This Chatauqua is a series on what is generally seen as two major incompatible views on how to design, implement and operate information systems. The aim is to explore how both general approaches make sense in different ways and in combination rather than in antagonism. In choosing Walled Garden and Prairie to categorise these two general approaches it might seem that I have a negative bias to one or the other, that really isn't where this is coming from. Walled Garden is often treated as a derogatory term, with hard perimeters, control and command hierarchies and long term planning but its also (in its original use) about providing the right conditions for different plants with different requirements and a structured navigation which allows maintenance, gardening without obstructing or affecting the rest of the Garden. In its way the Prairie might seem without controls, borders, vulnerable and inefficient but it's also resilient because there is no single point of failure and burning it down periodically keeps it healthy.