Business logic is the computational set of rules and procedures that determine how a business operates.
Business logic can be automated using computer programs like spreadsheets or programs like Microsoft Word. In fact, many companies use these tools because they are simple and easy to use. However, there are also dedicated software products that can help automate business logic so that it can be applied across multiple industries or even across multiple companies within an industry sector.
Business logic, and being able to write and automate your own, is crucial in running a business. It ensures that real-world business rules are encoded in software. This way, software can deliver true business value in a way it could not if it was just operating in a vacuum.