Product systems are the core
element of ECOCLASS. Here, product chains are defined in order to
calculate their environmental impacts. In the current version of
ECOCLASS, a product system consists of (at least) one utilization
process and a so-called reference flow,
which have to be connected by a flow arrow.
Each project contains a subdirectory 'models' and within this folder by default the product system 'product.model'. You'll find it in the Navigator panel by opening the project and then the folder 'models' (either by double click or by clicking the little cross). There is also a system entry named '.project', which contains data on the project structure but can be ignored within ECOCLASS.
You can easily create new or additional product systems.
Existing product systems can be renamed, no matter if you want to rename the default 'product.model' or a product system created by you. Simply
Double clicking the product system in the Navigator panel will create a new product system editor (PSE) in the main view of the workbench. The same task will be achieved by clicking the right mouse button on the product system in the Navigator and selecting "Open".
How you work with the PSE is described here.