EDM is capable of evolving by integrating new
network configuration variations and variation
strategies. Specifically, new network configuration
variations can be developed as special
security applications on SDN controllers. By
estimating the cost and the profit, new network
configuration variation strategies with better
performance are permitted to replace original
ones in the table of network configuration variation
strategies, which makes EDM more efficient
in dealing with the original security
threats. Furthermore, newly developed network
configuration variations can be used to prevent
new emerging security threats. Consequently,
EDM has the potential to cope with current
and future security threats by continually
improving itself.