Function Allocation. Function allocation (also known as task allocation) is a classic human factors method for deciding whether a particular function will be accomplished by a person, technology (hardware or software) or some mix of person and technology.
perpendicular - a straight line at right angles to another line straight line - a line traced by a point traveling in a constant direction; a line of zero curvature; the shortest distance between two points is a straight line 2. perpendicular - a Gothic style in 14th and 15th century England; characterized by vertical lines and a four-centered (Tudor) arch and fan vaulting
perpendicular. 1  at right angles to a given plane or line. 2  exactly upright; vertical; straight up or down. 3  very steep. 4  of or designating the third and latest style of English Gothic architecture of the 14th to the 16th cent., characterized by vertical lines in its tracery.oun. 1  Mathematics A line or plane perpendicular to a given line or plane. 2  A perpendicular position. 3  A device, such as a plumb line, that is used in marking the vertical from a given point.