ACKNOWLEDGEMENT Nothing concrete can be achieved without an optimal combination of inspiration and perspiration. No work can be accomplished without taking the guidance of the experts. It is only the views and advice from ingenious intellectual that help in the transformation of a product into a quality product.
We owe my sincere gratitude to Mr. Amit Yadav, our honorable project guide. Last but not the least, no acknowledgement will be complete without mentioning our parents. They have also supported us throughout the development project.
INDEX 1. Introduction 2. Software Requirement Specification 3. Software / Hardware Requirement 4. Data Flow Diagram 5. E-R Diagram 6. Coding 7. Execution 8. Testing & Debugging 9. Appendix 10. Conclusion 11. Implementation 12. Maintenance 13. Bibliography
INTRODUCTION Management of any departmental store is a very difficult task. Departmental store is an attempt to computerize the day to day activities of store. It is designed to help the store to perform daily duties and transaction with ease. Members’ satisfaction is the foremost priority of the system. After a detailed study of the existing system, it is evident that it does not fulfil the objectives of the organization. It is require to have a computerized information system with the help of which all tasks can be processed more accurately & quickly. To achieve this it is necessary to design & develop a new system which will have benefits, over existing system The generation of reports in the proposed system will take minimum time & they are electronically prepared. As a result, it is highly accurate. It will be easy for the users of the system to compile information at a very high pace, measure the performance over a period & draw conclusion from the information retrieved by using the proposed system. As new information are being added to & released from other respective courses every year. It will be highly used friendly to track & maintaining presentation of all the students. The system is such that is stand up to the user expectation like easy and faster retrieval f information. The system is very easy to learn & understand. A native user will be able to use the system effectively. Information being prepare of electronically can be said as accurate which is first and foremost condition for taking a crucial decision by the management. Work carried out by a staff at various stages will be loss time consuming. Besides this, the proposed system will have the following capabilities.
SOFTWARE REQUIREMENT SPECIFICATION System Analysis System Analysis refers to the process of examining a situation with the intent of improving it through better process and methods. System analysis is, therefore, the process of gathering and interpreting facts, diagnosing problem and using the information to recommend information in system or in other words, it means a detailed explanation or description. Before computerizing a system under consideration, it has to be analyzed. We need to study how it function currently, what are problems and what are requirements that proposed should meet.
The main components of making software are : 1. System and software requirements analysis. 2. Design and implementation of software. 3. Ensuring verifying and maintaining software integrity. Information Gathering The team paid a visit at the site to have a smell of existing system. All relevant personal were consulted and no information was over-looked. The strategy consisted of: 1. Identify information sources. 2. Revolving a method of obtaining a information from identified source. 3. Using an information from module of organization. Information Sources The main sources of information were: 1. Users of the system 2. Presentations an documents using organization 3. Prospectus, manuals and the rulebooks, which specify how various activities are carried out in the organization. 4. Computer Presentation of existing system.
UNDERSTANDING THE EXISTING SYSTEM Existing system here is manual i.e. all the transaction or the information is recorded in the registers and as simple text files on the computers. The person needy of particular information has to go through the registers and the text files and then prepare the information needed by him manually. Besides this, there are many other drawbacks with the existing system which are listed as under :
Flexibility in generation of information : The generation of information in the
proposed system takes long time and they are manually prepared.
Long time taken to draw conclusions : As individual files are maintained for
each information, it is very difficult to compile information, measure performance over a period and draw conclusions from the information stored in two different files.
User Friendliness : The system is not easy to learn and understand. A native
user cannot use the system effectively.
User Satisfaction : The system is such that it does not stand up to the user
expectations like easy and faster retrieval of information.
Response Time : Being manually driven, the response of all the operations is
very slow.
Error Handling : In case there arise some error in recovering or computation of
information, it is very cumbersome to trace it.
Safety and Robustness : The informative media is accessible by everyone. As
information being the most crucial for the organization, there are no safety measures for the security of information. Furthermore, information is lying in the organization in an unorganized manner and does not resemble the real world model.
