This Feedback System UML Sequence Diagram is primarily used to depict the interactions between objects in the order in which they occur. Developers, like class diagrams, frequently believe sequence diagrams are only for them. Sequence diagrams, on the other hand, can be useful to an organization's business staff to communicate how the business currently works by displaying how various business objects interact. A business-level sequence diagram can be used as a document to communicate requirements for future system implementation and document an organization's current affairs.