IGNOU MCS-044 Solved Assignment 2012-13

8/22/2019 IGNOU MCS-044 Solved Assignment 2012-13

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Course Code : MCS-044Course Title : Mini Project

Assignment Number : MCA (4)/044/Assign/12Maximum Marks : 100

Weightage : 25%Last Dates for Submission : 15th October, 2012 (For July 2012 Session)

15th April, 2013 (For January 2013 Session)

There are five questions in this assignment carrying 80 marks. Rest 20 marks are

for viva-voce. You may use illustrations and diagrams to enhance the explanations.

Please go through the guidelines regarding assignments given in the Program Guide

for the format of presentation. Assumptions made if any, should be stated.

Background and Project Specifications:

A University like IGNOU wants to design and implement a web-based centralised system

for Synopsis submission for the Project Courses. A Synopsis is created by a student under

the supervision of a Project Guide. A person can be an eligible project guide if he has a

MCA or B. Tech Computer Science degree and at least two years of experience at the
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Industry. An eligible project guide can guide maximum of 6 students in a semester. The

synopsis submission requires a student to fill the relevant synopsis information and

submit it. An incomplete synopsis or the synopsis submitted by ineligible students may be

rejected. Once a synopsis is duly submitted, it is evaluated. A number of synopses are

evaluated by an evaluator. Synopsis may be sent to them electronically and comments for


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improvement, status (Approved or Not Approved) is updated by the evaluator. A bill for

evaluator may automatically be generated when all the synopsis sent to him/her are

evaluated. An evaluator is allotted a maximum of 50 synopses. If an evaluator does not

complete the task of evaluating synopsis in two weeks time then the synopses returns to

the administrator, who sends them to a different evaluator. The system needs to maintain

data of valid students, their synopsis, project guides, evaluator and the evaluation status of

synopsis. You may study such manual system at your Regional Centre.

Q 1: Which Systems Development Life Cycle (SDLC) will you propose for the

specification given above? Justify you selection by evaluating suitability of at least two

SDLCs.

Solution:

SOFTWARE DEVELOPMENT LIFECYCLE (SDLC):

From the inception of a given idea for software system, until it is implemented and

delivered to the customer and even after that the system undergoes the several changes. The

software is said to have a lifecycle known as Software Lifecycle composed of several

phases. Each of these phases results in the development of either a part of the system or

something associated with the system, such as a test plan or user manual.

In the traditional and most common lifecycle model called WATERFALL MODEL, each

phase has well defined starting and ending points with clearly identifiable inputs to the very

next phase attached to it. It is actually the first engineering approach of software

development. Below Figure depicts the Water Fall Model.


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Waterfall model

The waterfall model provides a systematic and sequential approach to software

development and is better than the build and fixes approach. But, in this model, complete

requirements should be available at the time of commencement of the project, but in actual

practice, the requirements keep on originating during different phases. The waterfall model

can accommodate new requirements only in the maintenance phase. Moreover, it does not

incorporate any kind of risk assessment. In the waterfall model, a working model of

software is not available. Thus, there is no way of judging the problems of the software in-

between different phases.

A slight modification of the waterfall model is a model with feedback. Once software is

developed and is operational, then the feedback to various phases may be provided.


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System Requirements and Analysis

Problem Definition:

The System Required to implement the A Synopsis is created by a student under the

supervision of a Project Guide. A person can be an eligible project guide if he has a MCA

or B. Tech Computer Science degree and at least two years of experience at the Industry.

An eligible project guide can guide maximum of 6 students in a semester. The synopsis

submission requires a student to fill the relevant synopsis information and submit it. An

incomplete synopsis or the synopsis submitted by ineligible students may be rejected. Once

a synopsis is duly submitted, it is evaluated. A number of synopses are evaluated by an

evaluator. Synopsis may be sent to them electronically and comments for improvement,

status (Approved or Not Approved) is updated by the evaluator..

Requirements Specification:

System has a different kind of Reports, searching and exploring options, online payment

and billing facility.

Software and Hardware Requirements:

Software and hardware needed for the project:

Hardware Requirement:

Processor : Intel Pentium 4 (3.06 GHz)

Memory : 2 GB RAM.

Network Adapter : Ethernet Adaptor

Modem : 512kbps Voice Fax Data

Secondary Storage : Seagate SATA Hard disk (250 GB)


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Software Requirements:

Platform : Windows

The Operating System : Windows XP Professional sp2

Front-End Tool : Java Server Pages, JSF

Editing tool : Net Beans IDE 6.5.1

Browser : Internet Explorer, Mozilla etc.

