1 Topsoil is also sold in bags, at $2-$5 a bag. 2  It takes roughly 18-20 bags to make a cubic yard, or $36-$100. 3  That works out to about $180-$500 for five yards; typically, bags of topsoil are only used for extremely small areas.
The system metaphor is one of the trickier parts of XP (Extreme Programming). This presentation is from a tutorial taught at several of the early agile conferences, and includes material supporting the exercises. CC-BY-SA. Published in: Technology, Entertainment & Humor.
A visual metaphor, also called a pictorial metaphor, is a metaphor in which something (the metaphor's target) that is presented visually is compared.