Monday, June 14, 2010

Ex2 Feature Hierarchy in Visual Searches

Analysis of an Elevator Control Panel

















To start off, the elevator control panel is organized into three main colors, black, white, and gold and also a single color, orange. The black and white is used to differentiate the labels from the buttons. Black being the label and white being the the button. The gold indicates characters of numbers, letters, symbols, and braille. To the bottom, right hand side lies a single, orange label separating it from the rest of the buttons on the panel. This "pop-out" effect gives it special attention. The second visual channel feature are the rectangular and square shapes. Individual squares represent the label and the other represents the button while being embodied in a rectangular shape. Users can figure out which button goes to which floor being adjacent to its designated label. The hierarchical order of characters is bottom to top, and left to right, larger numbers being at the top and smaller numbers at the bottom. This position plays well because it is parallel to the actual floor levels. Larger numbers correspond to higher floor levels. Despite the order of left to right which might mistake the panel as a horizontal, it is actually vertical. Because the colors are organized in columns of black, white, black, white, etc. instead of rows, this gives the panel a vertical theme. The least used buttons, emergency alarm and the stop button, are taken out and grouped together at the very bottom. Users starting out at the Lobby Level (L) will first see where the "L" button is located and then move their eyes naturally upwards to find their floor level. Next, they will notice the order of numbers is from left to right. They know not to push the actual gold characters because of the square, white button next to it.



Analysis of Parisian Metro Transit Map






















Each subway line is unique to its own color. Red is for the "A" lines, Blue is for "B" lines", and so forth. The legend is located at the bottom, left side of the map where the user can figure out which color belongs to which line. The small, white dots within the line represent the stops. To show each intersection of crossovers from one line to the next are white ovals and circles outlined in black. The overall layout is shaped into an octagon which is then organized into layers of octagons. There are 6 layers, the first layer being the innermost part of Paris to the sixth being the outermost part of Paris. The layers are in a pattern of darker tan and lighter tan so that it is easier to differentiate each one. Also, the neutral color of the background makes it easier to see the map lines. Using the organization of the map users can quickly find their way around Paris by just figuring out their starting point and their ending point, then tracing the line that connects them both. The designer of the map especially made the a lot of space in the map so that it looks clean and it is easy to read.

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