earn how to use the system. The fourth characteristic, error frequency and severity, is measured by the number and severity of errors that users make using the system, and how easy is it for the user to recover from these errors. Finally, subjective satisfaction measures how much the user enjoys using the system. Both utility and usability of a system, along with all their characteristics, determine the usefulness of a system. *Insert excel matrix sheet here* C3. Description of Attributes Measured The previous table showed how we ranked the four sites and this section will describe the specific criteria that went into the separate groups of attributes we ranked. We selected seven main attributes, or rather groups of attributes, which we used to describe the websites we evaluated. Each group of attributes contain several specific and unique characteristics which are all closely related to each other. When selecting our groups of attributes, we considered the list of attributes picked for last semesters evaluation of laptop websites. We determined which of those attributes were imperative to an evaluation of travel websites, and then determined if any other characteristics needed to be added to a group of attributes, or if any of the attributes could be consolidated into another group.Our first group of attributes we chose included Ease of Use/ Usability/ Navigability/ Site Map. We defined ease of use along with navigability as how easy it was to navigate the website, including moving forward and back from page to page and window to window, as well as using hyperlinks, scroll bars, and shortcuts. Specifically, we used our previous definition of usability, including its five characteristics: ease of learning, efficiency of use, memorability, error frequency and severity, and subjective satisfaction. For the site map, the first thing we investigated was whether or not the website had one, and if so, was it clear and did it have hy...
