Evaluate how people and systems perform together
HF Designworks helps organizations evaluate how people interact with products, systems, automation, and operational environments.
We design and conduct human-in-the-loop and usability studies to identify performance risks, uncover usability problems, measure workload, and determine whether a system supports people in completing critical tasks safely and effectively.
Defense & Government - UAS & Autonomy - Medical & Health - Complex Technologies
Test the System With the People Who Will Use It
A system can meet its technical requirements and still fail to support the people operating it. Human-in-the-loop testing brings representative users into the evaluation process so teams can understand how the full human-system relationship performs under realistic conditions.
We look beyond whether users can complete a task. We evaluate factors such as:
Task performance and errors
Workload
Situation awareness
Decision-making
Information use
Interaction with automation
Workflow efficiency
Usability
User confidence
Mission or operational effectiveness
The goal is to identify issues early enough to improve the system before they become expensive, disruptive, or safety-critical.
How We Can Help
Human-in-the-Loop Evaluation
Evaluate people interacting with representative systems, prototypes, simulations, or operational environments to understand overall human-system performance.
Usability Testing
Identify where users encounter confusion, inefficiency, error, or unnecessary effort while completing representative tasks.
Performance Measurement
Measure how effectively people complete tasks using indicators such as accuracy, completion time, error rates, decision quality, and task success.
Workload Assessment
Assess cognitive and operational workload to understand where system demands may exceed human capacity or create unnecessary burden.
Comparative Testing
Compare alternative designs, workflows, automation concepts, or system configurations using consistent tasks and performance measures.
Validation & Verification Support
Develop evidence showing whether human-related requirements, usability goals, or performance objectives have been achieved.
When appropriate, HF Designworks can also incorporate FortiFly to support continuous workload assessment during testing and simulation. Combining these measures helps explain not only what happened, but why.
Why HF Designworks
01
Evaluate more than usability
We look beyond task completion to assess workload, decision-making, error, situation awareness, and operational performance—giving teams a fuller picture of how the human-system relationship is actually working.
02
Test under realistic conditions
We design evaluations around representative users, tasks, scenarios, and system demands so findings reflect the conditions that matter in real-world use.
03
Combine multiple measures to explain performance
We integrate behavioral, subjective, and performance data—and, when appropriate, can also leverage real-time workload assessment via FortiFly to understand not just what happened, but why.
04
Turn findings into actionable improvements
Our testing is designed to inform design, requirements, automation, workflows, training, and future development rather than simply produce a list of usability issues.