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

2. 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

3. 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

4. Comext architecture - dataset model
29-Sept-09

5. 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

6. 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

7. 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

8. 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

9. Thanks for your attention.
29-Sept-09