Browsing by Author "Lilja, Tuomas"

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • Roolikuvauksiin perustuva lähestymistapa käyttäjävaatimusten selvittämisessä
    (2005) Lilja, Tuomas
     Helsinki University of Technology | Master's thesis
    This thesis describes an approach based on role descriptions for user requirements elicitation. The approach is characterized by role-based analysis and description of data gathered in user studies. A role is a collection of responsibilities that accomplish a coherent part of the work carried out in an organization. Roles are seen as atomic elements which compose the work the work of an employee is made up of one or several roles. A role description describes in verbal form the tasks and the context associated with the role. The approach developed in this thesis is based on principles and methods introduced in Contextual Design and Goal-Directed Design. Users are studied by interview and observation. The data gathered in the studies is then analysed with a method that follows the principles of role-based analysis in Contextual Design. In the analysis the users' work is broke up into roles using an affinity diagram. Role descriptions are then produced by transforming the information in the affinity diagram into verbal form. The format of the descriptions resembles personas introduced in Goal-Directed Design. Finally, user requirements of the system being developed are elicited from the role descriptions. The approach described in this thesis was developed in a product development project in Adage Corporation. The approach was used in eliciting user requirements for a web-based content management system being developed in the project. The suitability of the approach for the project was then evaluated in two ways. The product development team was interviewed and the properties of the approach were compared to Contextual Design and Goal-Directed Design. Based on the evaluation, the approach was found to be easy to use in product development. The approach was also considered to be lighter than Contextual Design and Goal-Directed Design.