digraph G {
        size="8.5,11!";
        //ratio="auto";
        node [shape=note, height=1.3, width=1.05, fixedsize=true]; "fileIn.din" "fileOut.txt" "Report";
        node [shape=rectangle, width=2, height=1]; "Lab Form" "Lab";
        node [shape=diamond, width=2, height=1, fixedsize=true];

        subgraph clusterServer{
                label = "Server"; style=filled; bgcolor="#D0C0A0";
                "Database";
        };
        subgraph clusterLab{
                label = "Lab"; style=filled; bgcolor="#D0C0A0";
                "Lab";
        };

        "Sample" -> "Log-in Form" [label="Goes to"];
        "Log-in Form" -> "Database" [label="Updates/Writes to"];
        "Log-in Form" -> "Lab Form" [label="Prints"];
        "Lab Form" -> "Lab" [label="Goes to"];
        "Lab" -> "Lab Form" [label="Updates"];
        "Lab Form" -> "CSV Outputter" [label="Inputs to"];
        "CSV Outputter" -> "fileIn.din" [label="Generates"];
        "fileIn.din" -> "DH SAT" [label="Inputs to"];
        "DH SAT" -> "fileOut.txt" [label="Generates"];
        "fileOut.txt" -> "Parser" [label="Inputs to"];
        "Parser" -> "Database" [label="Updates/Writes to"];
        "Database" -> "Excel Macro" [label = "Pulls from", dir="back"];
        "Excel Macro" -> "Report" [label="Generates"];

        "Sample" [shape=ellipse];
        "Lab Form" [shape=component];
        "Database" [shape=invtrapezium];
        "Log-in Form" [shape=diamond];
}