airport-cdm-manual-2017 (1)

3.2.2.2 Information Standards
Format of the data is essential to avoid inconsistencies
or data recognition problems. As different partners
have different formats, filters and converters should be
specified and developed in order to interface different
systems and avoid data problems.
Efficient implementation requires that the standards
used, including data conventions, are universally acceptable.
The standards used must also satisfy the
safety, security and reliability requirements, without
creating an overkill situation and increasing costs unnecessarily.
As a minimum, an agreement must be
reached between all partners concerned in respect of
the format and data conventions of the messages to
be exchanged. (see Attachment 3.1 for a sample of
a MoU)
Agreement on computer platforms and operating system
aspects can provide substantial savings and is
highly recommended. Incorporation into an existing
system will require a different approach from that of a
completely new implementation.
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n It is recommended that new implementations
use a PC platform and an operating
system with good connectivity and compatibility
n Message formats must have at least AD-
EXP support
n Web-based solutions are a good way of
ensuring access at minimum cost
3.2.2.3 Real-Time Information Transmission
Delivery of updated data to the central platform is essential
to let others react on latest information. Hence
those databases and the transmission channels require
real-time performance of updating, and have database
calculation functions acting upon new information
designed both event and time driven.
3.2.2.4 Platform Procedures and Processes
Both generic and local processes are developed to enable
scenarios to occur with the appropriate responses.
Generic processes have been developed for the Milestone
Approach Element (see chapter 3.2), and operational procedures
are planned for de-icing and pre-departure (offblock)
Sequencing. Local procedures closely following
the functional requirements ensure, in themselves, a high
degree of uniformity.
3.2.2.5 Alert Messages
Alerting is an important result of information sharing and
information processing. Once new information is derived
out of parameters that have entered the Airport CDM platform,
it must be validated whether the value of the new information
is compliant with tolerances and limits. Processes
defined in the attachment will provide what parameters
need to be checked, and what message shall be send to
the relevant partners after an inconsistency is detected.
3.2.2.6 Human-Machine Interface (HMI)
General considerations
It is recommended that the functionality of Airport CDM
Information Sharing is implemented as a software application,
utilising a standard windowing interface in order
to keep costs to a minimum. This Implementation Manual
will not give specific solutions, however a number of
guidelines are provided in order to ensure that the various
local implementations are consistent with each other.
Whilst certain details may be subject to local adaptation,
many of the HMI features are common, irrespective of the
location.
Some of the information processed by the software application
may be commercially sensitive or may not be
freely disclosed for security reasons. Such data and / or
the results of the calculations must be protected by the
HMI. It is recommended that this is best achieved by the
use of User Profiles.
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