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SYNOPSIS

This project MOBILE SALES AND SERVICE SYSTEM maintains the sales and

service activities of the company. The task of this organization is to communicate with

make the customers to provide them a very much user interface to get their needs. The

project allows the administrator to take easy reports and the sales and service details of

the company are maintained very well and easy at any time. The main advantage of the

system is to make available everything on the just clicking way.

The numbers of products are maintained to satisfy timely. The details are also

made available even for the customer to take advantage over explain about the products

to the enquiring persons. So when the Customers entered they are very much satisfied for

their Time saving activity in the fast moving world.


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INTRODUCTION

1.1About the Project

Mobile Sales & Service System is used to store the details of the purchase and

sales and their orders. The quotation details can be created here to make the users easily

verify the details of the task.

The project is suitable for all types of users because its interface is natural and it

can be helpful for those people that have not got great skills in interacting with a

computer. Here we maintain the details of the employee work allotment for furtherreference.

Most wearable computers today derive their interfaces from concepts in desktop

computing such as keyboards, pointing devices, and graphical user interfaces. If wearable

computers are expected to become as natural as clothing, we must re-examine the

interface with different standards of usability.

The reports on the modules can be derived for the users to take a hard copy with

them. The project minimizes the problem of forgetting important appointments and also

gives perfect scheduling.


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1.2Need for the System

The system is a manual one, which consumes lot of time as well as manpower.

In order to elicit the requirements of the system and to identify the elements, inputs,

outputs and the procedures. The system had to be examined and analyzed in detail. This

constituted the system study. Records, slips, procedures, rules, etc. were examined

thoroughly. The system was studied involving a complete co-operation from the

employees who run the system at present.

The system is to manage all the works like billing, service application acceptance etc.

The updation of the system is needed to do the following process.

Maintain the Customer information

Maintains Sales details

Maintains Order details

Maintains Service Details


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1.3 SYSTEM REQUIREMENTS

1.3.1. Hardware Requirements:

Micro Processor used : Pentium IV

Clock Speed : 3.0 Ghz.

Hard Disk Drive : 160 GB

Display Drive : 17 Samsung Color Monitor

Keyboard : Multimedia Keyboard

Mouse : Logitech Mouse (optical)

RAM : 1 GB

DVD Writer : Samsung 52x

1.3.2 Software Requirements:

Operating System : Windows XP

Front end used : Visual Basic

Back end used : MS-Access


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1.4. FRONT END & BACK END:

VISUAL BASIC

Visual Basic 6.0 is a window based programming language. The first version ofVB was released in the year 1991, by Microsoft. VB like any other windows based

language provide items like check boxes, command buttons etc. Visual Basic programs

used commands that are similar to Basic Programming Language.

MULTIPLE DOCUMENT INTERFACE (MDI)

MDI is used to opening multiple windows at the same time. All documents

windows are contained in the parent window which provides a workspace in

application can have only MDI form at runtime.

ACTIVE X DATA OBJECTS (ADO)

ADO is an application level interface used to access the data from a variety of

data sources. As the successor to DAO and RDO, ADO presents a single, simplified

interface for the developer

.The above statements shows the options and advantages of visual basic as the

programming language uses the graphical user interface environment. All the controls

are interacted with the form and the user can easily observe the project for using it.

The stock maintenance system involves the calculative part of the quantity to be

purchased and the current asset value on the hand as stock are relatively very much ideal

and visibility for the users of the system when these are created in visual basic.


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BACK END:

ABOUT MS ACCESS

The Back end that has been used in this project is MS access . This is the Back

end database engine for Visual Basic. The idea behind this is easy to maintain the table.

It is also possible to write queries, Import or Export of table from one database to another

database. It also provides security to data in the database in a way that data can be stored

in an encrypted form.

MS Access is a very powerful RDBMS available in the computing

environment. It comprises of all the features from basic data storage to high level

data representation techniques in the form of reports. It also comprises of VB

module programming, which allows embedding VB functions into MS Access.

Database

A database is similar to a data file in that it is a storage place for data. Like a data

file, a database does not present information directly to a user; the user runs an

application that accesses data from the database and presents it to the user in an

understandable format.

Relational Database

Although there are different ways to organize data in a database, relational

databases are one of the most effective. Relational database systems are an application of

mathematical set theory to the problem of effectively organizing data. In a relational

database, data is collected into tables (called relations in relational theory).

The backend is created using MS-Access because it is user friendly and the

database management system is very much familiar by all the users and the capability to

create the tables as much we need and the data retrieval id very good.


