Organizing Standardisation of Astronomical Data Access: the DAL WG Current Experience

The tremendous amount of data available in astronomy at all wavelengths allows astronomers to make new science and to correlate an extremely wide range of phenomena. It is also a challenge for digital data management distribution and processing. Interoperable data access protocols as designed by the IVOA take a major place in this challenge. This contribution reviews the current trends of IVOA efforts in this context.