User Stories In Interaction Design

User Stories in Interaction Design Hans Põldoja Tallinn University

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What are user stories? • User stories are simple, clear and brief descriptions of functionality that will be valuable for real users • User stories are typically used in agile software development methods such as XP and Scrum • User stories build a bridge between the users, designers and the developers

Start with paper cards

Paper cards • User story • Note(s) • Test cases (on the back side of the card) (Cohn, 2004)

Example A company can pay for a job posting with a credit card. Note: Accept Visa, MasterCard and American Express. Consider Discover. Test with Visa, MasterCard and American Express (pass) Test with Diner’s Club (fail) Test with good, bad and missing card ID numbers Test with expired cards (Cohn, 2004)

Good user story • Independent • Negotiable • Valuable to users and customers • Estimatable • Small • Testable (Cohn, 2004)

Reﬁne the user stories

Guidelines • Start with goal stories • Break large stories into smaller pieces • Write closed stories (that ﬁnish with completed goal) • Keep the UI out as long as possible • Include user roles in the stories • Write for one user • Write in active voive (Cohn, 2004)

Discuss and accept the user stories

SCRUM process • User stories are discussed and edited by the users, designers and stakeholders • User stories are accepted by product owners • Enhancement tickets are created from accepted user stories

Photos • Paul Downey, http://www.ﬂickr.com/photos/psd/3731275681/

References • Cohn, M. (2004). User Stories Applied For Agile Software Development. Boston, MA: Addison Wesley.

Thank You! • hans.poldoja@tlu.ee • http://imkedesign.wordpress.com

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User Stories In Interaction Design

by Hans Põldoja

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