  The space missions TESS and PLATO plan to double the number of 4000
exoplanets already discovered and will measure the size of thousands of
exoplanets around the brightest stars in the sky, allowing ground-based radial
velocity spectroscopy follow-up to determine the orbit and mass of the detected
planets. The new facility we are developing, MARVEL (Raskin et al. this
conference), will enable the ground-based follow-up of large numbers of
exoplanet detections, expected from TESS and PLATO, which cannot be carried out
only by the current facilities that achieve the necessary radial velocity
accuracy of 1 m/s or less. This paper presents the MARVEL observation strategy
and performance analysis based on predicted PLATO transit detection yield
simulations. The resulting observation scenario baseline will help in the
instrument design choices and demonstrate the effectiveness of MARVEL as a TESS
and PLATO science enabling facility.
