EBay Inc. and its subordinates provide on-line market places for the sale of goods and services, on-line payments services, and on-line communicating offerings to persons and concerns in the United States and internationally. It operates in two sections, Markets and Payments. The Marketplaces section provides on-line commercialism platforms that enable purchasers and Sellerss to interact and merchandise with one another. It enables on-line commercialism through assorted platforms, including the traditional eBay.com platform and other online platforms, such as Den Bla Avis, BilBasen, eBay Anuncios, eBay Kleinanzeigen, eBay Annunci, Gumtree, Kijiji, LoQUo, Marktplaats.nl, and mobile.de, every bit good as StubHub, Half.com, Rent.com, and Shopping.com. This section besides provides assorted services, including feedback forum, safe seaport plan, verified rights proprietor plan, trueness plans, client support, and tools and services. The Payments section offers PayPal, a payments platform that enables persons or concerns with an electronic mail reference to direct and have payments online. Its services include fall ining the web, confirmation of its PayPal ‘s history holders, retreating money, and trust and safety plans, including PayPal ‘s marketer protection and purchaser protection plans. This section besides provides Bill Me Later, a payment solution, which offers transactional recognition at the point of sale for the U.S. on-line consumers. The company was founded in 1995 and is headquartered in San Jose, California.
HOW E BAY WORKS – PRACTICAL WAYS
Suppose command for an point placed by Anne starts at $ 1.00 and that the command increase sum in this monetary value scope is $ .25. Eric commands $ 3.00 for the point, and since no 1 else has command yet, eBay shows that the current victor is Eric, with a command of $ 1.00, and that the minimal allowable command is $ 1.25, which is equal to one command increase above the winning command. Suppose so that Bob bids $ 2.00 for the point. Since Eric has already bid more than Bob, eBay will expose that the current victor is Eric, with a command of $ 2.25, which equals the second-highest command ( $ 2.00 ) plus the command increase sum ( $ .25 ) . Again, eBay will besides expose that the minimal allowable command is $ 2.50, one command increase above the winning command. Suppose that Bob commands once more, this clip at $ 2.75. Again, since Eric ‘s command is higher than Bob ‘s, eBay will expose that the current winning bidder is Eric, with a command of $ 3.00, which is equal to the second-highest command ( $ 2.75 ) plus the command increase ( $ .25 ) . eBay will besides expose that the minimal allowable command is $ 3.25, one command increase above the current winning command. Suppose Bob bids one more clip, at $ 10.00. Since Bob ‘s command is now higher than Eric ‘s, eBay will expose that the current winning bidder is Bob, with a command of $ 3.25, which is equal to the second-highest command ( $ 3.00 ) plus the command increase ( $ .25 ) . If Bob were to win the auction, he would hold to pay the sum equal to the winning command ( $ 3.25 ) , even though his old command was much larger than that.
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Common points in on-line sale
INPUT – PROCESS – End product
Input signals: Computer, waiters, web page design
End products: Electronic payment, physical transportation of the goods
Web page design
Physical transportation of goods
More elaborate Input-Process-Output in EBAY
Procedure ( OLTP database )
Live Bid Tracking
Collaborating & A ; analysis
Here is more elaborate procedure
INPUT PROCESS OUTPUT
Live Bid Tracking
Feedback coaction & A ; analysis
Sale / sale understanding
ENTITIES AND ATTRIBUTES IN EBAY
A database consists of tabular arraies and columns, as described in the preceding subdivision. There are some other footings you need to cognize in order to understand how databases work. A database is built in two phases. First make a logical information theoretical account to put out the design of the database and how the information will be organized. Then you implement the database harmonizing to the physical information theoretical account, which sets up the existent tabular arraies and columns. Different nomenclature applies to the elements of the logical and physical designs.
Entity: An entity corresponds to something in the existent universe that is of involvement and that you want to hive away information about. Examples of entities include things such as sections within an organisation, employees, or gross revenues. Each specific section or employee is considered an case of that entity. For illustration, in Table 3, Doug is an case of the entity Employee. ( In the OO universe, Doug would be an object in the Employee category. )
Property: This word is used in both relational and OO databases to stand for information about an entity case or an object that will be tracked. An illustration of an property might be the birth day of the month or Social Security figure of an employee.
Entities ( categories ) , their properties, and cases ( objects ) : These are implemented in the database as tabular arraies, columns, and rows severally.
