About Frequentis
In the past few years FREQUENTIS has developed from a small Austrian-based company into a mid-sized company group with subsidiaries all over the world - you may find us in Germany, the Czech Republic, Slovakia, the United Kingdom, Canada and the USA.
Additionally, regional offices have been founded to keep close contact to the customers on site. Together with joint ventures and strategic partnerships they form the basis for a world-wide customer-oriented know-how network.
An average growth rate of more than 30% per year shows that the customers appreciate the efforts taken by FREQUENTIS.

Subsystem Common Services
The Common Services Subsystem provides utilities used by - as you might guess by the name -several other subsystems. Visible to the user, these are mainly:

EAD-Explorer
The EAD-Explorer is the first Front-End application you see when you enter the world of EAD. It provides a Single-Sign-On (one log-on for all) for the different EAD subsystems. It provides a centralized and integrated access to all EAD applications and abolishes the heterogeneous subsystem structure.

Legal Recording
All changes in the system's database are logged for legal proof - this is what is meant by legal recording. This logging is done by every subsystem. Common Services provides a common centralised deposit for this logging procedures and provides tools for investigating this deposit. You will be able to track any data changes down to a user, authority, time slot within an EAD application or throughout different applications.

International NOTAM Operations (Frequentis)

About Frequentis
See description Common Services

Subsystem INO
The INO (International NOTAM Operation) provides facilities for creating, processing, checking, distributing and retrieving international NOTAM and other relevant message data to be handled by EAD. The INO receives requests related to International NOTAM Operation, processes them and returns replies to clients. The INO provides the following functionality:

Message Creation
Message Creation comprises functions to create, edit, store or delete messages. The following messages are supported:

• NOTAM,
• SNOWTAM,
• ASHTAM,
• BIRDTAM,
• AFTN Freetext.

INO Message Processing
INO Message Processing receives different types of messages. The system verifies the format against a pre-defined set of rules and the SDO database. In case of an error, the system reacts by the appropriate error handling. An erroneous message is either stored in a queue for manual processing or rejected and sent back to the message originator. Whether an erroneous message is stored in the message queue or not depends on the message type and the system configuration.

PIB and Message Retrieval
PIB and Message Retrieval comprise different report generator modules to retrieve NOTAM and to format Pre-flight Information Bulletins, NOTAM summaries, and other NOTAM Retrieval products. To reduce the amount of information that must be typed in again and again in case of frequently used inquiries, the EAD staff maintains predetermined profiles. The following kinds of PIB are provided: Aerodrome PIB, Area PIB including special Area PIB, Route PIB, Narrow Route PIB.

Basic Data Maintenance
Basic Data Maintenance comprises various functions used to add new NOTAM related operational data and to read, update or delete existing operational data (Distribution Lists, System Parameters, NOF Profiles, NOTAM Selection Criteria, NOTAM Code);

INO Client Interface Support for ESI
The INO supports a data interface for ESI. Via the ESI an External Client System can subscribe and unsubscribe to NOTAM distribution. Furthermore, the NOTAM data itself is distributed via the ESI. Additionally, Message Creation, PIB and Message Retrieval are provided via ESI.

Use of COTS Products
The INO Data Provider implementation is based on ORACLE Forms and ORACLE database technology.
The INO Data User and Public User are based on state-of-the-art Java Web-Technology.