Emergent behaviour definition

A dynamic simulation uses the ingredients dissected from a complex system to attempt the construction of a model which exhibits dynamic attributes, i.e. emergent behaviour. Such a simulation is more complicated than the static models from which it is derived. Attempts are made to incorporate into these simulations the transactions and interactions that we know are there but which elude a precise definition. Comparisons are made with observables to ascertain some degree of the quality of a model. 

The first central issue in functional analysis is then Starting out with a complex requirements definition document (RDD) (i.e. with numerous and interacting requirements on the functionality), how do we select a set of functional elements and their interactions such that the resulting functional system satisfies the RDD We could try to pick a subset from a set of previously used elements and let them interact in a particular fashion. But we are faced with exactly the same problem as we encountered with the bottom-up approach to design in the physical domain, as discussed in Sec. B5.2. It is unlikely that the emergent behaviour of the functional system will meet all the requirements in the RDD. It will require a number of iterations to achieve that, and even then we have no way of knowing and demonstrating that we have found the best solution (the second central issue in functional analysis, to be discussed in the next section). 

Whilst some of the foregoing experimental results may appear at first sight to be in conflict, a definite pattern of flocculation behaviour emerges on closer scrutiny. This may be set forth as follows. 

---