Journal of Software Engineering and Applications, 2011, 4, 187-190
doi:10.4236/jsea.2011.43021 Published Online March 2011 (
Copyright © 2011 SciRes. JSEA
Mobile Based Electricity Bill Deposit System
through UML
Pawan Kumar Chaurasia1, Vipin Saxena2
1Department of Information Technology, Babasaheb Bhimrao Ambedkar University, Lucknow (U.P), India; 2Department of Compu-
ter Science, Babasaheb Bhimrao Ambedkar University, Lucknow, India.
Received January 5th, 2011; revised March 10th, 2011; accepted March 12th, 2011.
The presen t paper dea ls with a mode l design through Unified Mod eling Languag e (UML) for a mobile based electricity
bill deposit system. Due to comp lex life style of people this model is proposed in the fo rm of UML Class, Sequence and
Use Case diagrams. For implementation of propo sed model, a real ca se study of Uttar Pradesh Electricity Bill deposit
System is considered. By the use of this model, one can display the status of deposited electricity bill on a hand held
mobile device system.
Keywords: UML, Mobile Device, Electricity Bill, UML Class, UML Sequence & UML Use Cases
1. Introduction
UML is a unique and most popular modeling language
which has been used by various researchers for produc-
ing the object oriented designs. Slowly-slowly Software
Industries are shifting their old structured design models
in the form of object oriented design models by the use
of UML. But, researchers are not emphasizing towards
the use of UML for creating the Object Oriented Data-
bases which are a fundamental requirements of the Obje-
ct Oriented Models. Therefore, the present paper is an at-
tempt to create Object Oriented Database through UML.
Booch [1,2] has introduced the notations of UML which
are used for the Object-Oriented analysis and Design
with applications. For reducing the complexity of the
structured designs, the three researchers namely G. Booch,
James Rambugh and Ivar Jacobson [3-6] have introduced
the object orientation in the software designs as well as
in the software higher level languages which are nowa-
days most popular among the Software Industries/Soft-
ware Professionals/Researchers. This representation is
called as a meta-model, which describes the objects, at-
tributes and relationship necessary to represent the con-
cepts of UML within a software application. Malik, Dra-
gos and Johan [7] presented a model-based testing ap-
proach for integ ration UML, UML-B and the Qtronic test
generator tool for increasing the quality of models throu-
gh test case generations. UML is easily translated into
real world applications. Using this modeling language
one can develop the software in a valuable and resource-
ful manner [8,9].
UML class diagrams are the most important structural
model and indeed the central model for researchers and
developers. Unified Modeling Language is a widespread
visual language provided by Object Management Group
(OMG) for the construct, description, documents and
modeling of systems software and processes. The initial
version of UML (UML 1) originated with three leading
object-oriented methods (BOOCH, OMT and OOSE).
One of the purposes of UML is to provide the develop-
ment community with a stable and common design lan-
guage i.e. it is programming language independent. UML
diagrams are grouped into language units. It describes
Semantics, Notations and Standard Profiles. UML can
define the model specification into structure, behavior
and concepts [10].
UML 2.0 Superstructure models are serialized in XML
2.1 & XML files containing package merges are seman-
tically equivalent to the same XML files with the pack-
age merges merged away [11]. Object Management group
(OMG) promotes the theory and practice of object-orien-
ted technology in software development [12]. Smith in-
itiated the software performance engineering and sum-
marizes the UML. Pooley et al. [13-14] described the
software process and lifecycle and explained how object
oriented and component based engineering affect the de-
Mobile Based Electricity Bill Deposit System through UML
Copyright © 2011 SciRes. JSEA
sign process.
In the present work, object oriented database has been
created for a real case study of Uttar Pradesh Electricity
Bill Deposit System. Recently Government of Madhya
Pradesh started the online electricity billing through In-
ternet using cash card [15]. In the current Electricity Bill
Deposit System, customer has to go to the Bill Section of
the Electricity Department and can pay through cash or
cheque. But by the use of proposed model, the Customer
can pay the amount of Electricity Bill through a hand
held Mobile Device by entering the credit/debit card
number and within a few seconds, customer will get a
SMS of the paid amount. In the proposed model, a UML
Class, Sequence and UML Use Case diagrams are given.
