What architectural issues do you see in the addField method with type checks via if?

Using multiple type checks via if in the addField method indicates several architectural issues:

• Violation of the Open/Closed Principle (OCP): each time a new type is added, the method needs to be modified, which complicates maintenance and extension.
• Code complexity and bulkiness: many conditional operators reduce readability and increase the likelihood of errors.
• Lack of polymorphism: instead of using inheritance or interfaces to handle different types, the logic is concentrated in one method.

It is better to apply design patterns, for example, using polymorphism where each field type implements its own add method, or using a factory to create the required object without ifs. This will improve scalability and maintainability of the code.