  We present TA-DA, a new software aimed at greatly simplify and improve the
analysis of stellar photometric data in comparison with theoretical models, and
allow the derivation of stellar parameters from multi-band photometry. Its
flexibility allows one to address a number of such problems: from the
interpolation of stellar models, or sets of stellar physical parameters in
general, to the computation of synthetic photometry in arbitrary filters or
units; from the analysis of observed color-magnitude diagrams, to a Bayesian
derivation of stellar parameters (and extinction) based on multi-band data.
TA-DA is available as a pre-compiled IDL widget-based application; its
graphical user interface makes it considerably user-friendly. In this paper we
describe the software and its functionalities.
