BIOE 123 Dependency Graph.dot

digraph G {
    clusterrank=global;
    fontname="Helvetica";
    rankdir="TB";
    newrank=true;
    
    node [shape=box];
    
    subgraph cluster1 {
        label="1 Systems Engineering";
        color=grey;
        
        1.2 [label="\N Iterative design cycle"];
        1.3 [label="\N Product requirements"];
        1.3 -> 1.2 [dir=back];
        1.4 [label="\N System design"];
        1.4 -> 1.3 [dir=back];
        1.5 [label="\N Design specifications"];
        1.5 -> 1.4 [dir=back];
        1.6 [label="\N Traceable testing"];
        1.6 -> 1.5 [dir=back];
        1.7 [label="\N Safety through design and risk-benefit analysis"];
        1.7 -> 1.4 [dir=back];
        1.8 [label="\N Centrifuge design" color=blue];
        1.8 -> {1.6, 1.7} [dir=back];
    }
    
    subgraph cluster2 {
        label="2 Assembly & Troubleshooting";
        color=grey;
        
        2.2 [label="\N Different ways to represent systems"];
        2.3 [label="\N Mechanical assembly"];
        2.3 -> 2.2 [dir=back];
        2.4 [label="\N How to figure out what's not working"];
        2.4 -> 2.3 [dir=back];
        2.5 [label="\N Basics of circuits & microcontrollers"];
        2.5 -> 2.2 [dir=back];
        2.6 [label="\N Circuit assembly"];
        2.6 -> 2.5 [dir=back];
        2.7 [label="\N Debugging circuits"];
        2.7 -> {2.4, 2.6} [dir=back];
        2.8 [label="\N Centrifuge assembly" color=blue];
        2.8 -> {2.4, 2.7} [dir=back];
    }
    
    subgraph cluster3 {
        label="3 Iterative Testing & Design";
        color=grey;
        
        3.2 [label="\N Verification & validation"];
        3.2 -> {1.6, 2.8} [dir=back];
        3.3 [label="\N Using analysis to guide redesign"];
        3.3 -> 3.2 [dir=back];
        3.4 [label="\N Iterating safety measures"];
        3.4 -> {1.7, 3.3} [dir=back];
        3.5 [label="\N Centrifuge system-level redesign" color=blue];
        3.5 -> {1.8, 3.4} [dir=back];
    }
    
    subgraph cluster4 {
        label="4 Design: Mechanical";
        color=grey;
        
        4.2 [label="\N Progressive (rapid) prototyping"];
        4.3 [label="\N CAD"];
        4.3 -> 4.2 [dir=back];
        4.4 [label="\N 3D printing and laser cutting"];
        4.4 -> 4.3 [dir=back];
        4.5 [label="\N Centrifuge mechanical redesign" color=blue];
        4.5 -> {3.5, 4.4} [dir=back];
    }
    
    subgraph cluster5 {
        label="5 Design: Actuators & Indicators";
        color=grey;
        
        5.2 [label="\N Designing circuits"];
        5.2 -> 2.7 [dir=back];
        5.3 [label="\N Pulse-width modulation: 'analog' control"];
        5.3 -> 5.2 [dir=back];
        5.4 [label="\N Arduino: controlling circuits with software"];
        5.4 -> 5.2 [dir=back];
        5.5 [label="\N Motors: controlling matter with electricity"];
        5.5 -> 5.3 [dir=back];
        5.6 [label="\N Centrifuge actuator system redesign" color=blue];
        5.6 -> {3.5, 5.4, 5.5} [dir=back];
    }
    
    subgraph cluster6 {
        label="6 Design: Sensors";
        color=grey;
        
        6.2 [label="\N Switches and potentiometers: getting user inputs"];
        6.2 -> {5.2, 5.4} [dir=back];
        6.3 [label="\N Data types for measurements"];
        6.3 -> 6.2 [dir=back];
        6.4 [label="\N Sensors: measuring physical properties"];
        6.4 -> 6.3 [dir=back];
        6.5 [label="\N Signals: frequency and sampling"];
        6.5 -> 6.4 [dir=back];
        6.6 [label="\N Centrifuge sensing system redesign" color=blue];
        6.6 -> {5.6, 6.5} [dir=back];
    }
    
    subgraph cluster7 {
        label="7 Integration, Testing, and Analysis";
        color=grey;
        
        7.2 [label="\N Closed-loop control"];
        7.2 -> {5.6, 6.6} [dir=back];
        7.3 [label="\N Designing software other people can use"];
        7.3 -> 5.4 [dir=back];
        7.4 [label="\N Debugging with integration"];
        7.4 -> {4.5, 7.2, 7.3} [dir=back];
        7.5 [label="\N Centrifuge redesign" color=blue];
        7.5 -> 7.4 [dir=back];
        7.6 [label="\N Centrifuge testing & analysis iteration" color=blue];
        7.6 -> 7.5 [dir=back];
    }
    
    { rank=min; 1.2; 2.2; 4.2 }
    { rank=same; 1.3; 2.3; 4.3 }
    { rank=same; 1.4; 2.4; 4.4 }
}