Logical & Physical Modelling
Deployment Manager is unique in that it lets you model the physical structure of your environments. This means that not only is it flexible enough to handle almost any grouping of servers whatever their roles, but it can easily cope with having different structures for each environment and still use the same set of deployment rules to make the deployment.

Logical Servers
Logical Servers, or environments, allow you to group together physical servers that work together. When you deploy to a logical server, all the physical servers receive the deployment in parallel. What they receive is controlled by the rules you define, so deployments can be conditional based upon the role of the server within that environment.

Physical Servers
Physical Servers are conventionally representations of physical hardware, but they can be given more deployment-friendly names rather than having to refer to them by their, sometimes meaningless, hostnames. This naming also allows for more complex scenarios whereby a server is partitioned into two or more areas, allowing us to target deployments at just a part of a server.

 Deployment actions operate on sets of servers. Initially we target all the physical servers in an environment - this means that all the servers will either receive the same deployment or have the same scripts run upon them. By defining roles for servers, we can pick the subset of servers which, for example, are running the database component and target just that subset to receive SQL updates. This makes for very simple rulesets which will work whether the environment contains one database server or many.