Navy’s flawed technology set the USS John McCain up for disaster
In a panic people get tunnel vision. When you design HMI's for a living you have to consider. If my brother, sister, grandmother was using this system during an emergency could we guide them to make the right decisions.<p>The fact that the prop controls could be split but the UI would not gray out the sliders on the screens that did not have control is a poor user interface design choice. If the controls only appeared "active" on the screen they were transferred too this could have made things much more simple.<p>The fact that the mushroom button for emergency steering yanked control to wherever it was pressed- this should have displayed a red on black box. Emergency Override called from X Station.<p>The issues with the navigation system are a whole other bag of worms- who knows what the mess was there.<p>Disclosure, I have done HMI design and install in production systems for manufacturing, chemical and warehousing operations. I have never built anything for a ship or vehicle. So I may be speaking total stupid to someone in that industry. I would love to hear someone from that market sector drop in and talk about how or why the HMI was setup like this.<p>Sounds like this system was sub-contracted to the lowest bidder and pushed out without enough testing.