The keystroke‐level model (KLM) is the simplest model of the goals, operators, methods,
and selection rules (GOMS) family. The KLM computes formative quantitative predictions of …

In the early days of personal computing, a model called" Goals, Operators, Methods, and
Selection Rules"(GOMS) provided a method with which to quantify user interaction with a …

The growing popularity of gaming applications and ever-faster mobile carrier networks have
called attention to an intriguing issue that is closely related to command input performance …

One of the most useful tools in human-computer interaction is the task model, a structured
decomposition of user actions toward a goal. Task models can predict average human …

This article summarizes several databases (aka predetermined time systems) that provide
estimated times for task elements (eg, reach, move a mouse, make a specific decision, make …

The keystroke-level model (KLM) is commonly used to predict the time it will take an expert
user to accomplish a task without errors when using an interactive system. The KLM was …

In recent years, we have witnessed an exponential growth in the use wearable and Internet
of Things devices to provide friendly and tangible interfaces for ubiquitous services. The …

The number of applications available for mobile phones is growing at a rate that makes it
difficult for new application developers to establish the current state-of-the-art before …

The design and development of security mechanisms, such as authentication, requires
analysis techniques that take into account usability along with security. Although techniques …

Assessing usability of device types with novel function sets that are adopted by diverse user
groups requires one to explore a variety of approaches. In this paper, we develop such an …