It is the specificity and detail of personas that gives them their value.A real and useful persona should answer each of the following questions with a 'Yes'.
- Alan Cooper
P-E-R-S-O-N-A: Primary research, Empathy, Realistic, Singular, Objectives, Number, Applicable.
- Primary research: Is the persona based on contextual interviews with real customers?
Every key element of your persona should be traceable to observations and interviews in the real sites. - Empathy: Does the persona evoke empathy by including a name, a photograph and a product-relevant narrative?
A good persona has an engaging story to help designers relate to the persona. - Realistic: Does the persona appear realistic to people who deal with customers day-to-day?
Send your persona to front-line staff, customer support and the sales team, to check if they can recognise someone and believe in the persona. - Singular: Is each persona unique, having little in common with other personas?
Each of the personas in your set should comprise a unique cluster of behaviours, motivations and goals. - Objectives: Does the persona include product-relevant right-level goals and include a quotation stating the key goal?
Pitch yours goals at the right level by putting the most important goal in a brief quotation. Capture the user's goal and provides an appropriate design target at the same time. - Number: Is the number of personas small enough for the design team to remember the name of each one, with one of the personas identified as primary?
A Forrester survey of consultancies showed that firms created around four personas per project (and these were based on an average of 21 user interviews per project). - Applicable: Can the development team use the persona as a practical tool to make design decisions?
Your persona should focus on behaviours, motivations and goals rather than demographics.
角色模型需聚焦於產品使用行為、動機與目標，並結合照片與姓名，塑造成一個個獨特且引人入勝的情境劇本。將當前的目標轉化為簡短的「引言」，以兼顧描繪使用者與強調設計重點的目的。角色模型中所有的元素皆需來自真實情境的訪談，21個訪談內容約可建立4組角色模型，並擇一作為主要的模型。完成之後，需將模型交由與使用者互動的第一線人員，確認其內容的可信度。
(Source: How to create personas your design team will believe in by David Travis)
