QUESTION 5

MODEL: Generally, model can be defined as something three dimensional, typically small constructions intended to illustrate, explain, or discover certain properties of its prototype and the subject that it represents. The more scientific definition is briefly may be like that: the formal representation of the notions that we have about a phenomenon or subject. Thus, while the notions may be familiar with the workings of a market or an economy, the formal representation of this in an abstract model is new relatively.

SNOWBALL EFFECT: Snowball effect is a figurative expression and can be defined as starting from beginning because of an unimportant reason and come to a very large extent or a very serious state like avalanche that can be started with a really small, tiny snowball and become very huge, devastating and dangerous. All problems start because of an insignificant subject and some of them come to a really serious state as we encounter in normal life. Maybe we should take some advice from this as “do not give the reason to avalanche”, “take the precaution before the avalanche started” or lastly “do not let the pebble to cause an avalanche”.

WATERFALL DIAGRAM: A waterfall diagram is a chart that is used to explain something like process more easily by using concepts, data and phenomenon, and so forth, relevant to the subject in accordance between them. Flowchart is the general name of the charts like this. Waterfall diagrams are the ones resemble to a waterfall.

References:http://en.wikipedia.org/wiki/Snowball_effect
http://www.iienet2.org/Details.aspx?id=2480
http://en.wikipedia.org/wiki/Waterfall_model