That is, individuals and organizations tend to resist changing their course until powerful external factors compel them to do so.

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An external examiner who judged that a university course had not reached the necessary standard was persuaded to change her mind.

BBC: Moves to tighten degree scrutiny

Sighting in a target through the scope of a high-caliber rifle can be a bit more complicated than it sounds -- snipers have to account for cross-winds, range and a whole host of external factors that could put their projectile off course.

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He says the school uses a board of external business advisers to constantly give feedback on the MBA course curriculum.

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Of course, all this does not mean dynasties can afford to ignore external trends.

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Of course, it would be a snap to simply design cell phones with plugs for external digital cameras.

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Of course, the aforementioned remote should prove trickiest to find, as the current models lack that crucial external receiver to account for the built-in version found in the slim PS2 units.

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