Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Study Designs in Epidemiology01:20

Study Designs in Epidemiology

1.0K
Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
1.0K
Study Design in Statistics01:15

Study Design in Statistics

10.0K
A study design is a set of techniques that allow a researcher to collect and analyze data from different variables defined for a specific research problem. Statistics is commonly for effective study design and more robust experiments,
Does aspirin reduce the risk of heart attacks? Is one brand of fertilizer more effective at growing roses than another? Is fatigue as dangerous to a driver as the influence of alcohol? Questions like these are answered using randomized experiments with proper...
10.0K
Pilot and Numeric Relaying01:21

Pilot and Numeric Relaying

492
Pilot relaying is a type of differential protection used in power systems. It compares electrical quantities at the terminals of equipment via a communication channel instead of direct relay interconnection. This method is essential for transmission lines where the terminals are far apart, typically up to 80 km for lines with 69 to 115 kV ratings. Four types of communication channels are used for pilot relaying:
492
Group Design02:01

Group Design

10.5K
The most basic experimental design involves two groups: the experimental group and the control group. The two groups are designed to be the same except for one difference— experimental manipulation. The experimental group gets the experimental manipulation—that is, the treatment or variable being tested—and the control group does not. Since experimental manipulation is the only difference between the experimental and control groups, we can be sure that any differences between...
10.5K
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device01:30

Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device

410
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
410
Bioavailability Study Design: Single Versus Multiple Dose Studies01:11

Bioavailability Study Design: Single Versus Multiple Dose Studies

244
Bioavailability studies are essential for understanding how a drug is absorbed, distributed, metabolized, and excreted in the body. These studies assess the extent and rate at which the active pharmaceutical agent becomes available at the site of action. The design of bioavailability studies can involve single-dose or multiple-dose regimens, each with distinct advantages and limitations.Single-dose studies are the preferred approach due to their simplicity and reduced drug exposure for...
244

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A Design Contribution to Ergonomic PC Mice Development.

International journal of environmental research and public health·2022
Same author

Usability Evaluation of Slanted Computer Mice.

International journal of environmental research and public health·2021
Same author

Gender differences in associating musculoskeletal complaints, housework, electronic device usage and physical exercise for administrative workers.

International journal of occupational safety and ergonomics : JOSE·2021
Same author

Dynamics of forearm muscle activity in slanted computer mice use.

Work (Reading, Mass.)·2020
Same author

Psychosocial and ergonomic survey of office and field jobs in a utility company.

International journal of occupational safety and ergonomics : JOSE·2017
Same author

Working conditions under multiple exposures: A cross-sectional study of private sector administrative workers.

Work (Reading, Mass.)·2015

Related Experiment Video

Updated: Feb 5, 2026

Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis
07:51

Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis

Published on: September 26, 2018

8.1K

A tentative efficiency index for pointing device use in computer aided design: A pilot study.

Denis A Coelho1,2, Miguel L Lourenço2,3

  • 1Human Technology Group, Department of Electromechanical Engineering, Universidade da Beira Interior (UBI), Covilhã, Portugal.

Work (Reading, Mass.)
|September 19, 2018
PubMed
Summary

A new efficiency index for 3D CAD pointing devices shows the standard horizontal mouse and a slanted device are more efficient than a vertical mouse. This index helps rank device performance for computer-aided design tasks.

Keywords:
EffectivenessPC mouseperformanceusability

More Related Videos

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
07:30

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

Published on: August 18, 2020

7.8K
Automated Robotic Liquid Handling Assembly of Modular DNA Devices
11:22

Automated Robotic Liquid Handling Assembly of Modular DNA Devices

Published on: December 1, 2017

12.9K

Related Experiment Videos

Last Updated: Feb 5, 2026

Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis
07:51

Hydra, a Computer-Based Platform for Aiding Clinicians in Cardiovascular Analysis and Diagnosis

Published on: September 26, 2018

8.1K
Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
07:30

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

Published on: August 18, 2020

7.8K
Automated Robotic Liquid Handling Assembly of Modular DNA Devices
11:22

Automated Robotic Liquid Handling Assembly of Modular DNA Devices

Published on: December 1, 2017

12.9K

Area of Science:

  • Human-Computer Interaction
  • Ergonomics
  • Computer-Aided Design (CAD)

Background:

  • Evaluating computer pointing device usability is crucial for efficient 3D CAD.
  • A novel, empirically derived efficiency index for 3D CAD pointing devices was developed.
  • This study focuses on the efficiency aspect of usability for 3D CAD operations.

Purpose of the Study:

  • To compare the efficiency and usability of three different computer pointing devices.
  • To assess the performance of a standard horizontal mouse, a vertical mouse, and a slanted mouse in 3D CAD.
  • To validate a new efficiency index for pointing devices in 3D CAD environments.

Main Methods:

  • Structured observations of 20 users performing standardized pointing, dragging, and steering tasks in 3D CAD.
  • Calculation of an efficiency index based on operation proportions.
  • Subjective assessments of discomfort, effort, and ease of use were collected.

Main Results:

  • The vertical device exhibited a lower mean efficiency index compared to horizontal and slanted devices.
  • Subjective feedback indicated a preference for horizontal and slanted devices due to lower discomfort and effort.
  • The results provide preliminary internal validation for the developed efficiency index.

Conclusions:

  • The tentative efficiency index shows potential for validly ranking the performance of alternative pointing devices in 3D CAD.
  • The findings suggest that device design significantly impacts user efficiency and comfort in 3D CAD.
  • Further research can refine the index for broader application in usability studies.