Real Time Commercial Bidding System

1
Real Time Commercial Bidding System

• Group 7
• Edward Glowacki, Kristina Johnson, Paul Wiles,
  Cheryl Carlson

2
Real Time Commercial Bidding System

• Provides Distributed Online Brokering
• Motivation for Project
• Time and Effort Saver
• Economic Competition
• Profit

3
Overview of Features

• Distributed System
• Real Time
• Centralized Access Point
• Supports Companies and Individuals

4
Overview of Features, cont.

• Fault Tolerance
• Reliability
• Security
• Legal Consideration

5
Description of Class Model

• Class Model Layout
• Three Main Classes
• Auction Site
• Auctioneer
• Client
• Motivation for Design
• Accommodate Distributed Nature of System

6
Class Model
7
Defining Terms

• Problem
• Terms in original problem description vague,
  unclear
• Solution
• Defined data dictionary very early

8
Account Setup

• Problem
• Requirements do not specify account details
• Solution
• Suggested certain data members
• Left class open-ended to accommodate future
  changes

9
Authorization

• Problem
• Difference between Register and Authorize
  unclear
• Solution
• Registration/Authentication for auction site
• Authorization for individual auctions

10
Transactions/End Auction

• Problem
• What happens when auction ends?
• Solution
• Defined users as responsible for physical
  exchange of goods/services for funds
• Payment outside of the system
• Auction site monitors transaction for
  reconciliation

11
Communication During Auction

• Problem
• How much information need be available to the
  user?
• Solution
• Inform client of
• high bid amount
• bid history
• auction details
• Anonymity is preserved

12
Fault Tolerance

• Problem
• What happens if something fails?
• Solution
• Connection Failures
• Module Failures

13
Security

• Problem
• Who to trust?
• Solution
• Consider System Security
• Validate Input

14
Promela and XSpin

• Discussion of Analysis
• Deadlock found new bid max bid?
• Simplify Structure

15
Future Considerations

• Multiple Auction Client
• User Rating System
• Saving/Loading Auctions
• Auto-Bid/Bid Incrementing
• Removing Users From Auctions