1. Sending data to EUROSTAT using STATEL and STADIUM web client
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Sending data to EUROSTAT using STATEL and STADIUM web client
Introduction
STATEL
STADIUM
STADIUM web client
03/02/2003

2. The problem The needs The solution Introduction
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Introduction
The problem
the collection of statistical data at Eurostat
The needs
Accelerate the collection process
Control the data during transmission
Have a follow-up utility for Eurostat
The solution
Send data using STATEL and STADIUM web client
03/02/2003

3. The collection of statistical data at Eurostat
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The collection of statistical data at Eurostat
From anywhere
To the right Eurostat server
Quickly and in time,
Store, complete, with “some pre-validation” services
Follow-up, Monitoring
EUROSTAT servers
03/02/2003

4. Old methods: floppy disk, tape, fax… Internet mail
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Old methods: floppy disk, tape, fax…
Internet mail
Manually: using mailer program
Automatic process
FTP
Using GUI
STATEL: transport layer
(STATEL: STAtistics & TELecommunications)
STADIUM: formalise data collection and distribution
03/02/2003

5. STATEL overview STATEL concept Application Programming Interface (API)
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STATEL overview
STATEL concept
Application Programming Interface (API)
Strictly symmetric peer to peer relationship
The two parts (local and remote: the tuple) are equivalent
Every file operation is made at one side
Kept on a local file system
Transferred to the other part of the tuple using the configured telecomms.
The transfer unit is the PDU
03/02/2003

6. Full-featured data transmission Security and reliability
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STATEL overview
Full-featured data transmission
Bi-directional, symmetric data transmission services
Hierarchical directory structure
Security and reliability
Guaranteed delivery
Permanent encryption
Password security for individual files
Standards based
To achieve maximum portability and minimum impact on existing facilities, STATEL is fully standards based.
The protocols supported by STATEL are ISO, IEFT, or industry standards such as X.400, FTP and SMTP.
STATEL is written in ISO-standard 'C', and compiles on most versions of UNIX and Microsoft Windows.
03/02/2003

7. STATEL services Multi-protocol: Secure Reliable
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STATEL services
Multi-protocol:
STATEL supports most common communications facilities (synchronous and asynchronous) and uses already installed components of the operating system (e.g. Windows sockets, FTP, SMTP - POP3 ...)
Secure
data are encrypted
Reliable
STATEL keeps track of transmitted data and re-transmits missing data as soon as a gap is detected. If a previous connection failed, STATEL will automatically retry the file transmission.
STATEL is an API (Application Programming Interface)
The development toolkit is available and documented. It allows development of applications with transparent telecommunication layer.
03/02/2003

8. STATEL services Comes with a set of tools Explorer Installer program
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STATEL services
Comes with a set of tools
Explorer
allows file manipulation in the VFS
user configurable
Installer program
The Hub
allows several STATEL workstations to combine and manage the traffic to and from the remote parties
The ISMS (Integrated STATEL Management System)
collects needed information from various production machines (such as log file, system status...)
stores collected information in a mysql DB
provides a convenient and quick way to monitor traffic on STATEL network from a web browser
03/02/2003

9. Transport: possible architectures
Standalone
One PC which connects directly to the STATEL gateway
With the Hub
Several PCs which connect to the hub
Transfer at the LAN speed
With the STADIUM Web Client
As standalone or with the hub
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10. Where to Get More Information
On the web
(software and documentation)
From the Help Desk
Level 1
Software usage and installation
Level 2
proactive support
handle more complex problems
03/02/2003

11. Data collection services
STADIUM client standalone: still used
STADIUM web client
Local server application
Data sending from the intranet web
Central collection point in the NSIs
Easier administration
Better control
STATEL lite (STATEL over http)
STATEL Explorer to send GESMES messages
Genedi
Tool provided by Eurostat
Generate Gesmes message
Interfaced with STATEL
03/02/2003

12. STADIUM application
A solution provided by Eurostat which performs electronic data collection.
STADIUM performs
Data collection and formalisation of data sending
Data reception and distribution inside Eurostat
No Client/Server mechanism
Although the terms client and server are often used to refer to the various parts of the system
Merely
Data collection point
Central data handling system
03/02/2003

13. Server – client comparison
STADIUM Server
central side: data handling tool
Data handling
Reception
(Validation)
Backup
Forwarding
Automated and transparent distribution
Follow-up
Reports generation
STADIUM Client
NSI side: collection tool
Entry point to the EDI world (pre-EDI)
Easy integration into the administration telecommunication strategy
GUI windows application
Full follow-up mechanism
Maintain a local DB
Report generation
03/02/2003

14. The STADIUM web client (SWC)
Web application developed in Java
A graphical Web user interface
Multi user application
Does not need any software installation on the sender’s PC
Fully compatible with both Netscape and Internet Explorer
- Generic architecture supporting any type of files exchange
- Support for STATEL
- Modular architecture design, enabling “plug-in”
- Automatic encryption (future)
- Automatic data compression (future)
03/02/2003

15. Is a collection and distribution mechanism Available on Unix (Solaris)
The STADIUM server
Is a collection and distribution mechanism
Available on Unix (Solaris)
Components:
Collection of programs
Uses an Oracle DB
Coldfusion server
Configuration web interface
Monitoring web interface
03/02/2003