{"id":2510,"date":"2015-04-28T19:06:53","date_gmt":"2015-04-28T19:06:53","guid":{"rendered":"http:\/\/blog.soton.ac.uk\/smallworld\/?p=2510"},"modified":"2015-04-28T22:08:48","modified_gmt":"2015-04-28T22:08:48","slug":"the-differences-between-a-scenario-and-a-use-case","status":"publish","type":"post","link":"https:\/\/blog.soton.ac.uk\/smallworld\/2015\/04\/28\/the-differences-between-a-scenario-and-a-use-case\/","title":{"rendered":"The differences between a scenario and a use case"},"content":{"rendered":"

Use cases are a technique for capturing the functional requirements of system.
\nUse cases work by describing the typical interactions between the users of
\na system and the system itself, providing a narrative of how a system is used.<\/p>\n

Rather than describe use cases head-on, I find it easier to sneak up on them
\nfrom behind and start by describing scenarios. A scenario is a sequence
\nof steps describing an interaction between a system and a user.<\/strong> So if
\nwe have a Web-based on-line store, we might have a Buy and Product scenario that
\nwould say like this:<\/p>\n

The customer browses the catalog and adds desired items to the shopping basket.<\/em>
\n When the customer wishes to pay, the customer describes the shipping and credit<\/em>
\n card information and confirms the sale. The system checks the authorization on<\/em>
\n the credit card and confirms the sale both immediately and with a follow-up email.<\/em><\/p>\n

This scenario is one thing that can happen. However, the credit card authorization
\nmight fail, and this would be a separate scenario. In another case, you may have
\na regular customer for whom you don’t need capture the shipping and credit card
\ninformation, and this is a third scenario.<\/p>\n

All these scenario are different yet similar. The essence of their similarity is that
\nin all these three scenarios. the user has the same goal: to buy a product. The user
\ndoesn’t always succeed, but the goal remains. This user goal is the key to user cases:
\nA use case is a set of scenarios tied together by a common user goal <\/strong>(Fowler, 2004).\u00a0<\/strong><\/p>\n

\"scenario<\/p>\n

http:\/\/www.inf.unibz.it\/~ryzhikov\/HCI\/hci_02.pdf<\/p>\n

References:\u00a0<\/strong><\/p>\n

Fowler, M 2004, UML Distilled : A Brief Guide To The Standard Object Modeling Language \/ Martin Fowler ; [Forewords By Cris Kobryn … [Et Al.]], n.p.: Boston : Addison-Wesley, c2004., University of Southampton Library Catalogue, EBSCOhost, viewed 28 April 2015.<\/p>\n","protected":false},"excerpt":{"rendered":"

Use cases are a technique for capturing the functional requirements of system. Use cases work by describing the typical interactions between the users of a system and the system itself, providing a narrative of how a system is used. Rather … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":97423,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8883],"tags":[8898,975479],"class_list":["post-2510","post","type-post","status-publish","format-standard","hentry","category-related-academic-work","tag-scenario","tag-user-cases"],"_links":{"self":[{"href":"https:\/\/blog.soton.ac.uk\/smallworld\/wp-json\/wp\/v2\/posts\/2510","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.soton.ac.uk\/smallworld\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.soton.ac.uk\/smallworld\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/smallworld\/wp-json\/wp\/v2\/users\/97423"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/smallworld\/wp-json\/wp\/v2\/comments?post=2510"}],"version-history":[{"count":6,"href":"https:\/\/blog.soton.ac.uk\/smallworld\/wp-json\/wp\/v2\/posts\/2510\/revisions"}],"predecessor-version":[{"id":2530,"href":"https:\/\/blog.soton.ac.uk\/smallworld\/wp-json\/wp\/v2\/posts\/2510\/revisions\/2530"}],"wp:attachment":[{"href":"https:\/\/blog.soton.ac.uk\/smallworld\/wp-json\/wp\/v2\/media?parent=2510"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/smallworld\/wp-json\/wp\/v2\/categories?post=2510"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/smallworld\/wp-json\/wp\/v2\/tags?post=2510"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}