Lack of Accuracy : Information being prepared manually cannot be said as
accurate which is the first and the foremost condition for taking a crucial decision by the management.
More Time Consuming : Work carried out by the staff at various stages is
highly time consuming.
Error Prone Resources : Resources being used by the informative media were
provided by the organization long ago. Due to wear and tear with the resources, they are highly error prone. PROPOSED SYSTEM After a detailed study of the existing system, it is evident that is does not fulfill the objectives of the organization. To make the objective possible for the organization, it is required to have a computerized information system with the help of which all tasks can be processed more accurately and quickly. To achieve this, it is necessary to design and develop a new system which will have the following benefits over existing system :
Flexibility in generation of information : The generation of reports in the
proposed system will take minimal time and they are electronically prepared. As a result, it is highly accurate.
Less time is taken to draw conclusions : It will be easy for the user(s) of the
system to compile information at a very high pace, measure the performance over a period and draw conclusion form the information retrieved by using the proposed system.
Ease in maintaining information : As new information are being added to and
released from their respective courses every year, it will be highly user friendly to track and maintain the presentation of all the students.
User satisfaction : The system is much that is stands up to the user expectations
like easy and faster retrieval of information.
Safety and Robustness : The system will be accessible by only the authorized
users. As information being the most crucial for the organization, there are safety measures for the security of information. Furthermore, data is stored by the system in an organized manner and resembles the real world model.
Highly accurate : Information being prepared electronically, can be said as
accurate which is the first and the foremost condition for taking a crucial decision by the management.
Less time consuming : Work carried out by the staff at various stages will be less
time consuming.
Error free resources : Resources being used by the system will be compatible
with the latest technologies available in the market. As proposed system uses highly technically compatible resources, there will be very-very less wear and tear. So the resources are error free. Besides this, the proposed system will have the following capabilities :
Multiple viewer facility : Proposed system is being designed in such a way that
many users can have a view with the system simultaneously. It makes effective and perfect utilization of man power and resources.
User-friendly interfacing : Since main interaction of the system will be with the
user, the user interface will be interactive and meaningful.
Formatted output : The information generated by the proposed system us highly
formatted and help the users to reach the conclusion quickly.
Better organization of information : Proposed system has the capability to
express the information in a better and more meaningful way. Proposed system uses modern techniques for storage and retrieval of information.
Accurate round the clock : Proposed system is capable of giving accurate
information round the clock.
Exception Handling : To ensure that the system does not halt in case undesired
situation or events, the
system capable enough to handle these unpleasing
circumstances. Proposed system will be capable of taking
necessary decisions so
that there is no loss information.
Minimum efforts : Proposed system ensures that very less efforts will be
required to start the presentation.
Capable of adapting to the changes in the outside environment : The system
will have scope to foresee modification and enhancement i.e. it is able to cope up with the business changes in-order to be compatible with the latest changes in the industry. Any enhancement to the information can be done without much effort and is available instantly.
SYSTEM REQUIREMENTS HARDWARE REQUIREMENTS 1. 40 GB Hard Disk 2. 256 MB Ram 3. Floppy Drive 1.44MB 4. Monitor 5. Keyboard 6. Processor PIV SOFTWARE REQUIREMENTS 1. Visual Basic 6.0 2. Windows 2000 3. MS Access
DATA FLOW DIAGRAM (DFD) A DFD is a graphical representation that depicts information flow and the transforms that are applied as data move from input to output. The basic form of a DFD is also known as a data flow graph or a bubble chart. DFD may be used to represent a system or software at any level of abstraction. DFDs can be partitioned into levels that represent increasing information flow and functional detail. A level 0 DFD, also called a fundamental system model or a context model, represents the entire software element or a single bubble with input and output data indicated by incoming and outgoing arrows, respectively. A level 1 DFD may contain five or six bubbles with interconnection arrows. Each of the processes represented at level 1 is a sub function of the overall system depicted in the context model. DFD Notations It represents a process or transform that is applied to data. It represents data store-stored information that is used by software. It represents one or more data items. It represents external entities.
