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Item type:Publication, Access status: without files , MBSE framework for developing data-driven passenger services in aircraft cabinsThe aircraft cabin plays a crucial role in airline differentiation strategies, particularly when introducing novel, data-driven services. These services aim to enhance the passenger experience during the flight and to improve cabin crew efficiency in order to reduce workload and ensure continued growth of airline revenue. Digitalization and extensive exchange of information across the entire aircraft transport system have emerged as key enablers for these services. The development of aircraft and aircraft systems that realize these services is characterized by a multi-level development process. Various development levels are considered to initially identify the functions of an aircraft in the air transport system, refine its systems and break them down into their components until a level of detail is reached that allows the implementation of the component functions. In addition to the high complexity, a major challenge in this development is to ensure traceability and consistency across the various development levels. Consequently, Model-Based Systems Engineering (MBSE) is increasingly applied in aviation to address these challenges. While numerous MBSE frameworks and methodologies exist, they often overlook the specific requirements of aviation's multi-level development process. Hence, this paper introduces an MBSE framework tailored to the development of novel, data-driven passenger services, along with the corresponding aircraft systems, across multiple development levels. The framework ensures seamless model-based information flow across all levels by providing a development workflow, which encompasses various viewpoints at each development stage and incorporates aviation-specific regulatory and operational considerations. Additionally, given the digitalized nature of these services and the resulting interconnected systems, relevant cybersecurity information is captured within certain viewpoints at each development level, thereby ensuring the development of secure systems.Publicationtype: Conference Paper59 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Interconnected and data-driven aircraft cabin systems: consistent integration of ARINC 853 messaging standard into model-based aircraft systems development<jats:p><div class="section abstract"><div class="htmlview paragraph">Increasing digitalization of the aircraft cabin, driven by the need for improved operational efficiency and an enhanced passenger experience, has led to the development of data-driven services. In order to implement these services, information from different systems is often required, which leads to a multi-system architecture. When designing a network that interconnects these systems, it is important to consider the heterogeneous device and supplier landscape as well as variations in the network architecture resulting from airline customization or cabin upgrades. The novel ARINC 853 Cabin Secure Media-Independent Messaging (CSMIM) standard addresses this challenge by specifying a communication protocol that relies on a data model to encode provided and consumed information. This paper presents an approach to integrate CSMIM-specific communication concepts into a Model-Based Systems Engineering (MBSE) framework using the Systems Modeling Language (SysML). This enables a streamlined model-based method to design and implement aircraft cabin systems interconnected through a CSMIM-based communication network as well as to create airline-customized configurations. Based on the Cabin Data and Communication Modeling Language (CDACML), a SysML mean to link system interfaces with the CSMIM data model across multiple development levels is proposed. Multiple development levels as part of the left side of the widely-accepted V-model are supported to enable a model-based handover into the system level, for example, reducing the risk for interface inconsistencies. The link to the CSMIM data model is designed such that it can be used to extract system interface definitions for implementation activities through Model-to-Text (M2T) transformations. To show the validity of the approach, a smart aircraft seat occupancy detection use case is designed using the proposed approach as part of the activities of the left side of the V-model including the development of a prototype CSMIM communication module. The communication module is then deployed on networked hardware that is configured through a M2T transformation and which is technically realizing this use case.</div></div></jats:p>Publicationtype: Conference Paper80 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Assignment criteria for function allocation to commercial aviation system security domainsAircraft cabin management is characterized by operational and business processes. Both are defined as a logical sequence of activities that occur during the flight. While the operational process includes activities to ensure flight safety, such as take-off, cruise and landing, the business process activities are related to adding value to the customer, i.e. the passenger. They are to be certified by the authority as a part of the aircraft type certification. These processes are defined by the airline and are described as part of the airline's business model. While the scope of operational processes for passenger safety within the aircraft cabin should remain as unchanged as possible, the increasing competitive pressure on airlines is leading to a constantly rising number of services in the cabin. To prevent compromising cabin safety from increased cabin crew workload during the cruise phase, there is a growing trend toward digitizing operational and business processes. The digitized operational and business processes are leading the aircraft cabin systems to access information from different domains. The emerging need for digitalization, along with essential networking capabilities, has led to the development of an aircraft security domain model that groups functionalities based on system security considerations. For this domain model, partitioning, isolation, controlled communication, and security policies are specified. However, it lacks guidance on function allocation to specific domains. This paper addresses this gap by proposing assignment criteria for the allocation of functions to aircraft security domains, making the security domain standards easier to apply in daily aviation system development.Publicationtype: Conference Paper28