Implementing a Web Based Auction System using UML and Component-Based Programming

7/14/2019 Implementing a Web Based Auction System using UML and Component-Based Programming

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Implementing a Web Based Auction

System using UML and Component-

Based Programming

Alexander J. Czisny

AIT 610Wednesday, 4:30 – 7:15



Outline

• Background and Related Research

– Unified Modeling Language (UML)

– Component-based programming

– Auction systems

• System analysis and design

– Scenario-based specification

–Designing with UML notations

• System implementation and results

• Summary



Background and Related Research

• Used Use Case, Class Sequence, and Component

Diagrams offered by UML for designing a auction

system.

• Implementation, with its component-basedprogramming, enabled the company to develop a

maintainable system with a number of reusable

components

• The system uses intelligent agents that permit fair

help to bidders participating in auctions and at the

same time achieve maximum profit for the seller.




Cont.

• Unified Modeling Language (UML)

– UML used to visually model and document the

artifacts of an Object-Oriented system under

development.

– Used Use Case Diagrams, Sequence Diagrams, and

Component Diagrams for analyzing user’s

requirements, the ordering of messages anddocumenting relationship among components.




Cont.

• Component-based programming

– Enabled fast deployment of maintainable softwareby reusing prefabricated components that are

independent executable units. – Implemented the auction system using

component based programming for easymaintenance as well as convenient reuse of these

components.• 3 components are MethodofBidding, Certification, and

RegistrationGood




Cont.

• Auction systems

– Agent based approach for implementation

• PurchaserAgent, SellerAgent, and FacilitatorAgent



System analysis and design

• Scenario-based specification

– Allowed an intuitive way of visualizing,

understanding and analyzing the system design

requirements.



System analysis and design•

Designing with UML notations – The auction system was designed using the Use Case,

Sequence, Class and the Component Diagrams

• Use case diagram

– Diagram for the actions that users can perform in an auction




• Class diagram

– Describes the types of objects that exist in the system and

shows the static relationships among internal classes of the

system




• Sequence diagram

– Displays the overall flow of control in an object-oriented

program




• Component diagram

– Made entities that are used in the auction as components

using Java Beans.

– It is possible to modify relevant parts/components without

affecting the entire system.




– Components and algorithms

• Eight components developed

– The Certificaiton, RegistrationGood, and MethodofBidding

components. They can be easily adapted for reuse in other

systems.



System implementation and results

• Successfully implemented a web based web-basedauction system using UML and components

• Rigorous design and analysis phase and robustcomponent-based implementation enabled thecompany to achieve a minimal defect rate in the finalproduct.

• Because the system was designed using UML, anyadditions/modifications to the system design was

easily facilitated.

• The system is easily able to evolve in the fast changingInternet environment

Implementing a Web Based Auction System using UML and Component-Based Programming

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