What is the best way to choose technology for the software application after under stand the requirement?

Kind of business, types of users, internal and/or external users, robustness, standalone or networking requirement, desktop applications or mobile, application software or scientific software, etc many factors need to consider.

It should have three facts to think upon.

1. Cost

2. Usage

3.Best technology - It should not be happened that after implementation it become headache for support team.