# Defining an IIP

Illuvium Improvement Proposals (IIPs) serve a similar purpose, ensuring that proposed changes to the Illuvium ecosystem are transparent and well-governed. An IIP is a design document that provides information about a proposed system change to the Illuvium community. The author is responsible for building consensus within the community and documenting dissenting opinions.

Improvements implemented through IIPs may include:

* New contracts
* New systems
* Expansions
* Character sets