NexusDB is extremely flexible in its deployment options. There are many databases that support embedded deployment or Client/Server deployment; NexusDB supports both deployment options.  NexusDB also supports a hybrid mixed deployment option whereby an embedded database engine can be exposed to remote clients.

In an embedded mode, both Client and Server layers are contained within a single process. The remoting layer is not present in an embedded deployment.  NexusDB in embedded mode works equally well in web applications such as ISAPI extensions or Apache DSO's.

As a Client/Server deployment NexusDB runs as a separate Server process that networked clients can connect to through the remoting layer. This separate Server process can either be a regular executable or a windows service.  The included nxServer.exe can be registered as a windows service.

A Hybrid deployment is a combination of an embedded and client/server deployment. Just as an embedded deployment the Client and Server layers are contained within one process.  In a hybrid deployment, this same process exposes a remoting layer transport and includes the server command handler.  This remoting layer and command handler enables separate clients to utilize the server engine in exactly the same way as a Client/Server deployment.

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As illustrated above, there are many different ways to deploy and utilize NexusDB's layered architecture.  Each combination above represent typical deployment combinations that are used to achieve certain application objectives. <diagram should focus on the three deployment options: embedded, c/s and hybrid.  Should be typical usages of them.  >

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