2. Uml Modeling for Electricity Bill Deposit
2.1. UML Class Diagram
The static representation of the software problems can be
explained by the of the UML Class diagram. The purpose
of a class diagram is to depict the classes within a model.
In an object oriented application, classes have attributes,
operations and relationships with other classes. The pre-
sent work emphasized on the object oriented databases as
shown in the following Figure 1. In this diagram, a cus-
tomer (CUSTOMER Class) has a mobile device (MO-
BILE_DEVICE Class) and card (CARD Class) which may
be credited (CREDIT_CARD Class) or debit (DEBIT_
Figure 1. UML class diagram for mobile based electricity bill deposit system.
Mobile Based Electricity Bill Deposit System through UML
Copyright © 2011 SciRes. JSEA
CARD Class) card. The customer enquires from the bill-
section (BILL_SECTION Class) through network avail-
able on the mobile device. The main role of this b ill sec-
tion is to generate the bills and after the payment of the
bills, this section sends a copy to the Electricity Depart-
ment (ELECT_DEPT Class) and SMS to the mobile de-
vice of the customer. The payment of the bill is only
done after the verification of the customer card by the
bank consortium (BANK_CONSORTIUM Class) which
has separate verification department (VERIFICATION
2.2. UML Sequence Diagram
A sequence diagram has two dimensions. The vertical di-
mension shows the sequence of messages/calls in the time
order that they occur, the horizontal dimensions shows the
object instances to which the messages are sent. Sequence
diagram shows the relationship between classes arranged
in a time sequence. In the given sequence diagram as
shown in Figure 2, there are three objects. Customer
(CUSTOMER Object) sends enquiries for a b ill, bill sec-
tion (BILL_SECTION Object) of the electricity depart-
ment generates a bill. Customer paid a bill by card using
credit/debit card. The bill section sends a card for verifi-
cation into a bank. Then the verification section of the
bank (BANK_CONSORTIUM Object) verifies the card
and acknowledges to th e bill section of the electricity de-
partment. Bill section sends SMS for amount paid to the
2.3. UML Use Case Diagram
A use case diagram is a diagram which shows a set of use
cases and actors and their relationships. Use case diagra-
ms commonly contain the use cases, the actors, the gene-
ralization relationship between actors, the precede rela-
tionships between use cases and the association relation-
ships between actor and use cases. Model captures the
important aspects of the thing being modeled from a cer-
tain point of view and simplifies or omits the rest. Model
of a software system is made in a modeling language such
as UML. The model has both semantic and can take var-
ious forms that include both pictures and text. A use case
diagram is shown below in Figure 3.
3. Concluding Remarks
From the above work it is concluded Mobile Based UML
Modeling for Electricity Bill Deposit System is only ef-
fective in those areas where the computerization has been
done. By the proposed UML model, CUSTOMER en-
quires the bill from the BILL_SECTION and paid
through the CARD . Bank verifies the payment and sends
the acknowledgement to the BILL_SECTION. BILL_
Figure 2. UML sequence diagram for mobile based electric-
ity bill deposit system.
Figure 3. UML use case diagram for mobile based electrici-
ty bill deposit system.
SECTION sends SMS on the customer hand held device
MOBILE_DEVICE. In the above model, object oriented
database has been designed and a large database can be
stored by the use of data cube methods. The above work
can also be extended for mining the data from cubes and
one can get the desired information within a fraction of
seconds on han d hel d device.
4. Acknowledgments
The authors are very thankful to Prof. B. Hanumaiah,
Vice-Chancellor, Babasaheb Bhimrao Ambedkar Uni-
versity (A Central University), Vidya Vihar, Rae Bareli
Road, Lucknow, India for providing excellent computa-
tion facilities in the University campus. Thanks are also
due to University Gran t Commission , New Delhi fo r pro-
viding research funding to th e University.
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Mobile Based Electricity Bill Deposit System through UML
Copyright © 2011 SciRes. JSEA
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