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Integrated modular architectures and IMA reduce the physical complexity of electronic architecture by integrating many functions on common embedded resources. As the reduction of physical complexity means that the embedded resources are shared by many functions, the logical complexity of system configuration, functional alignment and resource sharing increases significantly. Modern integrated embedded platforms are designed for parameter-based architecture design and integration. IMA is not only a set of platform components, networking and computing devices and configurable middleware and platform abstraction layers. Integrated Architectures and IMA require mature design and verification tools, and a well-defined design and integration methodology are required to avoid expensive and error-prone manual analyses and configuration tasks. Therefore, integrated architectures cannot be separated from design methodologies and processes.

VPX, as a switched fabric, supports the design of advanced integrated systems using technologies such as deterministic Ethernet. Deterministic Ethernet can be used in backplane and backbone applications. In cases where functional interrelationships and Ethernet network bandwidth sharing is deterministic and all logical links among critical function have configurable quality of service with guaranteed timing, the complexity challenges in design of advanced integrated architectures can be much simpler to handle and mitigate. VPX switches in 3/6U format with ARINC664 and SAE AS6802 services enable deterministic integration of many critical functions hosted on common embedded computing and networking resources. Both ARINC664 (asynchronous real-time) and SAE AS6802 (synchronous hard real-time), as Layer 2 enhancements, do not affect existing Ethernet services.