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CHAPTER II

2. SYSTEM ANALYSIS

2.1 Existing SystemThe existing system in the company was maintaining the activities manually. The

informations provided by the existing system require a lot of manual interventions at the

time of preparing the system. All the activities are very much difficult to prepare reports

for monthly and yearly. Hence there is a need for updating of the system.

Drawback of the Existing System

The main drawback of the existing system is manual and involves lots of inputs.

Only manual checking is done

Searching is very much difficult for the customers

Timely reports are not generated perfectly

Unavailability of quick references

Stocks are very difficult to maintain


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2.2 PROPOSED SYSTEM

The purposed of the proposed system is to computerize the exiting system. The

proposed system is to be developed using Visual Basic 6.0. This new software

application has been developed with menu driven approach.

The proposed system package is menu driven. After keying in the input, it is just a

question of few minutes, after which we get a report, which overcomes all the

inconvenience and trouble of the present system.

ADVANTAGE OF THE PROPOSED SYSTEM:

The report can be prepared in very short notices and in every short time. It reports

generated is accurate. It is short for the top management to know the result in a glance.

Eliminating of redundancy of data.

Faster date retrieval.

Built-in security features.

Unique paper work.

Centralized database. User friendly.

Easy to access.


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3.2 DATABASE DESIGN

The most important aspect of building candidate system is database design.

Instead of each program managing its own data, the authorized persons share data acrossapplications with database software managing the data as an entity.

It is a logical development, in the methods used by the computers to access and

manipulates data stored in the various parts of computer system.

It is information from several files is coordinated accessed and operated upon as

though it is a single file. A database is collections of inter related data stored with a

minimum redundancy to serve many users quickly and efficiently. The objective is to

make information access easy and quick, inexpensive and flexible to the User.

Input design encompasses internal and external program interfaces and the design of

user interfaces. Internal and external interface designs are guided by information

obtained from the analysis model. This defines user tasks and actions either anelaborative or object oriented approach. Design issues such as response time, comma

structure, error handling and help facilities are considered and a design model for the

system is defined. A set of generic design guidelines governs general interaction,

information display and data entry.

Various input forms are designed categorically according to the need of the

particular division, which fulfills the every need the user. It allows the user to access the

source of information according to the security level assigned to the user.


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Tables

Table Name: Product Master

SNO Field Name Data type Size Description1 Prodcode

(Primary Key)

Text 20 Product Code

2 ProdName Text 25 Product Name

3 Model Text 25 Model name

4 Price Number 5 Price of the product

Table Name: Order

SNO Field Name Data type Size Description

1 OrderNo

(Primary Key)

Text 20 Order Number

2 Date Text 25 Date of Order

3 Name Text 25 Name

4 Address Text 25 Address5 ProdCode

(Foreign Key)


6 Prodname Text 25 Product Name

7 Model Text 25 Model Description

8 Qty Number 20 Quantity

9 Rate Number 20 Amount

10 Total Number 20 Total Amount


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Table Name: Purchase


1 Invoice No

(Primary Key)

Text 20 Invoice Number

2 Date Text 25 Date of Sales

3 OrderNo

(Foreign Key)


4 Supplier Code Text 25 Supplier Code

5 Sname Text 25 Supplier Name

6 ProdCode

(Foreign Key)






11 Amount Number 10 Sub Total Amount

Table Name: Payment


1 BillNo Text 20 Bill Number

2 Date Text 20 Date

3 Name Text 25 Name

4 Address Text 25 Address

5 Amount Number 10 Bill amount

6 Advance Number 10 Advance amount

7 Balance Number 10 Balance Amount


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Table Name: Sales


1 Billno

(Primary Key)

Text 20 Bill Number

2 Date Text 25 Date of Sales

3 OrderNo

(Foreign Key)


4 Name Text 25 Name

5 Address Text 25 Address

6 ProdCode

(Foreign Key)






11 Subtotal Number 10 Sub Total Amount

12 Discount Number 10 Discount Amount

13 GrandTot Number 10 Payable Amount

Table Name: Stock


1 Prodcode Text 20 Product Code


3 Model Text 20 Model name

4 OpenSt Number 10 Opening Stock

5 Purchase Number 10 Purchase Qty

6 Sales Number 10 Sales Qty

7 Closest Number 10 Closing Qty


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Table Name: Service


1 ServiceID Text 20 Service ID

2 Date Text 20 Date

3 Bill No Text 25 Bill Number

4 Date Text 25 Name

5 ProdCode Text 25 Product Code



8 Problem Text 50 Nature of Problem

9 Amount Number 10 Service Amount


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3.3 Input Design

Input design encompasses internal and external program interfaces and the design

of user interfaces. Internal and external interface designs are guided by information

obtained from the analysis model. This defines user tasks and actions either an

elaborative or object oriented approach. Design issues such as response time, comma

structure, error handling and help facilities are considered and a design model for the

system is defined. A set of generic design guidelines governs general interaction,

information display and data entry.

