Yes, the terms "Tier 1" and "Tier 2" are used in the context of Dynamics 365 Finance and Operations (D365FO) deployments to describe the different types of environments used for development, testing, and production.
In general, Tier 1 environments are used for production purposes and are intended to be highly available, reliable, and performant. These environments are typically hosted in the cloud and are designed to meet high levels of demand from end-users. They often have multiple instances to provide redundancy and to allow for maintenance and upgrades without impacting availability.
Tier 2 environments, on the other hand, are typically used for development, testing, and staging purposes. They are used by developers and testers to build and test new features and functionality before they are deployed to production environments. Tier 2 environments are often less powerful and less expensive than Tier 1 environments, but they are still designed to be reliable and performant.
In D365FO, Tier 1 and Tier 2 environments can be created using the Lifecycle Services (LCS) tool. LCS allows users to create, manage, and deploy environments for D365FO, including both Tier 1 and Tier 2 environments.
It's important to note that the specific definitions and usage of the terms "Tier 1" and "Tier 2" can vary depending on the organization and context. However, in general, these terms are used to describe the different types of environments used in the deployment and management of D365FO applications.
