If you want to know what processes and supply chains were included in the calculation of the ecoinvent process data, it is recommended to have a look at the official ecoinvent documentation.
Reports are available for download at the
ecoinvent website. A free registration as guest is required.
The attached image shows a list of reports available. Additionally there are two reports describing changes made from ecoinvent v2.0 to v2.1 and from ecoinvent v2.1 to v2.2.