x-dependent polarized parton distributions

Using QCD motivated and phenomenological considerations, we construct $x$ dependent polarized parton distributions, which evolve under GLAP evolution, satisfy DIS data and are within positivity constraints. Each flavor is done separately and the overall set can be used to predict polarization asymmetries for various processes. We perform our NLO analysis strictly in $x$ space. Small-$x$ results and other physical considerations are discussed.