What to Focus On When Investing in Tech: Back to the Basic

There are many noises every day on TMT - news reporters, tech websites, company product release, broker reports etc, coupled with macro news of gov't and Fed everyone. When investing in tech , what shall we focus?

It would be most easy to only focus on what are more certain. I would strongly suggest Back to the Basic - Shoshin. Just focusing on the following "TMMM"

(1) TAM growth for sector

(2) Margin outlook

(3) Moat 1 - Technology of next gen and Competitive edge

(4) Moat 2 - Management culture

These are pretty self-explanatory. Hope you find it easy to implement.