Designing small business software

Hi!

Up to now i've been programing small games and utility software, mostly for fun and learning. Now i wanna learn how to design programs for businesses. How do you learn to do that properly? Is it entirely by trail and error, or are there any books or other resources about (small) business software design?

Thanks for any help!

Wellll... you could take some accounting and business admin courses so you understand what's needed for a small business. Then apply you coding skills to the problem...

And, with no intention to be snyde in any way... the last thing you want to do is take "trial and error" chances with any business' money.