IB Design Technology 7.3.2 Principles of User Research Strategies Notes

Understanding User Population, Personas, and Scenarios in Design Research

Imagine you’re tasked with designing a smartwatch. Who will use it? A teenager tracking workouts? A busy professional managing notifications? A senior citizen monitoring health metrics? Each group has unique needs, and understanding these differences is vital to creating a product that truly works for its users. This is where user research strategies such as classifying user populations, developing personas, and constructing scenarios become powerful tools for designers. Let’s explore these concepts step by step.

Classifying the User Population

What is a User Population?

The user population refers to the group of people expected to use a product, system, or service. This group is not random, it is defined by shared characteristics or goals that influence how they interact with a design. For example, the user population for a children’s educational app might include young learners aged 5–10 years, while an ergonomic office chair might target working adults with desk jobs.

Key Classification Criteria

To understand the user population, designers classify users based on demographic, physical, and psychological factors. Common criteria include:

• Age: Different age groups have varying abilities, preferences, and limitations. For instance, children might prefer bright colors and intuitive interfaces, while older adults may require larger text and simplified navigation.
• Gender: Products like apparel or grooming items are often tailored for male, female, or gender-neutral preferences.
• Physical Condition: Inclusive design considers users with disabilities, such as wheelchair users or individuals with visual impairments.
• Ethnicity and Culture: Cultural norms and traditions can shape user expectations. For example, color symbolism (e.g., red for luck in Chinese culture) may influence design decisions.
• Handedness: Products like scissors or gaming controllers must cater to both right-handed and left-handed users.
• Shared Goals or Needs: Beyond demographics, users are often grouped by common objectives. For example, fitness enthusiasts might share a need for wearable devices that track physical activity.

Personas in Design Research

What Are Personas?

Personas are fictional but research-based representations of user groups. They encapsulate the behaviors, needs, and goals of a typical user within a population. While personas are not real individuals, they are grounded in data gathered from field research, interviews, and observations. This ensures they reflect actual user experiences rather than hypothetical assumptions.

Types of Personas

1. Primary Persona: Represents the key target user group whose needs are the primary focus of the design. For instance, in designing a smartwatch, the primary persona might be a tech-savvy, fitness-conscious adult.