\section{Scope}\label{scope}
At the start of the project the REST API specifications together with the
database schema and Donau protocol was written.
While implementing, the Donau API and DB tests were written to ensure that the
endpoints and database work correctly.
During the project the code was documented and various other documents like
presentations and project summaries were created.
This included a short video, presenting the Donau.

An interview was held with the tax authority Zürich, which has provided
valuable insight in how donations are verified and important aspects that a
system like the Donau should fulfill.

Out of scope was the charity implementation which would have been integrated
into the Taler merchant and the donor client implementation which would have
been integrated into the Taler wallet. Unlike the charity integration, the
donor part of the Taler wallet is payment system dependent.
In other words, since the Taler wallet can only make donations with the Taler
payment system, it could only receive donation receipts for this. The
administrator interface was also not realized, which would have provided a
user-friendly interface to manage the charities. The Android verification
application was also out of scope, as it could only be partially implemented.

