Carter, Louisiana State University F. Uncertainties about future socioeconomic conditions as well as future climate changes can make it difficult to arrive at adaptation decisions now. However, the pace and magnitude of projected change emphasize the need to be prepared for a wide range and intensity of climate impacts in the future. Planning and managing based on the climate of the last century means that tolerances of some infrastructure and species will be exceeded.
Web Usability 4 Summary: How to define usability? How, when, and where to improve it? Why should you care? Overview defines key usability concepts and answers basic questions.
What — Definition of Usability Usability is a quality attribute that assesses how easy user interfaces are to use. The word "usability" also refers to methods for improving ease-of-use during the design process.
Usability is defined by 5 quality components: How easy is it for users to accomplish basic tasks the first time they encounter the design? Once users have learned the design, how quickly can they perform tasks? When users return to the design after a period of not using it, how easily can they reestablish proficiency?
How many errors do users make, how severe are these errors, and how easily can they recover from the errors? How pleasant is it to use the design?
There are many other important quality attributes. Does it do what users need? Usability and utility are equally important and together determine whether something is useful: If a website is difficult to use, people leave.
If users get lost on a website, they leave. Note a pattern here? There are plenty of other websites available; leaving is the first line of defense when users encounter a difficulty.
For intranets, usability is a matter of employee productivity. Time users waste being lost on your intranet or pondering difficult instructions is money you waste by paying them to be at work without getting work done.
For software and physical products, the improvements are typically smaller — but still substantial — when you emphasize usability in the design process. For internal design projects, think of doubling usability as cutting training budgets in half and doubling the number of transactions employees perform per hour.
For external designs, think of doubling sales, doubling the number of registered users or customer leads, or doubling whatever other KPI key performance indicator motivated your design project. How to Improve Usability There are many methods for studying usability, but the most basic and useful is user testing, which has 3 components: Get hold of some representative userssuch as customers for an ecommerce site or employees for an intranet in the latter case, they should work outside your department.
Ask the users to perform representative tasks with the design. Observe what the users do, where they succeed, and where they have difficulties with the user interface. Shut up and let the users do the talking.
If you help them or direct their attention to any particular part of the screen, you have contaminated the test results. Iterative design is the best way to increase the quality of user experience.
The more versions and interface ideas you test with users, the better. User testing is different from focus groupswhich are a poor way of evaluating design usability. Focus groups have a place in market research, but to evaluate interaction designs you must closely observe individual users as they perform tasks with the user interface.
Listening to what people say is misleading: When to Work on Usability Usability plays a role in each stage of the design process. The resulting need for multiple studies is one reason I recommend making individual studies fast and cheap. Here are the main steps: Before starting the new designtest the old design to identify the good parts that you should keep or emphasize, and the bad parts that give users trouble.
If you work on an intranet, read the intranet design annual to learn from other designs.11 rows · In terms of a cognitive model of writing, this external representation of relevant criteria could relieve students of having to hold in working memory "what matters" while simultaneously carrying out processing necessary for composing (Flower, ; Hayes, ).
1 Curriculum-Based Measurement Reading Fluency Probe Example 23 13 Basic Reading Skill 27 in reading and writing Grades Assessment Guidelines for Expressive Language (Speaking) First — Third Grade Procedure Regular and irregular plurals and past tenses are used correctly.
Welcome to the U.S. Department of Education’s Individuals with Disabilities Education Act (IDEA) website, which brings together IDEA information and resources from the Department and our grantees.
Scribd is the world's largest social reading and publishing site. The correct interpretation and application of published assessment criteria is essential to providing reliable response outcomes that will accurately reflect efficacy and will stand up to scrutiny by regulators.
Let our medical imaging team guide you to the right response assessment. Past, Present and Future; USABLE CRITERIA TO EVALUATE. Welcome to CPARS. CPARS hosts a suite of web-enabled applications that are used to document contractor and grantee performance information that is required by Federal Regulations.