Connections is a CDI solution which is Segment’s core product, Personas by Segment is a CDP, and Protocols is a data governance tool.
Connections is Segment’s core product that offers a range of SDKs and an HTTP API to track customer data from first-party data sources — your website and apps — and sync the data to a data warehouse as well as to third-party tools. It also offers ELT capabilities, allowing you to ingest data from a range of third-party tools into your data warehouse as well as sync data between tools.
Personas, Segment’s CDP offering, is an add-on solution that enables teams to build audiences by combining data from multiple sources and syncing these audiences to a range of advertising and marketing tools for personalization purposes.
Protocols, also an add-on solution to Connections enables teams to collaborate on their tracking plan and helps engineers validate incoming data and enforce schemas to make sure data remains clean and accurate and data quality issues don’t go unnoticed.