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While computers speed up these tools, all that is necessary is pencil and paper. We hope these tools may be useful in worlds as different as academic medical centers and pre-literate tribal societies. \emph{Literacy Bridge} a clever and effective program produces changes in maternal and child health and agriculture by supporting communication with spoken word devices.  \subsection{Complexity}  Complex systems have multiple parts. Human use the technical  parts and interact with other  humans, constantly interacting and changing introducing communication. All this is in constant change  over time. I stumbled upon this example on the internet. We could consider the magnets as non-human parts of the system, marbles as humans, and sticks and pieces of wood as designed control factors to keep the components in a safe range. We can see there are many ways things can go wrong and how hard it is to modify one part without unexpected results elsewhere. \marginnote{Marbles and Magnets \url{http://www.eetimes.com/author.asp?section_id=216&doc_id=1329692}} \subsection{Extending an Investigation}  While we began with specific incidents we found in order to have an adequate context we needed both a wider and a deeper look. In the literature this is called \emph {thick description} an idea introduced by Gilbert Ryle, a philosopher of Mind \cite{Ryle_2003},and popularized by Clifford Geertz, an anthropologist, who applied the idea in field work in Bali. \cite{Ryle_2003}  \end{section}