  This article describes currently used analysis strategy and data analysis
software for geodetic VLBI.Today's geodetic observing strategies are shortly
presented, and the geodetic VLBI observables and data modeling are briefly
discussed. A short overview is given on existing geodetic VLBI software
packages and the statistical approaches that are applied. Necessary
improvements of today's analysis software are described. Some of the future
expectations and goals of geodetic VLBI are presented and the corresponding
consequences for the VLBI technique are explained. This includes consequences
in terms of technical development and corresponding improvements in data
modeling and analysis software.
