$1.$ A usability dimension concerned with how difficult it is for the user to perform a task for the first time. a$.$ Usability b$.$ Learnability c$.$ Efficiency d$.$ Memorability $2.$ A Web design approach that separates content from the way in which it is formatted and presented, making ongoing maintenance easier and site$-$wide consistency much higher. a$.$ Wireframe b$.$ Stylesheet$-$based HTML c$.$ Prototype d$.$ Report $3.$ A simple design to show the placement of information ele$-$ments on a screen and the space needed for each element. a$.$ Wireframe b$.$ Stylesheet$-$based HTML c$.$ Prototype d$.$ Report $4.$ An overall evaluation of how a system performs in sup$-$porting a particular user for a particular task. a$.$ Usability b$.$ Learnability c$.$ Efficiency d$.$ Memorability $5.$ A usability dimension concerned with how quickly users can perform tasks once they know how to perform them. a$.$ Learnability b$.$ Usability c$.$ Efficiency d$.$ Memorability $6.$ A business document that contains only predefined data; it is a passive document used only for reading or viewing. It typically contains data from many unrelated records or transactions. a$.$ Stylesheet$-$based HTML b$.$ Wireframe c$.$ Prototype d$.$ Report $7.$ A design approach that involves an understanding of the target audience such as their tasks, goals, informa$-$tion needs, and experience levels. a$.$ Stylesheet$-$based HTML b$.$ Wireframe c$.$ Prototype d$.$ User eXperience $($UX$)$ design $8.$ A usability dimension concerned with how many errors a user might encounter and how easy it is to recover from those errors. a$.$ Learnability c$.$ Error rate b$.$ Usability d$.$ Efficiency