DFD
CUSTOMER
Customer Details
SS_PURCHASE SS_SALES
Purhase Details Updated purchase Details
Sales Details for Bill Generation
Stock Details
SS_STOCK
RELIANCE FRESH
CUSTOMER
Stock Details
BILL Generating Bill Customer Details Updating Spare Details
Customer Details Item Details
SS_CUSTOMER
SS_ITEM
STRUCTURE TABLE
RELIANCE FRESH
CUSTOMER
ITEM
PURCHASE
SALES
SUPPLIER
BILL
DESIGN ERD (ENTITY RELATIONSHIP DIAGRAM)
ERD are used to represent the object/relationship pair. It was originally purposed for the design of relational database system. A set of primary components is identified for the ERD: data object, attributes, relationship and various type indicators. The primary purpose of ERD is to represent data object and their relationships. Data objects are real world entities represented by a labeled rectangle. A labeled diamond represents relationships. Connections between data objects and relationships are established using a variety of special symbols that indicates cardinality and modality.
ERD Notations
EXIT
ENTITY
W
WEAK ENTITY
RELATIONSHIP
IDENTIFYING RELATIONSHIP
ATTRIBUTE
KEY ATTRIBUTE
MULTIVALUED
COMPOSITE ATTRIBUTE
DATA FLOW
Entity Relationship Diagrams are a major data modeling tool and will help organize the data in your project into entities and define the relationships between the entities. This process has proved to enable the analyst to produce a good database structure so that the data can be stored and retrieved in a most efficient manner.
RELIANCE FRESH id
Ha s
Has
Customer
Name
Supplier
Address
id Phone Name
Phone By
Address
Item
Has
Sales
Name
id
Discount
Bill No
Price
Date Bill Amount
id
Stock
Select
Qoh
Customer Id
CODING Private Sub cmdadd_Click() Text1.Enabled = True Text2.Enabled = True Text3.Enabled = True Text4.Enabled = True Command1.Enabled = True smddelete.Enabled = True Cmdrefresh.Enabled = True cmdedit.Enabled = True Adodc1.Recordset.AddNew End Sub Private Sub cmdclose_Click() Mainform.Show CUSTOMERINFORMATION.Hide Text1.Enabled = False Text2.Enabled = False Text3.Enabled = False Text4.Enabled = False cmdadd.Enabled = True Command1.Enabled = True smddelete.Enabled = True Cmdrefresh.Enabled = True cmdedit.Enabled = True End Sub Private Sub cmdedit_Click() Dim checksave As Integer checksave = 1 For Each Control In CUSTOMERINFORMATION If TypeOf Control Is TextBox Then If Control.Enabled = False Then MsgBox "Please Fill All The Required Data ", vbCritical, "Dear User" checksave = 0 Exit For End If End If Next If checksave = 1 Then Adodc1.Recordset.Update MsgBox "Record Save In Database", vbOKOnly + vbInformation, "Dear User" End If cmdedit.Enabled = False
Adodc1.Recordset.MoveFirst End Sub Private Sub Cmdrefresh_Click() Dim UPDATERECORD As Integer Dim checkdata As Integer checkdata = 1 'UPDATE THE DATA IN DATABASE '***************************************************** 'check blank text box in form For Each Control In CUSTOMERINFORMATION If TypeOf Control Is TextBox Then If Control.Enabled = False Then MsgBox "Data is Not Present ", vbCritical, "Dear User" Cmdrefresh.Enabled = False checkdata = 0 Exit For End If End If Next If checkdata = 0 Then MsgBox "You Don't Have Permission To Update This Record ", vbCritical, "Dear User" Else MsgBox "You Have Permission To Update This Record ", vbInformation, "Dear User" UPDATERECORD = MsgBox("Are You Want To Update This Record", vbOKCancel, "Dear User") If UPDATERECORD = 1 Then Text1.Enabled = True Text2.Enabled = True Text3.Enabled = True Text4.Enabled = True cmdedit.Enabled = False smddelete.Enabled = False cmdadd.Enabled = False Cmdrefresh.Enabled = False Command1.Enabled = True End If End If End Sub Private Sub Command1_Click() Dim instatus As Integer instatus = 1 For Each Control In CUSTOMERINFORMATION
