The invention discloses an SOA (
service oriented architecture)-based function development implementation method, which comprises the following steps of: function
demand analysis: splitting functions of a function demand document into finer function units to obtain a plurality of service demands; service architecture design: performing module design of partial
software architecture according to service requirements; and compiling
service design specifications: compiling detailed logic specifications of service requirements and service architecture according to protocol specifications of in-vehicle
service design. According to the function development implementation method based on the SOA, the current whole vehicle development process is optimized based on the
software defined vehicle and servitization thought, the problems that traditional function development is too high in
coupling, too poor in flexibility and the like can be solved, meanwhile, the convenience of
software iteration is improved, the variability and flexibility of user requirements are supported, and the development efficiency is improved. The functional innovation points of the vehicle model are greatly expanded; the method is a software-oriented and service-oriented
design process, and can accelerate the development
rhythm of parts of the whole vehicle and shorten the
development period of the whole vehicle.