Comext Architecture and data flows Benoit Faes – Eurostat G5 29-Sept-09

Comext Architecture - Basic Components Metadatabase Data structure Reference objects Comext Server Display clients (Easy, Analytical Client, Web Client, Data Explorer) Communication protocol (API) Pivot format used for data manipulations (MTX/XT) 29-Sept-09

Comext architecture - Metadatabase content Accessible objects names Object types (Comext and external) Objects location How parts of the objects can be extracted How external objects are transformed into Comext objects (which program to use..) Nomenclatures, relations, descriptions, documents Data structure Reference objects 29-Sept-09

Comext architecture - dataset model 29-Sept-09

Comext data flow – Global view Metadata LOADING Comext Reference Editor INTERFACE Files loaded to RDBMS Dataloading Program Data files XTNET staging SCHEDULER Nomenclature Loading area Program SFTP , SCP Data Noms , files Rels The member states send data Edit NPS generates files to Eurostat the data files classifications files EBB NPS XTNET - Edit SAM 29-Sept-09

Comext data flow – Comext On-Line Database (data and metadata) DLI / DLP Bulk Download File COMEXT Server Enterprises Statistics Production Bulk Down-load & DVD Production PRODCOM Production ETSEC File PRODCOM File Bulk & DVD Data Web Server HTTP and Java Application Programming Interface (API) Client/Server Protocol Web Browser Data Explorer * C++ Client Local Client Database Request for International Trade Statistics 29-Sept-09

Comext data flow – Easy Comext Database (data and Metadata) PL / SQL Process Unix Scripts COMEXT Server Comext Database (data and metadata) Web Server HTTP and Java Web Browser Request for International Trade Statistics 29-Sept-09

Other Classifications & Mappings Comext data flow - NPS TARIC (TAXUD) Other Classifications & Mappings RAMON SAM Update Nomenclatures (NPS Application) Generate Stable Nomenclatures NPS Database Nomenclatures Comext Database DLI / DLP 29-Sept-09

Thanks for your attention. 29-Sept-09