The Effect of Smiling Pictures on Perceptions of Personas

In this research on impact of smile on persona perceptions with Soon-gyo Jung, João Santos, and Jim Jansen, we find that persona profiles with a smiling photo result in an increase in perceived similarity with, likability of, and willingness to use a persona. However, a smile does not increase the credibility of a persona. Our research has implications for the design of persona profiles and adds to previous findings of persona research that the picture choice influences individuals’ persona perceptions in profound ways.

persona smiles

Salminen, J., Jung, S.-G., Santos, J. M., & Jansen, B. J. (2019). The Effect of Smiling Pictures on Perceptions of Personas. UMAP’19 Adjunct Publication of the 27th Conference on User Modeling, Adaptation and Personalization. Larnaca, Cyprus: ACM.

Latest Persona Research from CHI2019

CHI — or ACM Human Factors in Computing Systems — is one of the most relevant conferences for persona research, and the largest in the field of human-computer interaction (HCI).

This year, our team had three persona papers at CHI, published as extended abstracts.

Persona research at CHI2019:

Jung, S.-G., Salminen, J., and Jansen, B. J. (2019). Personas Changing Over Time: Analyzing Variations of Data-Driven Personas During a Two-Year Period. In Extended Abstracts Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI 2019), Glasgow, UK.

Jung, S.-G., Salminen, J., and Jansen, B. J. (2019). Creating Manageable Persona Sets from Large User Populations. In Extended Abstracts Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI 2019), Glasgow, UK.

Salminen, J., Jung, S.-G., & Jansen, B. J. (2019). Detecting Demographic Bias in Automatically Generated Personas. In Extended Abstracts Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI 2019), Glasgow, UK.

Confusion and Information Triggered by Photos in Persona Profiles

For one of our research projects we investigate whether additional photos beyond a single headshot makes a persona profile more informative without confusing the end user.

We conduct an eye-tracking experiment and qualitative interviews with digital content creators after varying the persona in photos via a single headshot, a headshot, and photo of the persona in different contexts, and a headshot with photos of different people with key persona attributes the gender and age.

Findings show that contextual photos provide significantly more persona information to end users; however, showing photos of multiple people engenders confusion and lowers informativeness. Also, as anticipated, viewing additional photos requires more co.gnitive focus, which is measured by eye-tracking metrics; these metrics are correlated with levels of informativeness and confusion.

Furthermore, various interpretations of the persona based on the choice of photos are biased by the end users’ experiences and preconceptions.

Concerning persona design, findings indicate that persona creators need to consider the intended persona use objectives when selecting photos and when producing persona profiles. Using contextual photos can improve informativeness, but this demands more cognitive focus from end users.

Thus, adding contextual photos increases the perceived informativeness of the persona profile without being obfuscating, but multiple photos of different people do evoke confusion about the targeted persona.

Salminen, J., Jung, S.G., An, J., Kwak, H. Nielsen, L., and Jansen, B. J. (2019) Confusion and Information Triggered by Photos in Persona Profiles. International Journal of Human-Computer Studies. 129(2019), 1-14

Review: Personas – User Focused Design by Lene Nielsen

This review has been co-authored by Willemien Froneman, Joni Salminen, and Jim Jansen.

In the second edition of Personas – User Focused Design, Dr. Lene Nielsen describes a detailed method for implementing personas in development and innovation projects. Dr. Nielsen has pioneered the use of personas in user experience and has more than 20 years’ experience in the field. In addition to writing numerous research articles on personas, she has led masterclasses and workshops and has worked in industry and with government agencies for deployment of personas. Her practical and theoretical experience has culminated in the formulation of “10 steps to personas” – the method outlined and explained in this book.

The book is aimed at managers and team members who are looking to start implementing the persona method in product and service development, and at students who wish to use the method in their projects and who need to be familiar with the practical implications of the persona method as well as its theoretical foundations.

