Intelligence has many definitions. In natural and man-made systems, it was studied by Norbert Wiener, as Cybernetics: Control and Communication in the Animal and the Machine.
Systematica Methodology defines Embedded Intelligence as the logical role(s) of a system capable of managing the performance, fault, configuration, security, or accounting aspects of other components of that system.
These are the System Management Functional Areas (SMFA's)
Among the most complex systems are those that adapt to their environment.
Situationally aware systems maintain stateful tracking of the status of their environment, and adapt their behavior to that situation.
Intelligent systems, whether man-made or natural, exhibit a set of logical behaviors that are described by the Systematica Embedded Intelligent Pattern.