Use Case Modeling

Topic: Online Auction System

a$)$ User Stories

i$)$ Write at least $5$ problem specific stories.

b$)$ Scenarios

i$)$ Prepare a scenario with sections; use case name, description, primary actors, supporting

actors, triggers, preconditions, post conditions, normal flow, alternate flows, business

rules for each user story

c$)$ Use Case Diagram

Online Auction System: This is a system where seller and buyer come together to

complete the deal. The potential bidders should be able to browse through website for desired product,

put a bid through a secure server. In the auction system a seller posts the details of product for sale, and

multiple potential buyer put their bid price. The auction can be limited for certain period. There may be

different conditions as per the online auction system needs. The newly requested price can be more,

lesser etc. as per the business logic, and can be handled easily. Online auction is essentially a specific

version of e$-$commerce system where the sellers and buyers are multiple. There may be variety of sellers

and as per their needs, different types properties can be applied to the product for sale.