The book starts off with a premise that will be familiar to UX designers: the centrality of user experience in product and service development and the need for placing the everyday experience of users at the centre of the design process. As opposed to other approaches to UX design, the persona method uses fictitious representations of users rather than real users in the design process. A persona is a user who does not exist but is described as someone who could be real. Although personas are fictitious they are derived from knowledge of multiple real users. According to Nielsen’s definition, one can think of personas as condensing knowledge of user segments into a format that is memorable and evokes empathy.

The benefits of the persona method are described throughout the book. Nielsen argues that the persona method not only offers unique insights into user needs but, perhaps more importantly, provides a common language that designers and project participants can draw on when developing products and services. In this sense, personas may be thought of as a communication method: persona descriptions aim at getting all team members involved in the design process on the same page in terms of who the users are. Additionally, it allows for team members’ implicit assumptions about users to be made explicit and opens up the possibility of revealing findings that go against an organization’s pre-existing truths.

The chapters of the book explicate Nielsen’s 10-step design method, which includes the following steps:

  1. Finding the users
  2. Building a hypothesis
  3. Verification
  4. Finding patterns
  5. Constructing personas
  6. Defining situations
  7. Validation and buy-in
  8. Dissemination of knowledge
  9. Creating scenarios
  10. Ongoing development

Chapters 2 and 3 cover data collection and analysis. After a brief overview of common qualitative and quantitative methods of data collection, Nielsen describes a mode of qualitative data analysis for developing hypotheses which culminates in choosing the number of personas. The first stages of data analysis (coding and thematic analysis) are derived from grounded theory.  The next stages attempt to understand the data by comparing and contrasting the thematic units. The methods used are contrasting pairs (where user experience is plotted against two opposing variables), affinity diagrams (where the relationships between clusters of thematic groups are considered) and systems of coordinates (where categories emerge through combining relationships and contrasts into a single model). These categories form the basis for determining the number of  personas to be included, and common denominators in each category (age, education income, attitude) are included in the resulting persona descriptions.

Nielsen also covers how generalizability, reliability, and validity of the persona profiles can be assured. Generalizability is achieved through argumentation and comparison to existing material, and validity by controlling the data and asking for feedback on the interpretation. Reliability is ensured by describing the data collection and processing in an accurate and transparent way. This is particularly important when the findings are resisted within the organization. When management is given access to the analytic process, they often understand and accept the results.

Chapter 3 ends with three case studies of how the final number of personas are chosen. As Nielsen points out, secondary personas not directly derived from the data are sometimes included for strategic or political reasons. For example, in the process of developing a digital self-service solution for Borger.dk, the list of personas were expanded to include a non-Danish-speaking persona, while the persona description of another was adapted to cover users who are physically handicapped.

Chapters 4 and 5 focus on the actual writing of the persona and scenario descriptions. Whereas the earlier chapters might have come across as slightly cursory and generic, Nielsen’s experience in the field starts to shine through as the depth and applicability of the personas method become apparent. Nielsen’s approach to writing persona descriptions and scenarios is firmly rooted in narrative theory, which posits that stories and narratives are basic human strategies for coming to terms with human experience. As opposed to stereotypes, which depict users as “flat” or one-dimensional characters, and archetypes, which tend to define personality types in negative terms, the persona approach aims to create “rounded” characters who have multiple characters traits and are able to view the world from different perspectives. In order to create these rounded characters the persona method turns to fiction. Script-writing techniques are used to bring out the tension between clashing character-traits. Nielsen uses the character descriptions of “Thelma” and “Louise” to illustrate effective persona descriptions. These chapters also provide templates for persona and scenario development that clearly set out the most important narrative elements to be included in each.

“Personas in Agile” and “International Personas” are new additions to the second edition. In Chapter 6, Nielsen presents some preliminary research on how personas can be incorporated into agile software development. It is suggested that personas are helpful in creating user stories, but the short chapter does not fully consider the possible implications of bringing these two fields together. Chapter 7 considers the challenges of conducting international user research and the difficulties of avoiding cultural bias when creating the personas. International user research is difficult to coordinate and expensive to conduct and communication and cultural barriers often prevent accurate insights. In Japan, for example, the clothing brand UNIQLO is considered to be lower-end, while in the rest of East Asia the brand is a status symbol. International user research is further complicated by the opposing meanings of the term “culture” in the theoretical literature. Nielsen advocates for understanding culture as a set of practices instead of a fixed entity and notes that problems around stereotyping can be avoided by adopting this meaning.

