction
DFD is very useful in understanding a system and can be effectively
used during analysis. A DFD shows the flow of data through a system. It views a
system as a function that transforms the inputs into desired outputs. Any complex
systems will not perform this transformation in a single step, and a data will typically
undergo a series of transformations before it becomes the output. The DFD aims to
capture the transformations that take place within a system to the input data so that
eventually the output data is produced. The agent that performs the transformation of
data from one state to another is called a process (or a bubble). So a DFD shows the
movement of data through the different transformations or the processes in the
system. Named circles show the process and named arrows entering or leaving the
bubbles represent data flows. A rectangle represents a source or sink and is a net
originator or consumer of data. A source or sink is typically outside the main system
of study.
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22. E-Learning Resource Locator
DFD WITH DETAILED EXPLANATION
Context level DFD:
This shows the context level diagram of the system. The users of the system
are Professors, students, toppers of college and mentors.
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23. E-Learning Resource Locator
Level 0 DFD
Student:
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24. E-Learning Resource Locator
Professors:
Level 1 DFD
Process 1(Upload files)
This shows uploading of files by Professors.
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25. E-Learning Resource Locator
Process 2(View files)
Level2 DFD
Process-3 (Select topic)
This shows selecting a particular topic. The user needs to select the semester and
the subject in order to access a particular topic.
Process-4 (Uploading to server)
This shows uploading files to server. The Professors needs to select the file type and
browse the file from the local system to upload it to the server.
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26. E-Learning Resource Locator
3.6) Snapshots
Home Page
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27. E-Learning Resource Locator
AdministratorHomePage
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28. E-Learning Resource Locator
Add Professor Page
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29. E-Learning Resource Locator
Change Password Page:
Delete User Page:
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30. E-Learning Resource Locator
Upload Page:
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31. E-Learning Resource Locator
Download Resource Page:
Discussion Forum Home Page:
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32. E-Learning Resource Locator
Add Query Page:
Reply To Query Page:
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