Flow-based Programming reminds me very much of current data mining suites like IBM SPSS Modeler or RapidMiner. The prefered way to model an analysis is to build a graphical flow chart using various building blocks connected to one another. Those high-level blocks can be as diverse as data transformations (filtering, aggregation) or data mining algorithms (decision tree, regression analysis).
The input for the analysis usually comes from one or many database systems. The output is usually also written to databases.
FBP makes it very easy even for non-experts to build data mining analyses using these tools.