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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 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , A universal configuration format for avionicsAvionics module configuration, especially in the face of advancing technologies, will become more complex as computational demands rise. This requires a robust and automated approach while adhering to industry standards. However, state-of-the-art configuration is still highly error-prone and suffers from various stakeholders working with unsynchronized and decentralized data. This causes unnecessary iterations, leading to delays in development. The Universal Configuration Format for Avionics (UCoF), integrated into the AvioNET framework, presents a forward-looking solution.UCoF, built upon a meta-model approach, strives to enhance the configuration process through model-based methods. It meets essential configuration management requirements and offers versatility by supporting the configuration of diverse avionic platforms. Combining essential data for configuring real avionics device families, implementation targets and network design grants users access to a comprehensive data set throughout the configuration process.Publicationtype: Conference Paper20 12 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Seamless transitions from logical to physical avionics architecture models for preliminary aircraft system designThe transition of federated aviation electronics (avionics) systems to Integrated Modular Avionics (IMA) concepts leads to a higher integration of functions, which reduces the amount of equipment and therefore system mass. However, these benefits are accompanied by a strong increase in system complexity and more interdependencies. Moreover, further digitalization and automation of aircraft functions lead to a higher impact of avionics in terms of equipment number and energy consumption. One challenge arises from the fact that the IMA platform design starts in parallel to the design of other aircraft on-board systems, for which the platform shall provide resources like computing power. This leads to a high uncertainty during early design phases on the one hand and to a complex design process including many data and tool interfaces on the other hand. In order to meet these challenges, seamless model-based design approaches are being broadly investigated. For this purpose, standardized and automated interfaces between different design steps, tools, and stakeholders are needed. In this work, a formalized avionics architecture design process is proposed to support a seamless model-based tool chain from systems architecting to detailed system design. Methods to handle uncertainties, to provide standardized model interfaces, and to automate transitions between model abstraction levels are included. Overall, this reduces manual effort and the introduction of errors that would lead to high costs during system implementation.Publicationtype: Conference Presentation100 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Introduction of a dedicated platform level for IMA systems development with an extensive automation tool supportThis paper presents an optimized workflow for development of aircraft systems on an IMA platform by introduction of a dedicated platform level between the module equipment and the aircraft system function. This is capsuled in a model-based development process that considers a shared and clearly defined interface between the different process stakeholders and a logical share of responsibilities. By use of an extensive and sophisticated toolchain at platform level, that utilizes already existing and qualified equipment level toolchains, the configuration creation is highly automated at the design stage. At the V&V stage, a fundamental pillar of development assurance, a platform simulation toolchain for early and continuous validation utilizing a hybrid testing approach is presented that provides a continuous testing capability throughout the development cycle. In the frame of the national German research program TALIA, different stakeholders from industry and academia developed and validated this approach by means of implementing real aircraft system functions.Publicationtype: Conference Paper54 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , A Seamless and End-to-End Approach for Early and Continuous Validation of Next-Generation Avionics Platforms(2023); 31 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , A Model-Based Approach for Early and Continuous Validation of Avionics Platforms up to Virtual Products and Hybrid Platforms(2022-09); ; The trend of today's aviation shows a steadily increasing complexity of avionics systems and related functions. Emerging technologies, such as multi-core avionics, mixed-criticality systems on shared resources, and the adoption of artificial intelligence (AI) in the field of avionics, will accelerate this growth by introducing additional synergies and new constraints. However, this trend makes the complex and non-automated development process of avionics platforms more time-consuming and error-prone. To keep the increasing complexity within reasonable limits and to avoid major design iterations, new methods are needed to continuously validate the design and implementation choices. In this paper, we present a model-based concept for early and continuous validation of avionics platforms under development through all their phases - design, implementation, testing and ultimately, integration.Publicationtype: Conference Paper63 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Avionics Next-Gen Engineering Tools (AvioNET): Experiences With Highly Automised and Digital Processes for Avionics Platform Development(2021-10); Publicationtype: Conference Paper147