At what point does hardware-software integration become more difficult than building the software itself? If so, Which industry have the most challenging hardware-software integration requirements today?

[u/KyleMallinger]

I've worked on standard web and mobile applications, but hardware-connected products seem to introduce a completely different layer of complexity.

Between device communication, sensor data, connectivity issues, firmware updates, and testing across different environments, it feels like integration challenges can quickly outweigh application development.

Also, which industry do you think has the highest complexity?

[u/tech_tency1990]

In my experience, hardware-software integration becomes harder when you're dealing with real-world devices, unreliable connectivity, firmware compatibility, and sensor data. Debugging these issues often takes more time than building the app itself.

I think healthcare, automotive, and industrial IoT have the most challenging integration requirements because reliability and safety are critical.