Local IO is an object oriented .NET assembly that supports the development of OPC DA 2.0 clients by encapsulating all of the OPC communications details in one assembly. Not just an OPC wrapper; you never have to deal with COM to .NET interop issues.
Jenetics is a Java based object oriented library of an Genetic Algorithm. The library offers a clear separation of the several concepts of the algorithm, e.g. Gene, Chromosome, Genotype, Phenotype, Population and FitnessFunction.