DIMA (distributed integrated modular avionics) system evaluation and optimization method

The invention belongs to the technical field of aviation equipment design and discloses a DIMA (distributed integrated modular avionics) system evaluation method. The method includes: performing physical layer modeling, and mapping hardware equipment in a DIMA system to a mounting space to create a two-dimensional physical layer mapping vector; performing functional layer modeling, and mapping subtasks in the DIMA system to the hardware equipment according the known system-task-subtask tree to create a two-dimensional functional layer mapping vector; performing priority ranking on multiple performance evaluation indexes, and building a DIMA system multi-target performance description function set; substituting the physical layer mapping vector and the functional layer mapping vector into the DIMA system multi-target performance description function set to obtain a DIMA system evaluation result. The invention further discloses a DIMA system optimization method.