In programming, an if structure allows you to execute select lines of code only when specified conditions are true.
If...else Structure
In programming, an if ...else structure executes a statement based on the value of if. If the tested condition returns false, PHP allows you to specify another block of code to be executed using the else keyword. Each of these conditionally executed blocks of code is known as a branch, and each branch must be placed within braces if it contains more than one line of code.
Image Map
Areas of an image on a web page that have links to other areas of the Web. Some types of images map can have alt tags on the areas, while others must have text links.
Inheritance
A mechanism in CSS by which some values are passed down to the children of an element in the document tree. Each property defines whether it is inherited or not. It is the mechanism by which styles applied to an element are assumed by any descendant elements.
Inquiry
Inquiry is a broad category of usability evaluation methods. It is part one of the "Usability Evaluation Toolbox". With inquiry methods usability evaluators obtain information about users' likes, dislikes, needs, and understanding of the system by talking to them, observing them using the system in real work (not for the purpose of usability testing), or letting them answer questions verbally or in written form. Numerous methods exist for doing inquiries.
Iterative Design
Iterative design is a process where a web site progressively develops in a repeated cycle. Iteration is repeated revisions.