How to build a project with software products and native code

Question

Let's say you have a specific project at hand, it can be divided into parts, and you are not completely sure of all the difficulties that will arise. Time matters.

• How do you decide if a part should use a software product or its own code? (given that some tools are awesome, but it takes a long time to learn).
• How do you choose the right software product?
• How much time (in percent) should this step of choosing the right product, if any, go, and how long does it take to evaluate one product?
• Is there any feedback, does ok change its mind after it makes an effort on the product and is it not suitable?

I would like to hear any rules of thumb.

Answer 1

As in any art, difficulty is a good solution based on a very large space of solutions. There are so many ways to do this, as there are developers.

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