Building Effective User Personas for Product Design

Author Chen Jiong, a senior system integration project manager and quality manager at a large state-owned bank, shares his extensive experience in IT project management and agile transformation.

He likens the popular campus saying “avoid fire, wolves, and senior brothers” to the skillful use of user personas in product development, describing how a “senior brother” gathers detailed information about a “sister” before courting, just as product teams gather comprehensive data about users.

In product development, building accurate user personas is essential for designing products that satisfy user needs. Unlike targeting a single individual, personas capture common characteristics of a user group, effectively “tagging” the audience.

The example persona for a mobile game shows that the game should be operable with one hand and have short sessions—ideally around three minutes—to fit users’ commuting and bathroom breaks.

Creating a persona involves three main steps:

1. Information Collection : Gather data from surveys, interviews, statistics, and reports (first‑hand and second‑hand sources).

2. Analysis & Modeling : Perform statistical analysis (e.g., keyword extraction from interviews) and build models that categorize users by basic attributes, social relationships, spending power, behavior, and psychology.

3. Bidirectional Validation : Verify that the model reflects reality and that reality is captured in the model, focusing on accuracy and completeness.

The goal of a user persona is to provide actionable insights for product design and operation. If a persona cannot guide design decisions or strategic planning, it is considered a failure. Common pitfalls include assuming oneself as the user and trying to satisfy everyone, which leads to unfocused products.

Understanding and applying user‑centred thinking not only benefits product design but also helps R&D teams collaborate more effectively with business stakeholders.