If TypeOf Control Is TextBox Then If Control.Text = "" Then MsgBox "Please Fill All The Required Data ", vbCritical, "Dear User" instatus = 0 Exit For End If End If Next If instatus = 1 Then Adodc1.Recordset.Update MsgBox "Record Save In The Database", vbOKOnly + vbInformation, "Dear User" cmdedit.Enabled = True Command1.Enabled = False smddelete.Enabled = True cmdadd.Enabled = True Cmdrefresh.Enabled = True End If Adodc1.Recordset.MoveFirst End Sub Private Sub smddelete_Click() Dim instatus As Integer instatus = 1 confirmdel = MsgBox("Are You Want To Delete This Record", vbOKCancel, "Dear User") For Each Control In CUSTOMERINFORMATION If TypeOf Control Is TextBox Then If Control.Enabled = False Then MsgBox "Textboxes Are Disabled ", vbCritical, "Dear User" smddelete.Enabled = False instatus = 0 Exit For End If End If Next If instatus = 1 Then Adodc1.Recordset.Delete MsgBox "Record Deleted In Database", vbOKOnly + vbInformation, "Dear User" End If Adodc1.Recordset.MoveFirst End Sub
Private Sub cmdadd_Click() txtitemcode.Enabled = True txtitemname.Enabled = True Command1.Enabled = True Adodc1.Recordset.AddNew End Sub Private Sub cmdclose_Click() Mainform.Show iteminformation.Hide txtitemcode.Enabled = False txtitemname.Enabled = False cmdedit.Enabled = True Command1.Enabled = True smddelete.Enabled = True cmdadd.Enabled = True Cmdrefresh(0).Enabled = True End Sub Private Sub cmdedit_Click() Dim UPDATERECORD As Integer Dim checkdata As Integer checkdata = 1 'UPDATE THE DATA IN DATABASE '***************************************************** 'check blank text box in form For Each Control In iteminformation If TypeOf Control Is TextBox Then If Control.Enabled = False Then MsgBox "Data is Not Present ", vbCritical, "Dear User" cmdedit.Enabled = False checkdata = 0 Exit For End If End If Next If checkdata = 0 Then MsgBox "You Don't Have Permission To Update This Record ", vbCritical, "Dear User" Else MsgBox "You Have Permission To Update This Record ", vbInformation, "Dear User" UPDATERECORD = MsgBox("Are You Want To Update This Record", vbOKCancel, "Dear User") If UPDATERECORD = 1 Then
txtitemcode.Enabled = True txtitemname.Enabled = True cmdedit.Enabled = False Command1.Enabled = False smddelete.Enabled = False cmdadd.Enabled = False Cmdrefresh(0).Enabled = True End If End If End Sub Private Sub Cmdrefresh_Click(Index As Integer) Dim instatus As Integer instatus = 1 For Each Control In iteminformation If TypeOf Control Is TextBox Then If Control.Text = "" Then MsgBox "Please Fill All The Required Data ", vbCritical, "Dear User" instatus = 0 Exit For End If End If Next If instatus = 1 Then Adodc1.Recordset.Update MsgBox "Record Save In The Database", vbOKOnly + vbInformation, "Dear User" cmdedit.Enabled = True Command1.Enabled = True smddelete.Enabled = True cmdadd.Enabled = True Cmdrefresh(0).Enabled = False End If Adodc1.Recordset.MoveFirst End Sub Private Sub Command1_Click() Dim checksave As Integer checksave = 1 For Each Control In iteminformation If TypeOf Control Is TextBox Then If Control.Enabled = False Then MsgBox "Please Fill All The Required Data ", vbCritical, "Dear User" checksave = 0
