Generating Proto-Personas through Prompt Engineering: A Case Study on Efficiency, Effectiveness and Empathy

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Autori principali: Ayach, Fernando, Lameirão, Vitor, Leão, Raul, Felizardo, Jerfferson, Sobrinho, Rafael, Borges, Vanessa, Matsubara, Patrícia, Fontão, Awdren
Natura: Preprint
Pubblicazione: 2025
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author Ayach, Fernando
Lameirão, Vitor
Leão, Raul
Felizardo, Jerfferson
Sobrinho, Rafael
Borges, Vanessa
Matsubara, Patrícia
Fontão, Awdren
author_facet Ayach, Fernando
Lameirão, Vitor
Leão, Raul
Felizardo, Jerfferson
Sobrinho, Rafael
Borges, Vanessa
Matsubara, Patrícia
Fontão, Awdren
contents Proto-personas are commonly used during early-stage Product Discovery, such as Lean Inception, to guide product definition and stakeholder alignment. However, the manual creation of proto-personas is often time-consuming, cognitively demanding, and prone to bias. In this paper, we propose and empirically investigate a prompt engineering-based approach to generate proto-personas with the support of Generative AI (GenAI). Our goal is to evaluate the approach in terms of efficiency, effectiveness, user acceptance, and the empathy elicited by the generated personas. We conducted a case study with 19 participants embedded in a real Lean Inception, employing a qualitative and quantitative methods design. The results reveal the approach's efficiency by reducing time and effort and improving the quality and reusability of personas in later discovery phases, such as Minimum Viable Product (MVP) scoping and feature refinement. While acceptance was generally high, especially regarding perceived usefulness and ease of use, participants noted limitations related to generalization and domain specificity. Furthermore, although cognitive empathy was strongly supported, affective and behavioral empathy varied significantly across participants. These results contribute novel empirical evidence on how GenAI can be effectively integrated into software Product Discovery practices, while also identifying key challenges to be addressed in future iterations of such hybrid design processes.
format Preprint
id arxiv_https___arxiv_org_abs_2507_08594
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Generating Proto-Personas through Prompt Engineering: A Case Study on Efficiency, Effectiveness and Empathy
Ayach, Fernando
Lameirão, Vitor
Leão, Raul
Felizardo, Jerfferson
Sobrinho, Rafael
Borges, Vanessa
Matsubara, Patrícia
Fontão, Awdren
Software Engineering
Artificial Intelligence
Human-Computer Interaction
Proto-personas are commonly used during early-stage Product Discovery, such as Lean Inception, to guide product definition and stakeholder alignment. However, the manual creation of proto-personas is often time-consuming, cognitively demanding, and prone to bias. In this paper, we propose and empirically investigate a prompt engineering-based approach to generate proto-personas with the support of Generative AI (GenAI). Our goal is to evaluate the approach in terms of efficiency, effectiveness, user acceptance, and the empathy elicited by the generated personas. We conducted a case study with 19 participants embedded in a real Lean Inception, employing a qualitative and quantitative methods design. The results reveal the approach's efficiency by reducing time and effort and improving the quality and reusability of personas in later discovery phases, such as Minimum Viable Product (MVP) scoping and feature refinement. While acceptance was generally high, especially regarding perceived usefulness and ease of use, participants noted limitations related to generalization and domain specificity. Furthermore, although cognitive empathy was strongly supported, affective and behavioral empathy varied significantly across participants. These results contribute novel empirical evidence on how GenAI can be effectively integrated into software Product Discovery practices, while also identifying key challenges to be addressed in future iterations of such hybrid design processes.
title Generating Proto-Personas through Prompt Engineering: A Case Study on Efficiency, Effectiveness and Empathy
topic Software Engineering
Artificial Intelligence
Human-Computer Interaction
url https://arxiv.org/abs/2507.08594