However, because personas inevitably rely on generalizations about race, ethnicity and cultural background, stereotypical characters traits (often perceived as offensive) can inadvertently emerge. Another problem is that users of personas bring their own cultural prejudices to the interpretation of personas. This emerged clearly in a study by Salminen et al. (2018), which considered the use of contextual images in personas to counter cultural bias. Whereas more contextual images generally provided better insights, they also allowed more opportunities for misunderstandings based on cultural bias.

Chapter 8, written by Salminen et al., outlines a method for generating personas through big data analysis. Presenting the cutting edge of research in persona development, the aim of the automatic persona generation (APG) method is to make large volumes of user analytics accessible to users in the form of personas. APG analyses user analytics to create different segments, associates these segments to demographic data, and uses photos and other supplementary material to generate rich descriptions of personas without compromising the privacy of individuals users. By combining the personas method with big data, APG addresses one of the perennial problems with user analytics: how to turn data into insights about the customers.

By suggesting an automated alternative to qualitative persona development, this chapter addresses an aspect that is somewhat lacking in the rest of the book – the practical limitations of manual persona generation methods. Automated persona generation methods have distinct advantages over manual methods: they are quicker to complete, draw on large bodies of information, and can automatically update without having to complete the entire analytic procedure. At the same time, the human factor that makes the traditional persona method so effective – avoiding bias, using appropriate and non-offensive language, and creating fluent and readable narratives – remain unmatched in APG. The authors argue that the strength of each approach can be used to address the shortcomings of the other. The chapter summarizes the issues that remain unaddressed into a research agenda for future studies on APG that is suggested to have a significant impact.

Personas – User Focused Design provides a useful introduction to the persona method and its potential benefits to design organizations. The book is highly readable, gives several examples of successful and less successful persona descriptions, avoids jargon, and gives clear explanations of the key concepts and processes involved in persona development. Professionals already familiar with the technique might, however, find the content slightly limited.

Conclusion

Nielsen has made a major contribution to the understanding of user experience through personas. Her deployment of fictional character development and narrative techniques and devices in communicating personas and scenarios are particularly enlightening. However, the method is encumbered by its time-consuming nature and lack of flexibility when it comes to rapidly changing user profiles. In the fast-paced world of user sentiment analysis, the human-computer interface presents the next frontier. It remains to be seen how Nielsen’s research on narrative and fiction might be incorporated into machine learning methods for generating readable persona descriptions that arouse empathy and avoid bias and offensive language.

Is More Better?: Research Concerning the Impact of Multiple Photos on Perception of Persona Profiles

Background: We investigate if and how more photos than a single headshot can heighten the level of information provided by persona profiles. We conduct eye-tracking experiments and qualitative interviews with variations in the photos: a single headshot, a headshot and images of the persona in different contexts, and a headshot with pictures of different people representing key persona attributes. We conduct the within-subject experimental study with 29 participants. The participants were selected to reflect the staff working with news content on a daily basis and formed a diverse pool of individuals originating from 19 different countries (e.g., Egypt, Georgia, Germany, Syria, UK, USA, etc.). Continue reading “Is More Better?: Research Concerning the Impact of Multiple Photos on Perception of Persona Profiles”

Imaginary People Representing Real Numbers: Generating Data-Driven Personas Using the APG System

Using the APG system for automatic persona creation from real data is both a working system and an on-going research project. With APG, we have developed a methodology to automate the creating of imaginary people. These imaginary people are personas. We do this by processing complex behavioral and demographic data of social media audiences. Continue reading “Imaginary People Representing Real Numbers: Generating Data-Driven Personas Using the APG System”