Exit For End If End If Next If checksave = 1 Then Adodc1.Recordset.Save MsgBox "Record Save In Database", vbOKOnly + vbInformation, "Dear User" End If Command1.Enabled = False Adodc1.Recordset.MoveFirst End Sub Private Sub smddelete_Click() Dim instatus As Integer instatus = 1 confirmdel = MsgBox("Are You Want To Delete This Record", vbOKCancel, "Dear User") For Each Control In iteminformation If TypeOf Control Is TextBox Then If Control.Enabled = False Then MsgBox "Textboxes Are Disabled ", vbCritical, "Dear User" smddelete.Enabled = False instatus = 0 Exit For End If End If Next If instatus = 1 Then Adodc1.Recordset.Delete MsgBox "Record Deleted In Database", vbOKOnly + vbInformation, "Dear User" End If Adodc1.Recordset.MoveFirst End Sub
Private Sub CMDOK_Click() If (txtusername.Text = Adodc1.Recordset.Fields(0)) And (txtpassword.Text = Adodc1.Recordset.Fields(1)) Then MDIForm1.Show Else nm = MsgBox("WRONG USER NAME OR PASSWORD", vbCritical, "DEAR CUSTOMER") End If End Sub Private Sub Command2_Click() End End Sub
Private Sub clickAdministration_Click() ADMINISTRATION.Show End Sub Private Sub clickCustomertotal_Click() CUSTOMERINFORMATION.Show End Sub Private Sub clickexit_Click() End End Sub Private Sub ClickItemInformation_Click() iteminformation.Show End Sub Private Sub clickPurchaseForm_Click() PURCHASEFORM.Show End Sub Private Sub clickPurchaseInformation_Click() PURCHASEINFORMATION.Show End Sub Private Sub clickraisebill_Click() PRINTBILL.Show End Sub Private Sub clicksalebill_Click() End Sub Private Sub clicksaledetail_Click() SALEDETAIL.Show End Sub Private Sub clicksaleform_Click() SALEFORM.Show End Sub Private Sub clickSupplierInformation_Click() SUPPLIERINFORMATION.Show End Sub
Private Sub Timer3_Timer() Static i As Integer i=i+1 If i >= 101 Then Picture1.Visible = False Timer3.Enabled = False MDIForm1.Hide Mainform.Show Else ProgressBar1.Value = i End If End Sub
Private Sub Command1_Click() PRINTBILL.Hide End Sub Private Sub Command2_Click() CommonDialog1.ShowPrinter End Sub
Private Sub cmdadd_Click() Text1.Enabled = True Text2.Enabled = True Text3.Enabled = True Text5.Enabled = True Text6.Enabled = True Adodc1.Recordset.AddNew End Sub Private Sub cmdedit_Click() Dim checksave As Integer checksave = 1 For Each Control In PURCHASEFORM If TypeOf Control Is TextBox Then If Control.Enabled = False Then MsgBox "Please Fill All The Required Data ", vbCritical, "Dear User" cmdedit.Enabled = False checksave = 0 Exit For End If End If Next If checksave = 1 Then Adodc1.Recordset.Save MsgBox "Record Save In Database", vbOKOnly + vbInformation, "Dear User" End If Adodc1.Recordset.MoveFirst End Sub Private Sub Cmdrefresh_Click() Mainform.Show PURCHASEFORM.Hide cmdedit.Enabled = True End Sub Private Sub Command1_Click() Adodc1.Recordset.MoveFirst End Sub Private Sub Command2_Click() If (Adodc1.Recordset.BOF = False) Then Adodc1.Recordset.MovePrevious Else MsgBox "Record are Finished ", vbCritical, "Dear User" Adodc1.Recordset.MoveFirst End If
End Sub Private Sub Command3_Click() If (Adodc1.Recordset.EOF = False) Then Adodc1.Recordset.MoveNext Else MsgBox "Record are Finished ", vbCritical, "Dear User" Adodc1.Recordset.MoveFirst End If End Sub Private Sub Command4_Click() Adodc1.Recordset.MoveLast End Sub
Private Sub cmdclose_Click() Mainform.Show PURCHASEINFORMATION.Hide End Sub Private Sub Cmdrefresh_Click() Adodc1.Recordset.MoveFirst End Sub Private Sub smddelete_Click() Adodc1.Recordset.Delete Adodc1.Recordset.MoveFirst End Sub
Dim u As Integer
Private Sub cmdclose_Click() Mainform.Show SALEFORM.Hide End Sub Private Sub Command1_Click() Dim i, j As Integer j=0 i=0 For i = i To 9 If (t1(j) <> "") Then t3(j) = t1(j) * t2(j) j=j+1 Else End If Next End Sub Private Sub Command2_Click() Dim c, total As Integer Dim i As Integer total = 0 c=0 i=0 For i = i To 9 If t3(c) <> "" Then total = total + t3(c) c=c+1 Else End If Next Text8.Text = total End Sub Private Sub Form_Load() Text5.Text = Date Dim a As String Do While (Adodc1.Recordset.EOF = False) a = Adodc1.Recordset.Fields("itemname") List1.AddItem (a)
