  Despite the lack of important functions supported only by legacy
applications, the current VO-compatible tools have enough capabilities to allow
powerful analysis of stellar spectra using both public archives and local
proprietary data. We give examples of the possible multi-wavelength analysis of
changes of profiles in different spectral lines using the current
SSAP-compatible VO tools. The potential of future VO applications supporting
more elaborate methods for stellar analysis is discussed as well.
