Next: HDX Data Model: FITS, NDF and XML Implementation . ... The loading process will be completely automated using a combination of VB and DTS scripts and SQL stored procedures, and a admin web interface will be provided to the Load Monitor which controls the entire loading process. ... In January 2002, the SDSS collaboration made the decision to migrate to Microsoft SQL Server as the DB engine based on our dissatisfaction with Objectivity/DB's features and performance (Thakar et al. 2002). ...