Adodc1.Recordset.MoveNext Loop End Sub
Private Sub Text19_Change() End Sub Private Sub Text2_LostFocus() Text1.Text = (Text2.Text * Text3.Text) End Sub Private Sub List1_DblClick() If (Text1(u).Index < 9) Then Text1(u) = List1.Text u=u+1 Else hs = MsgBox("NO MORE ARE INSERTED", vbCritical, "DEAR CUSTOMER") End If End Sub Private Sub smddelete_Click() PRINTBILL.txtbdate.Text = Text5.Text PRINTBILL.txtbno.Text = Text6.Text PRINTBILL.txtdis.Text = Text7.Text PRINTBILL.txtbamount.Text = Val(Text8.Text) - (Val(Text8.Text) * (Val(Text7.Text) / 100)) PRINTBILL.txtcname.Text = Text10.Text PRINTBILL.txtcaddress.Text = Text9.Text SALEFORM.Hide PRINTBILL.Show End Sub
Private Sub cmdadd_Click() Text1.Enabled = True Text2.Enabled = True Text3.Enabled = True Text4.Enabled = True cmdedit.Enabled = True Adodc1.Recordset.AddNew End Sub Private Sub cmdclose_Click() Mainform.Show SUPPLIERINFORMATION.Hide Text1.Enabled = False Text2.Enabled = False Text3.Enabled = False Text4.Enabled = False cmdadd.Enabled = True Command1.Enabled = True smddelete.Enabled = True Cmdrefresh.Enabled = True cmdedit.Enabled = True End Sub Private Sub cmdedit_Click() Dim checksave As Integer checksave = 1 For Each Control In SUPPLIERINFORMATION If TypeOf Control Is TextBox Then If Control.Enabled = False Then MsgBox "Please Fill All The Required Data ", vbCritical, "Dear User" checksave = 0 Exit For End If End If Next If checksave = 1 Then Adodc1.Recordset.Update MsgBox "Record Save In Database", vbOKOnly + vbInformation, "Dear User" End If cmdedit.Enabled = False Adodc1.Recordset.MoveFirst End Sub Private Sub Cmdrefresh_Click() Dim UPDATERECORD As Integer Dim checkdata As Integer
checkdata = 1 'UPDATE THE DATA IN DATABASE '***************************************************** 'check blank text box in form For Each Control In SUPPLIERINFORMATION If TypeOf Control Is TextBox Then If Control.Enabled = False Then MsgBox "Data is Not Present ", vbCritical, "Dear User" Cmdrefresh.Enabled = False checkdata = 0 Exit For End If End If Next If checkdata = 0 Then MsgBox "You Don't Have Permission To Update This Record ", vbCritical, "Dear User" Else MsgBox "You Have Permission To Update This Record ", vbInformation, "Dear User" UPDATERECORD = MsgBox("Are You Want To Update This Record", vbOKCancel, "Dear User") If UPDATERECORD = 1 Then Text1.Enabled = True Text2.Enabled = True Text3.Enabled = True Text4.Enabled = True cmdedit.Enabled = False smddelete.Enabled = False cmdadd.Enabled = False Cmdrefresh.Enabled = False Command1.Enabled = True End If End If End Sub Private Sub Command1_Click() Dim instatus As Integer instatus = 1 For Each Control In SUPPLIERINFORMATION If TypeOf Control Is TextBox Then If Control.Text = "" Then MsgBox "Please Fill All The Required Data ", vbCritical, "Dear User" instatus = 0 Exit For End If End If Next
If instatus = 1 Then Adodc1.Recordset.Update MsgBox "Record Save In The Database", vbOKOnly + vbInformation, "Dear User" cmdedit.Enabled = True Command1.Enabled = True smddelete.Enabled = True cmdadd.Enabled = True Cmdrefresh.Enabled = False End If Adodc1.Recordset.MoveFirst End Sub Private Sub smddelete_Click() Dim instatus As Integer instatus = 1 confirmdel = MsgBox("Are You Want To Delete This Record", vbOKCancel, "Dear User") For Each Control In SUPPLIERINFORMATION If TypeOf Control Is TextBox Then If Control.Enabled = False Then MsgBox "Textboxes Are Disabled ", vbCritical, "Dear User" smddelete.Enabled = False instatus = 0 Exit For End If End If Next If instatus = 1 Then Adodc1.Recordset.Delete MsgBox "Record Deleted In Database", vbOKOnly + vbInformation, "Dear User" End If Adodc1.Recordset.MoveFirst End Sub