Various input forms are designed categorically according to the need of the

particular division, which fulfills the every need the user. It allows the user to access the

source of information according to the security level assigned to the user.


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3.4 Module Design

The System Consists of Three modules

1. Order

2. Sales & Service

3. Stock

Module 1: Purchase

This module deals with the details of purchase details such as ordering for the

purpose of purchasing from the supplier for the needed mobiles, then the Purchase billingand the items purchased and the value of the purchased items.

Module 2: Sales & Service

This module is used to maintain sales orders received and the billing activities

takes place here. All the details of the order received for sales have been maintained to

takes how many items sold and the values of the sales are calculated here. The service

system is created to make service facilities for the customer.

Module 3: Stock

This module is for maintaining stock details and for the purpose to find the value

of current stock. The stock details are maintained till date to easy retrievement of the

closing stock of the Current Item.


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3.5 OUTPUT DESIGN

The output design minimizes the intellectual distance between the software and

the problem, as it exists in the real world. The design is uniform and integrated. The

output generated is clear and optimized. Output design builds coherent, well planned

representation of programs that concentrate on the inter relationships of parts at the

higher level and logical operations involved at the lower level. Outputs are created

precisely to match the expectations of the users and presented with careful verifications

with the works manager. Every report are outputs presented with all attribute regarding

every subject in a single report


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CHAPTER IV

SYSTEM TESTING AND IMPLEMENTATION

4.1 SYSTEM TESTING

Testing is an important stage in system development life cycle (SDLC). Software

testing is a critical element of software quality assurance and represents the ultimate view of

specification, design and coding.

Testing begins at the module level and work towards the integration of entire

computer based system. Nothing is complete without testing, as it is a vital success of the

system.

There are three ways to test a program

1. For Correctness

2. For Implementation efficiency

3. For Computational Complexity

Tests for correctness are supposed to verify that a program does exactly what it was

supposed to do. This is much more difficult than it may first appear, especially for large

programs.

Tests for implementation efficiency attempt to find ways to make a correct program

run faster and use less storage. It is a code refining process, which re-examines the

implementation phase of algorithm development.

Tests for computational complexity amount to an exceptional analysis of complexity

of an algorithm or an experimental comparison of two or more algorithms, which solve the

same problem.


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4.1.1 TESTING METHODOLOGIES

The entire testing process can be divided into 3 phases

Unit Testing

Integrated Testing

Final/System Testing

Unit Testing

As the system was totally GUI based, the following were tested in this phase.

1. Tab Order

2. Field Length

3. Menu Testing

4. Front end Validation

Unit testing focuses verification efforts on the smallest unit of software design

module. To check whether each module in the software works properly so that it gives

desired output to the given input.

The code modules were tested individually one after another. The following were

tested in each module.1. Loop testing

2. Boundary value analysis

Control paths are tested to ensure the information properly flows into and out of the

program unit. Boundary conditions are tested to ensure that modules operate at boundaries

and restrict processing when gone beyond the set boundary. All independent paths through

the control structure ensure that the statements have been executed at least once. Finally the

error handling paths were tested.

In our testing the test data was given to each and every module in all respects and got

the desired results. Each module was found to be working properly.


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Integration Testing

Integration testing is a systematic technique for constructing the program structure,

while conducting test to discover error associated with interfacing. Integration test has been

carried out successfully. The different modules of the system were combined together to

form an integrated working application.

Final/System Testing

This is the final step of testing. In this testing the entire system was tested as a whole.

This form of testing is known as Black Box Testing. Black Box testing enables us to derive

sets of input condition that will fully exercise all functional requirements for a program.

Black Box testing has been successfully carried out with test data and got the desired output.

Test Data

Test data should be prepared carefully since data only determines the efficiency and

accuracy. All the above testing was successfully carried out for the month of March 2003.

The output given by the system agreed with test data output created manually. Crosschecking

has also been done with the existing System for accuracy.


