What are the 3 categories of emergencies that can happen on ISS (International Space Station)?

Question

Not things that can happen, but categories?

Answer 1

Fire, depressurization, and.... uh..... ?? alien abduction??

Answer 2

I have no clue...depends on the topographical framework defined for ISS emergencies. Don't bother looking it up...topography is the mapping of something into categories. Check this out:

"to·pog·ra·phy (tə-pŏg'rə-fē) n., pl. -phies.

A description or an analysis of a structured entity, showing the relations among its components: In the topography of the economy, several depressed areas are revealed." [See source.]

Anyway, as a practicing systems analyst, I devised my own topography for systems in general. It can be applied to the ISS and any other system. Here's the list of categories and some examples of what could go wrong.

Physical-Technical...air leaks, electrical fires, cosmic radiation, meteor impacts, loss of air purification system....

Financial-Economic...lack of funds to sponsor further operations, mainteance

Societal-Cultural...crew members go ballistic and turn on each other from lack of understanding

Communication-Logistics...replenishment shuttle fails to arrive before supplies run out, comm is lost with Earth control

Administrative-Organizational...crew member fails to take orders, required data on board cannot be retrieved

Political-Legal...Putin launches a missile at France while Russian cosmonauts and American astronauts are on board the ISS, Albania demands the ISS stop overflying its air space

So, as this short, illustrative list shows, a lot can go wrong...and this list is just the beginning.