ODS model construction technology based on metastore

In the 3-level architecture DB-ODS-DW of data warehouse system,ODS takes a connecting link functions between the preceding and the following program.There is not a uniform plat to manage metadata in the traditional ODS,so the metadata managing cost is much higher and difficult to maintain.A metastore technology of ODS metadata management is proposed in the paper which can make ODS metadata management much standard,and has lower complexity and cost compared with metadata repository.An ODS construction model based on metastore is put forward finally.