IB Design Technology 7.4 Strategies for UCD Notes

Holistic Approach to Usability in User-Centered Design (UCD)

1. You're designing a fitness tracking app.
2. You’ve built features you think are useful, but when users test it, they struggle to navigate and abandon it in frustration.
3. What went wrong? The issue is usability—or the lack of it.
4. This is where User-Centered Design (UCD) comes in.
5. In this section, we’ll explore how UCD enhances usability, the key evaluation methods, and why engaging diverse users leads to more inclusive, effective designs.

How UCD Strategies Improve Usability

1. A highly usable product minimizes confusion and maximizes satisfaction, enabling users to achieve their goals with minimal effort.
2. Poor usability, on the other hand, can lead to frustration, errors, and even product failure.
3. UCD strategies focus on usability by:
   1. Reducing Costs and Effort: Addressing usability issues early in the design process prevents costly redesigns later.
   2. Meeting User Requirements: By involving users directly, designers can create solutions that align with real-world needs rather than assumptions.

Observation and Evaluation: Understanding Usability Through User Behavior

To design for usability, you must first understand how users interact with your product.

Field Research: Learning from Real-Life Contexts

Benefits:

1. Captures authentic user behavior.
2. Highlights contextual factors that may not emerge in controlled settings.

Limitations:

1. Time-intensive and complex to organize.
2. External variables can make findings harder to interpret.

Method of Extremes: Designing for Inclusivity

This ensures that the product remains accessible and inclusive for all users.