Making things last in extreme environments or when things go wrong
Offshore, Off World, 3D
Many products are designed to be disposable, some are not
When manufacturing PCBs
1/4W resistor vs 1/2W?
Capacitance max 12V or 25V?
Diode or polarity protection
5V protection of Arduino on a 12V board
Cases make electronics dust resistant
IPX standard for waterproof casing
There needs to be a Category: Ruggedisation!