OUTPUT
TESTING AND DEBUGGING INTRODUCTION:The implementation phase of software development is concerned with translating design specification into source code. The preliminary goal of implementation is to write source code and internal documentation so that conformance of the code to its specifications can be easily verified, and so that debugging, testing and modifications are eased. This goal can be achieved by making the source code as clear and straightforword as possible. Simplicity, clarity and elegance are the hallmark of good programs, obscurity, cleverness, and complexity are indications of inadequate design and misdirected thinking.
Source code clarity is enhanced by structured coding techniques, by good coding style, by, appropriate supporting documents, by good internal comments, and by feature provided in modern programming languages.
The implementation team should be provided with a well-defined set of software requirement, an architectural design specification, and a detailed design description. Each team member must understand the objectives of implementation.
SOME SPECIAL TERMS IN TESTING FUNDAMENTAL
1. Error
The term error is used in two ways. It refers to the difference between the actual output of software and the correct output, in this interpretation, error is essential a measure of the difference between actual and ideal. Error is also to used to refer to human action that result in software containing a defect or fault.
2. Fault
Fault is a condition that causes to fail in performing its required function. A fault is a basic reason for software malfunction and is synonymous with the commonly used term Bug.
3. Failure
Failure is the inability of a system or component to perform a required function according to its specifications. A software failure occurs if the behavior of the software is the different from the specified behavior. Failure may be caused due to functional or performance reasons.
SOME OF THE COMMON USED STRATEGIES FOR TESTING ARE AS FOLLOWS:-
a. Unit Testing
The term unit testing comprises the sets of tests performed by an individual programmer prior to integration of the unit into a larger system. The situation is illustrated as follows:
Coding & debugging ------- Unit testing ------- Integration testing
A program unit is usually small enough that the programmer who developed it can test it in great detail, and certainly in greater detail than will be possible when the unit
is integrated into an evolving software product. In the unit testing the programs are tested separately, independent of each other. Since the check is done at the program level, it is also called program teasing.
b. Module Testing
A module and encapsulates related component. So can be tested without other system module.
c. Subsystem Testing
Subsystem testing may be independently design and implemented common problems are sub-system interface mistake in this checking we concentrate on it.
There are four categories of tests that a programmer will typically perform on a program unit. 1) Functional test 2) Performance test 3) Stress test 4) Structure test
1) Functional Test
Functional test cases involve exercising the code with Nominal input values for which expected results are known; as well as boundary values (minimum values, maximum values and values on and just outside the functional boundaries) and special values.
