 |
This article may need to be wikified to meet Wikipedia's quality standards. Please help by adding relevant internal links, or by improving the article's layout. (September 2008) |
Personas are fictional characters created to represent the different user types within a targeted demographic that might use a site or product. Personas are useful in considering the goals, desires, and limitations of the users in order to help to guide decisions about a product, such as features, interactions, and visual design. Personas are most often used as part of a user-centered design process for designing software and are also considered a part of interaction design (IxD), have been used in industrial design and more recently for online marketing purposes.[1]
A user persona is a representation of the goals and behavior of a real group of users. In most cases, personas are synthesized from data collected from interviews with users. They are captured in 1–2 page descriptions that include behavior patterns, goals, skills, attitudes, and environment, with a few fictional personal details to make the persona a realistic character. For each product, more than one persona is usually created, but one persona should always be the primary focus for the design.
The use of personas as a technique was popularized by Alan Cooper in his 1999 book The Inmates are Running the Asylum. The book outlines the general characteristics, uses, and best practices for creating personas.[2]
Contents |
Benefits
According to Pruitt and Adlin (2006),[3] the use of personas offers several benefits in product development (cf. Grudin and Pruitt, 2002; Cooper, 1999). Personas are said to be cognitively compelling because they put a personal human face on otherwise abstract data about customers. By thinking about the needs of a fictional persona, designers may be better able to infer what a real person might need. Such inference may assist with brainstorming, use case specification, and features definition. Pruitt and Adlin argue that personas are easy to communicate to engineering teams and thus allow engineers, developers, and others to absorb customer data in a palatable format. They present several examples of personas used for purposes of communication in various development projects. [3]
Personas also help prevent some common design pitfalls which may otherwise be easy to fall into. The first is designing for what Cooper calls "The Elastic User" — by which he means that while making product decisions different stakeholders may define the 'user' according to their convenience. Defining personas helps the team have a shared understanding of the real users in terms of their goals, capabilities and contexts. Personas also help prevent "self referential design" when the designer or developer may unconsciously project their own mental models on the product design which may be very different from that of the target user population. Personas also provide a reality check by helping designers keep the focus of the design on cases that are most likely to be encountered for the target users and not on edge cases which usually won't happen for the target population. According to Cooper, edge cases which should naturally be handled properly should not become the design focus (Cooper, 1999).
The benefits are summarized as (Cooper, 1999):
- Help team members share a specific, consistent understanding of various audience groups. Data about the groups can be put in a proper context and can be understood and remembered in coherent stories.
- Proposed solutions can be guided by how well they meet the needs of individual user personas. Features can be prioritized based on how well they address the needs of one or more personas.
- Provide a human "face" so as to focus empathy on the persons represented by the demographics.
Personas based upon ethnographic research
Some designers feel that personas should be based on ethnographic research into users and should not be based purely on the creator's imagination. The use of ethnographic research helps the creation of a number of archetype users that can be used to develop products that deliver positive user experiences. By feeding in real data, ethnographic research allows design teams to avoid generating stereotypical users that may bear no relation to the actual user’s reality.
Criticism
Criticism of personas falls into three general categories: analysis of the underlying logic, concerns about practical implementation, and empirical results (cf. Chapman and Milham, 2006[4]; Rönkkö, 2005).
In terms of logic, it has been argued that because personas are fictional, they have no clear relationship to real customer data and therefore any data gathered cannot be considered scientific. Chapman & Milham (2006)[4] have described the purported flaws in considering personas as a scientific research method. They argued that there is no procedure to work reliably from given data to specific personas, and thus such a process is not subject to the scientific method of reproducible research.
For practical implementation, Portigal (2008) has claimed that personas give a "cloak of smug customer-centricity" while actually distancing a team from engagement with real users and their needs. He argued that real-world stories and customer immersion would better serve designers to understand the needs of users.
In empirical results, the research to date has offered soft metrics for the success of personas, such as anecdotal feedback from stakeholders. Rönkkö (2005) has described how team politics and other organizational issues led to limitations of the personas method in one set of projects. Chapman, Love, Milham, Elrif, and Alford (2008[5]) have demonstrated with survey data that descriptions with more than a few attributes (e.g., such as a persona) are likely to describe very few if any real people. They argued that personas cannot be assumed to be descriptive of actual customers.
More recent empirical research conducted by Long (2009)[6] produced objective evidence to support the key claims made by Cooper, Pruitt et al. for using personas. In a controlled experiment a group of students were asked to solve a design brief, some used personas while the control group did not. The findings showed that students using personas produced designs with better usability attributes than the students that did not use personas - thereby answering one of Chapman and Milham’s key concerns. The study also suggests that using personas can improve communication between design teams and facilitate more constructive and user-focused design discussion.
References
- ^ Using personas and social psychology theories in online marketing campaigns to increase conversion
- ^ Cooper, Alan. The Inmates are Running the Asylum. SAMS, 1999. ISBN 0-672-31649-8
- ^ a b Pruitt, John & Adlin, Tamara. The Persona Lifecycle : Keeping People in Mind Throughout Product Design. Morgan Kaufmann, 2006. ISBN 0-12-566251-3
- ^ a b Chapman, C.N. & Milham, R. The personas' new clothes. Human Factors and Ergonomics Society (HFES) 2006, San Francisco, CA. October 2006. [1]
- ^ Chapman, C.N., Love, E., Milham, R.P., ElRif, P., and Alford, J.L. (2008). Quantitative evaluation of personas as information. Proceedings of the Human Factors and Ergonomics Society 52nd Annual Meeting, New York, NY, September 2008, pp. 1107-1111. [2]
- ^ Long, F. 'Real or Imaginary: The Effectiveness of using Personas in Product Design'. Proceedings of the Irish Ergonomics Society Annual Conference, May 2009, pp1-10 Dublin. [3]
Bibliography
- Carroll, John M. Making Use: Scenario-Based Design of Human-Computer Interactions. MIT Press, 2000. ISBN 0-262-03279-1
- Carroll, J.M. ed. Scenario-Based Design: Envisioning Work and Technology in System Development. Wiley, 1995. ISBN 0-471-07659-7
- Chapman, C.N., Love, E., Milham, R.P., ElRif, P. and Alford, J.L. Quantitative evaluation of personas as information. Paper presented at Human Factors and Ergonomics Society 52nd Annual Meeting, New York, NY, September 2008.
- Grudin, J. and Pruitt, J. Personas, participatory design and product development: an infrastructure for engagement. Paper presented at Participatory Design Conference 2002, Malmo, Sweden. June 2002.
- Portigal, S. Persona non grata. interactions, Jan/Feb 2008.
- Rönkkö, K. An empirical study demonstrating how different design constraints, project organization, and contexts limited the utility of personas. Hawaii International Conference on System Sciences (HICSS) 2005, Waikoloa, HI, USA. January 2005.
- Nielsen, L. Engaging Personas and Narrative Scenarios. Samfundslitteratur, PhD-Series. 2004. [4]
- Long,F. Real or Imaginary: The Effectiveness of using Personas in Product Design. Proceedings of the Irish Ergonomics Society Annual Conference, May 2009, pp1-10 Dublin.
See also
 |
Look up persona (marketing) in Wiktionary, the free dictionary. |
External links
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
