Against Non-Standard Link Colors

User tasks are carried out faster and better with sites that use standard link colors as opposed to non-standard.

Bohmann, Kristoffer. Bohmann Usability (2000). Design>Web Design>Usability>Color

Calculating Usability Effects

Time to complete a task and number of errors per task are key metrics when evaluating usability effects.

Bohmann, Kristoffer. Bohmann Usability (2000). Articles>Usability

E-Mail Notifications: Making Unsubscription Easy

Unsubscribing email newsletters and other email notification services can be an unpleasant and time-consuming experience. Most unsubscribe problems can be avoided by making the subscribers email visible and linking to an unsubscribe page in all emails.

Bohmann, Kristoffer. Bohmann Usability (2001). Articles>Usability>Email

Effective Search Results

Search result pages must make information easy to find and present results in a format that is easy to use.

Bohmann, Kristoffer. Bohmann Usability (2000). Design>Web Design>Usability>Search

Making URLs Predictable

URLs that are easy to predict make it easier for users to type in a URL and link to pages.

Bohmann, Kristoffer. Bohmann Usability (2000). Design>Web Design>Usability

Navbars: Why Drill-Down Menus are Harmful

Drill-down menus make interaction more difficult, destroy the user's overview, and poor wording make users give up using the site.

Bohmann, Kristoffer. Bohmann Usability (2001). Design>Web Design>Usability>DHTML

Response Time Still Matters

Slow response time remain an issue on the Web even for users with high-speed Internet connections.

Bohmann, Kristoffer. Bohmann Usability (2001). Design>Web Design>Usability

Site Comment: Yellow Page Search on Krak.dk

Too many required choices, too much mouse moving, too weak words, and less obvious options make address search hard on Krak.dk.

Bohmann, Kristoffer. Bohmann Usability (2000). Design>Web Design>Usability>Forms

Twenty Tasks in E-Commerce

Suggested tasks for testing of ecommerce sites such as compare product features for products A and B.

Bohmann, Kristoffer. Bohmann Usability (2000). Design>Web Design>Usability>E Commerce

Usability Problems to Fix Today

List of common usability problems that are easy to fix on most well-organized small- and mid-sized websites.

Bohmann, Kristoffer. Bohmann Usability (2000). Design>Web Design>Usability

Useful Features are Not Always Usable

Differences between useful and usable features are discussed and a brief usability framework is presented.

Bohmann, Kristoffer. Bohmann Usability (2000). Design>Usability

User Performance Metrics

Thirty user performance metrics for informal usability evaluations.

Bohmann, Kristoffer. Bohmann Usability (2000). Articles>Usability>Statistics

Valuing Usability Programs

Assume that a website has 10.000 users per month each performing 10 tasks in the period. What will be the economic effect of a usability study that promises 40 seconds faster user task performance? One way to make the calculation is shown in this article.

Bohmann, Kristoffer. Bohmann Usability (2000). Articles>Usability

Weblogs Enable User-Centric Sites

Weblogs give users information from multiple sources in one page.

Bohmann, Kristoffer. Bohmann Usability (2000). Articles>Web Design>User Centered Design>Blogging

Why Primary Navigation Must Die

Users mainly ignore primary navigation bars because the information featured is less relevant to their tasks.

Bohmann, Kristoffer. Bohmann Usability (2000). Design>Web Design>Information Design