2) Performance Test
Performance testing determines the amount of execution time spent in various parts of the unit, program throughput, response time, and device utilization by the program unit. A certain amount of avoid expending too much effort on fine-tuning of a program unit that contributes little to the over all performance of the entire system. Performance testing is most productive at the subsystem and system levels.
3) Stress Test
Stress test are those designed to intentionally break the unit. A great deal can be learned about the strengths and limitations of a program by examining the manner in which a program unit breaks.
4) Structure Test
Structure tests are concerned with exercising the internal logic of a program and traversing particular execution paths. Some authors refer collectively to functional performance and stress testing as “black box” testing. While structure testing is referred to as “white box” or “glass box” testing. The major activities in structural testing are deciding which path to exercise, deriving test date to exercise those paths, determining the test coverage criterion to be used, executing the test, and measuring the test coverage achieved when the test cases are exercised.
DEBUGGING Defect testing is intended to find areas where the program does not confirm to its specifications. Tests are designed to reveal the presence of defect in the system.
When defect have been found in the program. There must be discovered and removed. This is called “Debugging”. Defect testing and debugging is quite different testing establishes the existence of effects and
debugging is concerned with locating and
correcting this defect.
Locate
Error
Design Error Report
Repair Error
Request The program
APPENDIX
Data Control :The data control gives you access to database without any programming.
Module :Modules are used to store procedure. Procedure stored in a module can be called from any part of the application. This is one method by which forms and procedures in different forms can exchange information.
Text Box:This control displays that the user can edit. Frame:This control is used to draw boxes on the form and to group other elements. Command Button :A common button represent an action that is carried out when the used click the button.
CONCLUSION
1.
The RELIANCE FRESH is automated as hand written documentation is minimized to a bare minimum once the S/w is fully implemented.
2. The data can be easily backed up onto a reliable media so that no or minimal data loss is there in case of system crash. This project has made us require a professional outlook towards a problem statement and solving it to the best and maximum.
IMPLEMENTATION
This project is successfully implemented in Visual Basic and MS Access and was seen in all respect of specification. Any number of record can be maintained according to given schedule of store. Till now it is successfully working. As far as the modification in the this Project is considered, this facility is build in this project. You can add an customer information and also can delete his information from the database in case of his exit from this organization.
It is granted that this project will work as it is at Present and also in future as all specifications are along the time and frame of the department. Also this project can be successfully implemented in any organization.
MAINTENANCE Maintenance Phase: Any change to any component of the product (including documentation) after it has passed the acceptance test. Types of maintenance: 1. Perfective maintenance
Client requests changes to improve product effectiveness
Add additional functionality Make product run faster Improve maintainability 2. Adaptive maintenance Responses to changes in the environment in which the product operates The product is ported to a new compiler, operating system, and/or hardware 3.
Corrective Maintenance Suppose that the maintenance programmer has located the fault/Problem How to fix it without introducing a regression fault Major skills required for corrective maintenance Superb diagnostic skills Superb testing skills Superb documentation skills Difficulty of Maintenance About 67% of the total cost of a product accrues during the maintenance phase Maintenance is a major income source Nevertheless, even today many organizations assign maintenance to Unsupervised beginners, and Less competent programmers
The Rewards of Maintenance
Maintenance is a thankless task in every way Maintainers deal with dissatisfied users If the user were happy, the product would not need maintenance The user’s problems are often caused by the individuals who developed the product, not the maintainer The code itself may be badly written Maintenance is despised by many software developers Unless good maintenance service is provided, the client will take future development business elsewhere Maintenance is the most important phase of software production, the most difficult— and most thankless
BIBLIOGRAPHY
1.
Complete Reference Visual Basic 6.0
-
By Hebert Schild
2.
Mastering Visual Basic 6.0
-
By Evangelos Petroutsos
3.
Visual Basic 6 from ground up
-
By Gary Cornell