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4.2 SYSTEM IMPLEMENTATION

4.2.1 IMPLEMENTATION PROCEDURES

Implementation is one of the most important tasks in the project. Implementation is

the phase, in which one has to be cautious, because all efforts undertaken during the project

will be fruitful only if the software is properly implemented according to plans made.

Implementation phase is less creative than system design. It is primarily concerned

with User-Training, Site preparation and File Conversion. Depending upon the nature of the

system, extensive user training may be required. Implementation is used here to mean the

process of converting a new revised system design into an operational one. Conversion is one

aspect of implementation.

Conversion

Conversion means changing from one system to another. The objective is to put the

tested system into operation while holding costs, risks and personal irritation to a minimum

involves the following.

Creating Computer-Compatible Files

Training the operating staff

Installing terminals an Hardware4.2.2 Operational Documentation

Once the implementation plan is described, it is essential that the user of the system is

made familiar and comfortable with the environment. Operational document includes the

information of how the program has to be operated.

Depending on the nature of the system, extensive user training may be required.

The initial parameters of the MIS should be modified as the result of programming

efforts; programming provides a reality test for the assumption made by the analyst.

The system testing checks the readiness and accuracy of the system to access

update and retrieve data from new files. Once the programs available, the test data are

read into the computer and process.


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CHAPTER V

CONCLUSION

The system development titled Mobile Sales & Service System was designed keeping

in mind to provide maximum flexibility to the users. The system was tested with sample

data and the performance of the system was found to be efficient. All efforts have been

made to understand the system wholly and understand all the details.

Almost all aspects regarding simple billing have been take into consideration

when developing the system and are included into the system. Much of the process is

automated and hence the chance of human errors is limited.

However, there have been certain limitations the system would be better off

without. More security could have been given to the system by the way authorization and

further features could have been added to make the system more robust.

Due to time constraint are being a notice to the subject of Mobile Sales and

Service System. Through the system has been built with ease of use in mind, a little

training would make the user understand the system much better. The systems

performance is little slow due to the use Data Environment feature in programming.

Closing other programs and freeing up the memory would improve the systems

performance. The system requires users to take regular backups using backup feature in

Access. Also further internal documentation could be added to make the maintenance

quick and easy.


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BIBILIOGRAPHY

1. ED KOOP, ANNE PRINCE, JOEL MURACH, Murachs Visual Basic 6,BPB publications 1999 Edition

2. BRIAN SILER, Special Edition: Using Visual Basic 6,

Prentice-Hall of India 1998 Edition

3. ELIAS. M. AWAD, System Analysis and Design,

Galgotia Publications 1997 Edition.

4. ROGER S.PRESSMAN Software Engineering Tata McGraw-Hill

Publishing company, Vth Edition, 2001.

5. D M DHAMDHERE. Systems Programming and Operating

Systems. Tata McGraw-Hill Publishing Company, II Edition, 2002.


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Appendix

Systems Flow Chart

Start

User Login

IfPassword

correct

Relogin

Yes

No

Main Menu

Orders Purchase

Sales

PaymentService

Stock


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E-R Diagram

Customer

Order

O No

Date

Stock

Checks

RequestPurchase

Sales

Provides

GeneratesPayment

Date

Bill No

Date

Amount

Inv No

Date

Amount

Date

ItemCode

No ofItems

Bill NoAmount


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CustomerOrder

GENERALREPORTSREQUEST

RESPONSE

LEVEL 0

DATA FLOW DIAGRAM

Customer Processing

Order

Sales

LEVEL 1

Ordering

Processing

ProcessingCompleting


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CustomerProduct

Stock

Product

ProductDetails

Order

Service

Service

SalesPayment

Sales

Payment

Payreceipt

Service

Order

OrderDetails

Invoice

Stock

Stock Details

Stock Update

Bill Verification

Paying Details

Paying Details

Order Processing

Product Delivery

LEVEL 2


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Reports


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Sample Codings

Dim strq As String

Dim cn As New ADODB.Connection

Dim rs As New ADODB.RecordsetDim rs2 As New ADODB.Recordset

Dim rs1 As New ADODB.Recordset

Dim msg As String

Private Sub Command1_Click()

Set rs = New ADODB.Recordset

rs.Open "select * from SalesInvoice", cn, adOpenDynamic, adLockOptimistic

Text1.Text = ""

Text2.Text = ""

Text3.Text = ""Text4.Text = ""

