Choosing the right medium based on market segment:
Yes, this is a very important step. As said earlier you have to know your segment. Digital marketing has a unique feature. It is very easy to gather statistics and data. Once you have got that on retrospect you could analyze each and every step of yours on a meticulous level. It shows you where you have more hits, the segment where you are strong, the medium where you are strong. Once that is done it is easy math from then on.
Analyzing the investment and making it regular:
Taking no risk is the biggest risk one can ever take. Never be afraid to invest, you sow what you reap. Know where to invest, know where the right investment would yield great productivity and make it regular with ROI Calculations
Revising the result digital marketing and optimizing it :
Embrace the digital marketing techniques as they are going to change the fate of a company. They are purely driven by results and guides you in every single way. Points out your strengths, weakness and gives one a perfect analysis. Correct the errors, optimize them and start fresh.