This paper gives a short overview of the talk related to the challenges in software development of resilient systems. The challenges come of the resilience characteristic as such; it a system emerging lifecycle property, neither directly measurable nor computable. While software is an essential part of a system, its analysis not enough for determining the system resilience. The talk will discuss about system resilience reasoning, its limitations, and possible approaches in the software design that include resilience analysis. © 2011 Springer-Verlag.