hammonds
--- a/Installation/DataManagementSplitSystemSetup.md
+++ b/Installation/DataManagementSplitSystemSetup.md
 ### Support Tools Installation
 Before installation of the APS Data Management System a number of tools need to be installed on the server nodes.  The __DM__ system depends on tools such as Java, Python, Postgresql, MongoDB, ZeroMQ, etc.  A set of scripts have been established which will download, build (when necessary) and install these tools for use with the __DM__ system.  While it is possible to install most of these tools using more conventional means (e.g. RPM on Linux) the install scripts provided here builds and installs these tools specifically for use with the __DM__ system.

-For the purposes of this tutorial, we will are creating two nodes which will contain different piesces of the __DM__.  One node will be referred to as the data-storage node this will contain the data storage web service and the Postgresql database which conatains the user database.  The second node will b reffered to as the exp-station node.  This node will provide the cat web service (a catalog of the stored data), the daq web service (provides a way to move collected data) and the proc web service (provides a means to process data).
+For the purposes of this tutorial, we will are creating two nodes which will contain different pieces of the __DM__.  One node will be referred to as the data-storage node.  This will contain the data storage web service and the Postgresql database which conatains the user database.  The second node will be reffered to as the exp-station node.  This node will provide the cat web service (a catalog of the stored data), the daq web service (provides a way to move collected data) and the proc web service (provides a means to process data).