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 Lines and Intersecting Lines. In case of a two dimensional plane, two intersecting lines are said to be perpendicular lines if they intersect at right angles. In three dimensional space, if two lines are perpendicular, the dot product of their direction rations is zero. It is to be noted that the perpendicular lines need not intersect.