How should I prepare my Italy start-up visa application to increase the chance of being approved?

I learned recently that nearly half of applicants who submitted their applications for Italy start-up visas are rejected. I am in the process of preparing for my application. What are some key points I need to be extra cautious about to increase the possibility of being approved?

Answers

On Alessia Ajelli answered:

Preparing a detailed business plan with material proof of the fináncial and economic resources available to make the initial investment, and later support the development of the business, is a key factor. Also, applications made with the support of an Italian startup incubator are taken in good consideration.

On Marco Mazzeschi answered:

Preparing a detailed business plan with material proof of the fináncial and economic resources available to make the initial investment, and later support the development of the business, is a key factor. Also, applications made with the support of an Italian startup incubator are taken in good consideration.

On Andrea Parisi answered:

Preparing a detailed business plan with material proof of the fináncial and economic resources available to make the initial investment, and later support the development of the business, is a key factor. Also, applications made with the support of an Italian startup incubator are taken in good consideration.