Aerospace and Electronic Systems Magazine November 2017 - 12

Provisioning for a Distributed ATM Security Management: The GAMMA Approach

Figure 3.

Project specific meta-model and link to NAF views.

C

C

C

C

C

NSV-6c: Considers the identified threats, the actors involved, their interactions and the impacts on PA and SA that
should be protected. These models help to ensure that the
architecture solution actually covers the considered threats;
NOV-2: Describes operational nodes used in threat scenarios
and in operational processes;
NOV-5: Presents the ATM security-related operational processes and activities performed in the operational nodes;
NOV-7: Establishes a high level model for the information
exchanges between ATM nodes;
NSV-1: Defines the high-level ATM security solution system functions and their interactions through interfaces
among the system elements with special focus on:
information exchanges between two instances of the SMP
identified at national and European levels;
information exchanges of each security system with SMP
at the national level.

12

C

C

NSV-3: Helps to check the interface consistency by a system-to-system matrix presenting the summary of interfaces;
NSV-4: Specifies the functional decomposition and the
flows among the systems involved in the solution.

Figure 3 presents the views produced in relation to the concepts
defined within project-specific meta-model.
The architecture activities have defined a comprehensive
solution based on principles, concepts, and properties logically related and consistent with each other. Figure 4 presents a
high level view depicting interfaces between SMP and the other
systems. In Figure 4, only the colored blocks have been implemented in GAMMA for validation purposes. The developed architectural views have been reported in GAMMA Deliverable
D4.3 [17] and extensively used in different phases of the project,
especially for developing the specification of the entire solution, defining the information flow between systems' elements,
building the system-level prototypes, and in carrying out the
validation activities. After the architecture is defined, the validation scenarios are modeled (as NSV-4 views) to specify the

IEEE A&E SYSTEMS MAGAZINE

NOVEMBER 2017



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