Do you need an independent, well-founded opinion on the quality, security or robustness of a system? E.g., for accepting an externally developed part, or when evaluating a strategic repositioning of your infrastructure? Maybe you need a second opinion on a system you intend to procure? An evaluation, if an existing system is fit for enhancements, or if a replacement should be called for? Does the technical basis of an existing system suffice to satisfy additional requirements? Are you running a risk to end up in a technological dead-ended?