==Request Lifespan==
<div style="float:right; margin: 0px 0px 0px 0px">
<graphviz border='frame' format='svg'>
digraph StatesDiagram {
node [shape=rectangle style=rounded fontsize="9pt"];
edge [fontsize="7pt"];
//----- Main graph
// Nodes
Begin [label="" shape="circle" style=filled fillcolor=black fixedsize=true width=0.2 height=0.2];
Registered [label="Registered"];
Processing [label="Processing"];
WithResults [label="WithResults"];
Validated [label="Validated"];
Cancelled [label="Cancelled"];
End [label="" shape="doublecircle" style=filled fillcolor="black" fixedsize=true width=0.2 height=0.2];
// Edges
Begin -> Registered [constraint=false];
Registered -> Processing [label="Some sample delivered" constraint=false];
Processing -> WithResults [label="All results provided" constraint=false];
WithResults -> Validated [label="All tests validated" constraint=false];
Validated -> End [constraint=false];
Registered -> Cancelled [label="Cancel"];
Processing -> Cancelled [label="Cancel"];
WithResults -> Cancelled [label="Cancel"];
Cancelled -> End [constraint=false];
{ rank=same; Begin Registered Processing WithResults Validated}
{ rank=same; Cancelled End}
}
</graphviz>
</div>
