'''Scenario Planning Strategy''' is a systematic and methodical way for organisations to define their future actions. It is considered as part of the <span class="plainlinks">[https://en.wikipedia.org/wiki/Strategic_management Strategic management]</span> tools, aiming to create a flexible plan, based on which the organisation will benefit in the long term. Scenario planning came to change and enchance the way of thinking in terms of  <span class="plainlinks">[https://en.wikipedia.org/wiki/Decision-making decision making]</span>  under uncertain cirumstancies. According to Pierre Wack "''Scenarios deal with two worlds; the world of facts and the world of perceptions''" <ref name="econo">.The Economist, "''Scenario planning''". Online article [URL: http://www.economist.com/node/12000755]</ref>. The known and the unknown are mixed and a set of different possible scenarios for a particular issue is formed following people's both subjective and objective thoughts regarding how the social, technical, economic, environmental and political (STEEP) trends are going to affect it.