I believe its hard to understand the economy behind the IT firm. comparing IT with steel firm is easy as we know that when economy is prospering demand of steel goes up (cars, infrastructures, buildings etc) but no can can say same about IT, in the times of depression these companies specially small cap companies can wipe out. their order reserves will dry out in months.
When We listen to quarterly discloses of companies we hear mostly about revenue growth x% this X% that, a security analyst need to understand the economy of the businesses rather then the numbers, like who are their clients, what are the chances that company will keep getting orders from his clients or make new clients, we need to consider the concept of Moat. we know if world govt closes every stock market for 10 years, coca cola will survive, oil companies will, steel companies will(good ones). but we cannot say same about and IT firm.