One of the primary design challenges was ensuring the ICU Angel software could easily integrate with existing hospital systems. During the design phase, it became apparent that various hospital databases and devices' interfaces and data formats would complicate integration. To address this, I focused on creating a flexible design that accommodates multiple data formats and workflows. By implementing robust APIs and adhering to industry interoperability standards, I ensured that the design could communicate effectively with other systems, which was validated through extensive testing.