AUCTION TYPES IN EBAY
EBay.com offers several types of auctions.
Auction-style listings allow the marketer to offer one or more points for sale for a specified figure of yearss. The marketer can set up a reserve monetary value.
Fixed monetary value format allows the marketer to offer one or more points for sale at a Buy It Now monetary value. Buyers who agree to pay that monetary value win the auction instantly without subjecting a command.
Fixed monetary value format with best offer allows the marketer to accept best offers. If a purchaser submits a best offer, the marketer either culls or accepts the best offer. If the best offer is non satisfactory, a marketer may subject a counter offer to the purchaser. Best offer is non available for auction manner listings. In add-on, best offer is non available in every class. Sellers besides meet specific demands in order to sell with best offer.
Following ERD diagram explains how auction works in E bay
Here are list of all Entities its properties
OLTP DATABASE ( EBAY )
Items command on
Item put up for sale
Item put up for auction
History of minutess
Item inside informations
( Chen presentment )
Items put up for sale
Items put up for auction
History of dealing
( note same as given for purchaser since no infinite giving here )
Operation OF ATTRIBUTES FROM CUSTOMER ‘S POINT OF VIEW:
This contains the client ‘s name, ID and Email to hold a connecting point with the company.
Concept OF CAD IN EBAY
You may utilize a Context Diagram to scope the undertaking as it provides a ocular theoretical account of the interactions between the system you are traveling to construct and the outside entities that interface with the solution. Such diagram is easy understood by the stakeholders and is used to acquire understanding on the range under reappraisal. The system to be build is represented as a circle in the center and the external entities are represented as rectangles around it. For illustration the external entities could be Finance, Vendors, Marketing, Customers, etc. The interactions between the system and the external entities ( the procedures ) are represented as arrowed lines, indicating to the having party. The text following to each line briefly describes the interaction: provide promotional inside informations, deliver supplies, petition service, etc. After the context diagram has been agreed upon, you may get down with the Data Flow Diagram. You take a individual procedure from the Context Diagram and break up it in a Data Flow Diagram. Both Context and Data Flow Diagrams are portion of the structured analysis attack.
To enable the CAD diagram the practical operation of E bay is to be known. Get downing in August 2007, eBay required listings in “ Video Games ” and “ Health & A ; Beauty ” to accept its payment system PayPal and Sellerss could merely accept PayPal for payments in the class “ Video Games: Consoles ” . Get downing January 10, 2008, eBay said Sellerss can merely accept PayPal as payment for the classs “ Computing & gt ; Software ” , “ Consumer Electronics & gt ; MP3 Players ” , “ Wholesale & A ; Job Lots & gt ; Mobile & A ; Home Phones ” , and “ Business, Office & A ; Industrial & gt ; Industrial Supply / MRO ” .
NOW LET US See THE FUNCTIONING OF CAD IN EBAY
WEB PAGE SECURITY DETAILS
PRODUCT TYPE SELECT ION
ELECTRONIC TRANSFER OF PAYMENT
PHYSICAL TRANSFER OF GOODS
AUCTION AND BIDDING RESULTS
Completion OF TRANSACTION
INPUTS PROCESS OUTPUTS
More Accurate Contact Analysis Diagram of EBAY
Live Bid Tracking
Feedback coaction & A ; analysis
Sale / sale understanding
DFD ( DATA FLOW DIAGRAM )
DFDs contain a system boundary which contains the whole “ system ” . Data flows can traverse that boundary into the “ environment ” . Objects outside the system known as “ eradicators ” . An Information System is merely portion of a human system. There must be a bound sing what data it processes otherwise it will continually spread out, ne’er being a finished and complete system. This can take to jobs in the operation of the system as it becomes more complex and the chance of big system mistakes being introduced additions. Datas stored about objects or people should merely be relevant informations. When developing a system a statement of purpose must be. This is merely a short concise statement about the intent of system. The purpose statement is framed as follows.
Data shops will be in boxes consists of client inside informations, Inventory inside informations like the type of merchandises ( place decor, jewellery, Mobiles, dresss, wellness attention merchandises aˆ¦ ) , confirmation of stock in instance of Mobiles and jewellery, payment inside informations like recognition card individuality and other inside informations like figure and expiry day of the month. Main procedure will be on little boxed consisting of Receive intent/order, Check stock list, Order processing, Receive bringing and despatch of stock to the client