Appearance
As in the examples below, reference cards are typically one to a few pages in length. Pages are organized into one or more columns. Across the columns the reference is split into sections organized by topic. Each section contains a list of entries, with each entry containing a term and its description and usage information. Terms might include keywords, syntactic constructs, functions, methods, or macros in a computer language. In a reference card for a program with a graphical user interface, terms may include menu entries, icons or key combinations representing program actions.
Due to its logical structure and conciseness, finding information in a reference card is trivial for humans and requires no computer interaction. It is therefore convenient for a user to print out a reference card. While reference cards can be printed on card stock, it is common to print them on ordinary printer paper. With the advent of portable electronic devices that can display documents, digital reference cards stored in PDF or HTML formats have become more common. This in contrast to user guides, which tend to be large & verbose and to have a very low information density (in comparison to reference cards).
Read more about this topic: Reference Card
Famous quotes containing the word appearance:
“Most lovers ... picture to themselves, in their mistresses, a secret reality, beyond and different from what they see every day. They are in love with somebody else—their own invention. And sometimes there is a secret reality; and sometimes reality and appearance are the same. The discovery, in either case, is likely to cause a shock.”
—Aldous Huxley (1894–1963)
“The complaint ... about modern steel furniture, modern glass houses, modern red bars and modern streamlined trains and cars is that all these objets modernes, while adequate and amusing in themselves, tend to make the people who use them look dated. It is an honest criticism. The human race has done nothing much about changing its own appearance to conform to the form and texture of its appurtenances.”
—E.B. (Elwyn Brooks)
“Do not look on his appearance or on the height of his stature, because I have rejected him; for the LORD does not see as mortals see; they look on the outward appearance, but the LORD looks on the heart.”
—Bible: Hebrew, 1 Samuel 16:7.