Before revision:  Framework of the two-parameter Poisson-Dirichlet distribution contains rich set of methods and tools, such as consistent family of distributions on partitions, limiting distribution in infinite ranked simplex and associated diffusion process, induced by Markov chain of special form .
After revision:  Framework of the two-parameter Poisson-Dirichlet distribution contains rich set of methods and tools, such as consistent family of distributions on partitions, limiting distribution in infinite ranked simplex and associated diffusion processes .