Database : My SQL Community Server

Conceptual Models:

We will implement the coding modules which will consist of the following Menu.

1.

2.

3.

4.

5.

6.

7.

8.

Synopsis

Project Guide

Eligible Guide

Experience

Students Strength

Accepted/Rejected

Evaluator

(Approved or Not Approved


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Q 2: What would be major costs of installing the system? What are going to be the

benefits in terms of finances? Perform a cost-benefit analysis for the proposed software.

List the major tasks and milestones of the Project and make a project schedule. You

schedule must include both GANTT and PERT charts. Explain the two charts drawn by

you.

Solution:

Feasibility Studies

Technical Feasibility:

For the System, Required 3 Computer System with the Specification Which Provide

in the Software and hardware Requirement Section.

There is no technical Expertise in the Firm. so, require the Minimum 2 Technical

Expertise For the Manage the System.

Operational Feasibility:

A Synopsis is created by a student under the supervision of a Project Guide. A

person can be an eligible project guide if he has a MCA or B. Tech Computer Science

degree and at least two years of experience at the Industry. An eligible project guide can

guide maximum of 6 students in a semester. The synopsis submission requires a student to

fill the relevant synopsis information and submit it. An incomplete synopsis or the synopsis

submitted by ineligible students may be rejected. Once a synopsis is duly submitted, it is

evaluated. A number of synopses are evaluated by an evaluator. Synopsis may be sent to


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them electronically and comments for improvement, status (Approved or Not Approved) is

updated by the evaluator.

Time Feasibility:

System Will Prepare in 6 Months & 1 Month for the Training a Staff.

Cost-Benefit Analysis:

Cost of Human Resources

o System Analysts = 1 * 15000 =15000

o Software Engineers = 2 *10000 = 20,000

o Programmer = 2*10000 = 20,000

Cost of infrastructure

o Total Computer System Required = 3 * 35 000 = 1,05,000

Cost of training

o Training Staff Member = 12 * 1000 =12,000


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Project Scheduling

GANTT charts:

A very elementary Gantt or Timeline Chart for the development plan is given below. The

plan explains the tasks versus the time they will take to complete.

PERT charts:

Different Tasks for the System

Task ES EF LS LF ST

Specification Part 0 15 0 15 0

Design Database Part 15 60 15 60 0

Design GUI Part 15 45 90 120 75

Code Database Part 60 165 60 165 0

Code GUI Part 45 90 120 165 75

Integrate and Test 165 285 165 285 0


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Write User Manual 15 75 225 285 210

Design

Database Part


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Q 3: Study the system and create a software requirement specification. You must identify

either the processes or objects while analyzing. During the analysis give consideration

to possible input and output of the processes. After identifying the requirements,

create Analysis Models. You may either use the classical approach and draw Entity

relationship model and data flow diagrams (DFD's) up to level 2-3; or you may take

object oriented analysis approach and create class diagram, use case diagram, use

cases etc.


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Context Level DFD

1. Admin3. Student

2. EvaluatorI g no u

Project

System

4. Guide

5. Accepted/ Not 6. Marks

Accepted


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FD for SALE \ PURCHASE of Product

Evaluator Admin

Check

Order

Payments

D3 Evaluator

1.0

Synopsis

System

Approval

Update

D2Synopsis


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Students

Rejected

Synopsis

Submit Checks

Status check & returnD2 Evaluator

Approval


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E-R DIAGRAM

Name Address

Enroll

No.

Title of Project

StudentGuide

Student

Status Admin

Reports Check

Approval

Status

Not Approval

Have

E_name

E_address

Evaluator

E_id

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E

_Pa

y

ment


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Q 4: Think of system architecture and then perform data design. You must perform

normalization on tables up to 3rd normal form. The table design must include Primary

and Foreign keys and constrains. Create the systems flow chart or detailed process

design and state transition diagrams. Also design the user input screens and output

report formats.

Data Dictionary

Login Table

Attributes Stores

User_id Admin Id

Password Admin Password

Student Table

Attributes

Enrollment No.

Student _Name

Address

Contact_no

Title of Project

Comment

Stores

Student ID

Name

Address

Company's Contact No.

Synopsis Title

Additional Comment


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Evaluator Table

Attributes

E_id

E_name

E_address

Payment

Stores

Evaluator ID

Name

Address

Payment of Evaluator

Guide Table

Attributes

Guide_ID

Guide_Name

Guide_Qualification

Guide_Address

Stores

Guide ID

Name of Guide

Qualification

Address

Q 5: Design various unit test cases for different testing techniques/strategies.