Text5.Text = Format(Date, "dd/MM/yyyy")Text6.Text = ""

Text7.Text = ""

Text8.Text = ""


Text1.SetFocus

rs.MoveLast

End Sub


Set rs = New ADODB.Recordset

rs.Open "select * from SalesInvoice", cn, adOpenDynamic, adLockOptimisticIf Text1.Text = "" And Text2.Text = "" Then

msg = MsgBox("cannot insert NULL values", vbInformation, "NOTE")

Elsemsg = MsgBox("Do you want to save ?", vbYesNo + vbQuestion, "OPTION")

If msg = vbYes Then

cn.Execute ("insert into SalesInvoice values('" & Trim(Text1.Text) & "','" &

Trim(Text2.Text) & "','" & Trim(Text3.Text) & "','" & Trim(Text4.Text) & "','" &Trim(Text5.Text) & "','" & Trim(Text6.Text) & "','" & Trim(Text7.Text) & "','" &

Trim(Text8.Text) & "','" & Trim(Text9.Text) & "','" & Trim(Text10.Text) & "')")

Call updatestk

msg = MsgBox("Records are saved", vbExclamation, "SAVE")End If

End If


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rs.Close

Set rs = New ADODB.Recordsetrs.Open "select*from SalesInvoice", cn, adOpenDynamic, adLockOptimistic

End Sub


Set rs = New ADODB.Recordsetrs.Open "select * from SalesInvoice", cn, adOpenDynemic, adLockOptimistic

msg = MsgBox("Are yuo sure to delete the record?", vbYesNo + vbQuestion,

"OPTION")If msg = vbYes Then

cn.Execute ("delete from SalesInvoice where InvoiceNo='" & Trim(Text1.Text) & "'")

Text1.Text = ""

Text2.Text = ""



Text7.Text = ""

Text8.Text = ""


msg = MsgBox("Records are deleted", vbExclamation, "DELETE")

End Ifrs.Close

Setrs = New ADODB.Recordset

rs.Open "select*from SalesInvoice", cn, adOpenDynamic, adLockOptimistic

End Sub


Me.Hide

MDIForm1.Show

End Sub


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rs.MoveFirst

Text1.Text = rs(0)

Text2.Text = rs(1)Text3.Text = rs(2)

Text4.Text = rs(3)


Text7.Text = rs(6)


Text10.Text = rs(9)

End Sub


rs.MovePrevious

If rs.BOF = False Then

Text1.Text = rs(0)


Text4.Text = rs(3)


Text7.Text = rs(6)

Text8.Text = rs(7)


Else

MsgBox "This is your first record"rs.MoveNext

End If

End Sub


rs.MoveNext

If rs.EOF = False Then

Text1.Text = rs(0)


Text4.Text = rs(3)


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Text5.Text = rs(4)


Text8.Text = rs(7)

Text9.Text = rs(8)

Text10.Text = rs(9)Else

MsgBox "This is your last record"

rs.MovePreviousEnd If

End Sub


rs.MoveLast



Text5.Text = rs(4)

Text6.Text = rs(5)


Text9.Text = rs(8)

Text10.Text = rs(9)

End Sub

Private Sub Form_Load()

cn.Open "provider=Microsoft.Jet.OLEDB.4.0;data source=" & App.Path & "\data.mdb;"

strq = "select * from SalesInvoice"rs.Open strq, cn, adOpenDynamic, adLockOptimistic

Text1.Text = ""


Text4.Text = ""

Text5.Text = Format(Date, "dd/MM/yyyy")


Text8.Text = ""

Text9.Text = ""

Text10.Text = ""rs.MoveLast


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End Sub

Private Sub Form_Unload(Cancel As Integer)

Me.Hide

Unload Mecn.Close

End Sub

Private Sub Text13_Change()

Text10.Text = Val(Text13.Text) - Val(Text14.Text)

End Sub

Private Sub Text14_Change()

Text10.Text = Val(Text13.Text) - Val(Text14.Text)

End Sub

Private Sub Text2_KeyPress(KeyAscii As Integer)

If KeyAscii = 13 ThenSet rs3 = New ADODB.Recordset

rs3.Open "select * from Customer", cn, adOpenDynamic, adLockOptimistic

rs3.MoveFirst

Do While Not rs3.EOFIf Trim(Text2.Text) = Trim(rs3.Fields(0)) Then

Text3.Text = rs3(1)

Exit SubEnd If

rs3.MoveNext

Looprs3.Close

End If

End Sub

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