is3320 developing and using management information systems lecture 10: use cases and scenarios 2:...

IS3320 Developing and Using Management Information SystemsLecture 10: Use Cases and Scenarios 2: The case of Threadless

Rob Gleasure

R.Gleasure@ucc.iewww.robgleasure.com

IS3320

Today’s lecture Threadless.com Exercise

Threadless

Threadless is an eBusiness that sells t-shirts and other clothing

Each week contests are run to design a t-shirt (these attract 1000s of entries)

The public vote on their favourite designs and around 10 designs per week are taken forward for printing, for which the winning designers receive about $2500 in prizes

Threadless print these designs on a limited number of clothing items are sell them online

The Threadless Model

What’s so clever about this model?

Can you think of anywhere else it’s being applied?

What’s different/similar about those situations?

Exercise

Imagine the Crawford Art Gallery has decided it wants to host 3 annual exhibits for 3 individual up-and-coming student artists in UCC… but doesn’t want to take a financial gamble in doing so

You are charged with designing a system that will use the Threadless model to make this happen

Exercise

In groups of 3… Create a use case diagram for a system that can host these

exhibition crowdsourcing contests for the Crawford Create a textual use case specification for the two most important

use cases you identify

Textual Use Case Specification

From A. Cockburn, “Basic Use Case Template”

Number

Name

Summary

Priority

Preconditions

Postconditions

Primary Actor(s)

Secondary Actor(s)

Trigger

Main Scenario Step Action

Extensions Step Branching Action

Open issues

Want to read more?

‘The consumer is the company’ (2008) http://www.inc.com/magazine/20080601/the-customer-is-the-

company_pagen_2.html

Threadless case study (2010) http://www.stolaf.edu/depts/ciswp/mmoon/documents/chicagothreadlesscase.pdf