Solution:

The Goal of Testing

In different publications, the definition of testing varies according to the purpose, process,

and level of testing described. Miller gives a good description of testing in :

The general aim of testing is to affirm the quality of software systems by systematically

exercising the software in carefully controlled circumstances.


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Miller's description of testing views most software quality assurances activities as testing.

He contends that testing should have the major intent of finding errors. A good test is one

that has a high probability of finding an as yet undiscovered error, and a successful test is

one that uncovers an as yet undiscovered error.

This general category of software testing activities can be further divided. For purposes of

this paper, testing is the dynamic analysis of a piece of software, requiring execution of the

system to produce results, which are then compared to expected outputs.

The Testing Spectrum

Testing is involved in every stage of software life cycle, but the testing done at each level

of software development is different in nature and has different objectives.

Uni t Testingis done at the lowest level. It tests the basic unit of software, which is the

smallest testable piece of software, and is often called "unit", "module", or "component"

interchangeably.

I ntegration Testingis performed when two or more tested units are combined into a larger

structure. The test is often done on both the interfaces between the components and the

larger structure being constructed, if its quality property cannot be assessed from its

components.

System Testingtends to affirm the end-to-end quality of the entire system. System test is

often based on the functional/requirement specification of the system. Non-functional

quality attributes, such as reliability, security, and maintainability, are also checked.


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Acceptance Testingis done when the completed system is handed over from the developers

to the customers or users. The purpose of acceptance testing is rather to give confidence

that the system is working than to find errors.

Static Analysis and Dynamic Analysis

Based on whether the actual execution of software under evaluation is needed or not, there

are two major categories of quality assurance activities:

Static Analysisfocuses on the range of methods that are used to determine or estimate

software quality without reference to actual executions. Techniques in this area include

code inspection, program analysis, symbolic analysis, and model checking.

Dynamic Analysisdeals with specific methods for ascertaining and/or approximating

software quality through actual executions, i.e., with real data and under real (or simulated)

circumstances. Techniques in this area include synthesis of inputs, the use of structurally

dictated testing procedures, and the automation of testing environment generation.

Generally the static and dynamic methods are sometimes inseparable, but can almost

always discussed separately. In this paper, we mean dynamic analysis when we say testing,

since most of the testing activities (thus all the techniques studied in this paper) require the

execution of the software.


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Functional Technique and Structural Technique

The information flow of testing is shown in Figure 1. As we can see, testing involves the

configuration of proper inputs, execution of the software over the input, and the analysis of

the output. The "Software Configuration" includes requirements specification, design

specification, source code, and so on. The "Test Configuration" includes test cases, test plan

and procedures, and testing tools.

Based on the testing information flow, a testing technique specifies the strategy used in

testing to select input test cases and analyze test results. Different techniques reveal

different quality aspects of a software system, and there are two major categories of testing

techniques, functional and structural.

Functional Testing: the software program or system under test is viewed as a "black box".

The selection of test cases for functional testing is based on the requirement ordesign

specification of the software entity under test. Examples of expected results, some times

are called test oracles, include requirement/design specifications, hand calculated values,

and simulated results. Functional testing emphasizes on the external behavior of the

software entity.

Structural Testing: the software entity is viewed as a "white box". The selection of test

cases is based on the impl ementation of the software entity. The goal of selecting such

test cases is to cause the execution of specific spots in the software entity, such as specific

statements, program branches or paths. The expected results are evaluated on a set of

coverage criteria. Examples of coverage criteria include path coverage, branch coverage,

and data-flow coverage. Structural testing emphasizes on the internal structure of the

software entity.


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Sr. Screen Test Case ID Do Expected Result

No.

1. Login Screen QT1-001 Enter user id in the text box Successful login in

specified. to the system if theUser id must not be more values are found in

than 100 characters and it the database.should not contain anyspecial characters and no

spaces including in the

start.

Enter password in the textbox specified. Passwordmust between 6 & 16

characters.

2 Student detial QT1-002 User Enter SuccessfulTitle of Project Registration if the

Guide data is saving in theDatabase.

3 Status QT1-003 Synopsis Status StatusApproved /Not Approved

4 Evaluator QT1-004 Evaluator check a synopsis Successful Enter

and give the Job if the data isremarks/commentPayment


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IGNOU MCS-044 Solved Assignment 2012-13