system process

FrancieGiuly
Posts: 2
Joined: 04 Jan 2017 19:39

system process

Postby FrancieGiuly » 04 Jan 2017 19:43

Hi guys,
just a simple question, which is the difference between unit process and system process?

Thank to everyone! :)

aciroth
Posts: 598
Joined: 09 May 2010 23:28

Re: system process

Postby aciroth » 05 Jan 2017 11:21

Hi, a system process is result of an aggregation of several unit processes. Unit processes are smallest modeling units, as defined in ISO 14040.
Best
Andreas

FrancieGiuly
Posts: 2
Joined: 04 Jan 2017 19:39

Re: system process

Postby FrancieGiuly » 12 Jan 2017 10:40

Thank you for the information but we have a basical database where there are unit process and system process with the same name but not evident differences. Can you explain us the pratical differences about them?
Thanks
Giuliana & Francesca

aciroth
Posts: 598
Joined: 09 May 2010 23:28

Re: system process

Postby aciroth » 12 Jan 2017 12:17

Hi Giuliana & Francesca,
well if you open a unit process and a system process for the same product, you should see differences - typically, since the system process aggregates the whole life cycle, it contains many more elementary flows.
Best wishes,
Andreas

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