  We present the results of the timing and color analysis of more than two
hundred RXTE/PCA observations of the bright black-hole transient GX 339-4
obtained during its 2002/2003 outburst. The color-intensity evolution of the
system, coupled to the properties of its fast time variability, allow the
identification of four separate states. Depending on the state, strong noise is
detected, together with a variety of quasi-periodic oscillations at frequencies
from 0.2 to 8 Hz. We present a characterization of the timing parameters of
these states and compare them to what has been observed in other systems. These
results, together with those obtained from energy spectra, point towards a
common evolution of black-hole transients through their outbursts.
