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58 Integrating Airport Information Systems
the legacy systems to the new systems. Because the different business and data requirements for
each location were not considered, business rules for the data were not properly applied before
implementation. After the system had been deployed to only one county, these irregularities were
discovered.
For the State of Colorado, the experience was costly and is an indication that any organization
can experience integration problems surrounding disparate legacy systems similar to those found
in many airports today.
The remainder of this chapter discusses typical airport systems and the problems inherent in
trying to integrate data from them, in the following sections:
· Research Conclusions,
· Disparate Data Sources,
· Systems Examination, and
· Information System Samples.
Research Conclusions
During the research for this Handbook, the project team examined lessons learned in various
industries, including the aviation industry. The suggestions that follow are drawn from some of
the more important lessons learned.
Data
Airports should own the data in a format usable for the airport and should identify the cur-
rent systems that use the data as well as the format, structure, and architecture of each.
Data Processes
Data processes have multiple levels of maturity, therefore understanding and identifying each
level helps ensure successful data rule implementation. Understanding processes that are paral-
lel with each other but housed in different systems also helps identify the rules and set the prior-
ities of the processes and systems.
Standards
Worldwide standards organizations provide central repositories where terminologies and def-
initions are maintained and assist in data interchange format standards, which are technology
driven. Using data standards, such as metadata registries, enables airports to set standards for
communicating between systems and government agencies. Some of these standards-setting
organizations have teamed with the FAA to facilitate aviation standards. When an airport is plan-
ning the integration of many systems, these standards should be taken into account.
Phased Approach
As discussed in Chapters 2 and 3 of this Handbook, when an airport is considering many
systems in its integration plan, using a phased approach, rather than trying to integrate all
systems at an airport, can increase success rates. In addition, an airport should look at the sys-
tems identified in the vision and evaluate each system within each phase. It might not be neces-
sary to integrate every system to achieve the vision. Everything from all systems might not be the
best approach for an older airport with many disparate legacy systems.
