Device and method for evaluating usability of a system by simulating the interaction between a user and the system

Simple SummaryContent extracted from patent full text and abstract with AI.

This patent introduces a device and method for evaluating the usability of interactive systems (like GUIs or voice assistants) by automatically simulating interactions between a user and the system. Using detailed models of user behavior and system responses, the invention employs probabilistic and rule-based approaches to simulate realistic user actions, including errors, and then analyzes these simulated interactions to derive quantitative usability metrics and profiles.

Use CasesContent extracted from patent full text and abstract with AI.

• Designers of consumer electronics (e.g., smart TVs, smart home devices) can use the system to automatically assess and improve interface usability before launch.
• Developers of software applications, such as mobile apps or desktop software, can simulate user journeys and uncover potential usability issues early.
• Researchers in human-computer interaction can use the tool to systematically study how different user types interact with various systems under controlled, simulated conditions.
• Voice user interface and chatbot designers can simulate dialogues to predict user performance and satisfaction.
• Quality assurance teams can use the method to automate usability testing, reducing reliance on costly user studies.

BenefitsContent extracted from patent full text and abstract with AI.

• Significantly reduces the cost and resources required for usability evaluation compared to traditional user studies.
• Allows for early detection and diagnosis of usability problems in the design phase, enabling more rapid iteration and improvement.
• Provides quantitative, systematic, and repeatable usability metrics which are less subject to human bias.
• Simulates a wide variety of user behaviors, including error-prone or novice actions, to ensure more robust system design.
• Easily extendable architecture allows for continuous improvement and the addition of specific usability evaluation rules without major redesign.

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Patent Abstract

A usability evaluation processing system and method for evaluating usability by simulation of an interaction between a user and a system to be evaluated, the usability evaluation processing system comprising a user behavior model unit, a system to be evaluated model unit, an automatic testing unit connected to the user behavior model unit and the system model unit, and an evaluation unit connected to the automatic testing unit, wherein a probabilistic model through a state chart given by the system is used for the user behavior model.