Rupturing means cracks development during processing or ; not necessarily that something out of that system coming out or not. Usually internal matter came out during rupturing.
Collapsing may happen with rupturing or without rupture. In this the support to the product are unable to maintain shape and shrink.
Due to processing or food contact surfaces or food handlers may rupture the foods or plant cell walls and internal matter come out leads to losses or leaching of matter and even some times it also intrude the microbes into foods
Collapse may happen with or without rupturing and product become shapeless