Abstract:

In the era of vehicle defined by software， function experiences change every day. The signal -oriented architecture development mode can not meet the expectations of users for rapid function delivery， and is gradually replaced by service-oriented architecture. In this paper， the relationship between the key elements of the function-oriented architecture development process i.e. function， system and component is discussed and the modeling method and practice based on function architecture at the system level are proposed.At the same time， combined with the development practice of Geely Automobile， the organization of the function-oriented development mode is proposed. It is suggested that the system engineer should be responsible for the modeling of the function architecture at the system level and promote the implementation. Finally， the importance of functional architecture in service-oriented architecture and agile development process is prospected.

Key words: signal-oriented architecture, service-oriented architecture, functional architecture, dependency matrix, system modelling