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I've been working on this problem all day, I'm re-writing one of our legacy products and I'm having a hard time determining how to find a specific node in my flow chart. The problem reminds me of University, but for the life of me I can't come up with an algorithm to solve this. I've attached 3 screen shots to help explain this, but the basic problem is, given a YES/NO? decision node, locate the closest child node that terminates the branch. I'm working in C# .NET and JSON. In JSON I've got an object that gives each node a unique identifier, and also identifies each "link" from one node to the next. I would hope to write a function (or several) to determine the first "end node" given a branched node in C#. Currently I've built out the jSON into XML in C#. Any and all ideas encouraged, not really looking for code but an approach/algorithm. Attached is the output in jSON from the diagram: { "class": "go.GraphLinksModel", "linkFromPortIdProperty": "fromPort", "linkToPortIdProperty": "toPort", "nodeDataArray": [ {"key":-1, "category":"Start", "loc":"169 288", "text":"Start"}, {"key":-2, "category":"End", "loc":"855 394", "text":"End"}, {"category":"Branch", "text":"Yes or No", "key":-4, "loc":"284.8837209302326 285.7848837209302"}, {"category":"DelayNode", "text":"Delay", "key":-3, "loc":"365.8837209302326 215.52345997177622"}, {"category":"Branch", "text":"Yes or No", "key":-5, "loc":"478.8837209302326 214.52345997177622"}, {"category":"DelayNode", "text":"Delay", "key":-6, "loc":"568.8837209302326 151.52345997177622"}, {"category":"DelayNode", "text":"Delay", "key":-7, "loc":"573.8837209302326 268.523

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