  Many galaxies display clear bulges and discs, and understanding how these
components form is a vital step towards understanding how the galaxy has
evolved into what we see today. The BUDDI-MaNGA project aims to study galaxy
evolution and morphological transformations through the star-formation
histories of the bulges and discs. We have applied our BUDDI software to
galaxies from the MaNGA Survey in the SDSS DR15 in order to isolate their bulge
and disc spectra, from which we derived their stellar populations. To date,
this work provides the largest sample of clean bulge and disc spectra extracted
from IFU datacubes using the galaxies light profile information, and will form
the basis for a series of papers aiming to answer open questions on how
galaxies have formed and evolved, and the role of their individual structures.
This paper presents an introduction to the project, including an overview of
these fits, a characterisation of the sample, and a series of tests on the fits
to ensure reliability.
