A Persona-Based Modelling for Contextual Requirements

Abstract

Abstract. [Context&Motivation] Personas are a technique used to guide developing products accommodating people diversity. They are archetypes reflecting common combinations of users' characteristics, needs and goals. Persons can add a human-centred facet to requirements engineering practice which is often revolving around the concept of business roles. [Question/Problem] Goal modelling is an example of mainstream requirements engineering approach driven by business roles and their responsibilities and needs represented as goals. Personnel in the system are expected to act according to this prescriptive specification. Personnel diversity is often seen as a customization and design issue. [Principal idea/Results]. In this paper we propose to consider such diversity as a conditional context in requirements modelling and, as an approach, augment Contextual Goal Model (CGM) with personas as a new contextual dimension. Additionally, we propose an algorithm to analyse the achievability of CGM goals in the presence of the personas contexts variation. We evaluate our approach using a Mobile Personal Emergency Response System (MPERS) implemented as a prototype.[Contribution] Our persona-based modelling approach paves the way to augment requirements with a consideration of people diversity and enrich the business perspective with a more user-centred design facet.

Visualising personas as goal models to find security tensions

“…2.1 Personas for security UX professionals have long used personas to bring user requirements to life, and there has been some work within the RE community on using personas to add contextual variability to social goal models (Nunes Rodrigues et al, 2018).…”

Identifying Implicit Vulnerabilities Through Personas as Goal Models

“…UX professionals have long used personas to bring user requirements to life, and there has been some been work within the Requirements Engineering community on using personas to add contextual variability to social goal models, e.g. [22].…”