Amazon, Apple, Google, and the Zigbee Alliance joined together to promote the formation of the Working Group.
The goal of the Connected Home over IP project is to simplify development for manufacturers and increase compatibility for consumers. The project is built around a shared belief that smart home devices should be secure, reliable, and seamless to use.
Further reading in the link:
Project Connected Home over IP is a new Working Group that plans to develop and promote the adoption of a new, royalty-free connectivity standard to increase compatibility among smart home products, with security as a fundamental design tenet.
https://www.connectedhomeip.com/