5136-DNP-PCI SST
System design is the process of designing a new system that can meet the required goals (or objectives) to the maximum extent possible based on the results of system analysis and the ideas and methods of system science. System design content, including determining system functions, design policies and methods, generating ideal systems and making drafts, revising drafts through information collection to generate optional design solutions, decomposing the system into several subsystems, conducting detailed design and evaluation of subsystems and overall systems, demonstrating system solutions, and making performance and effect predictions
When designing a system, it is necessary to consider both the object system to be designed and the environment surrounding it. The former is called an internal system, while the latter is called an external system. There is a mutual support and constraint relationship between them. The combination of internal and external systems is called the overall system
Therefore, in system design, it is necessary to adopt the thinking principle of combining internal design with external design, comprehensively considering various aspects of the overall system’s function, input, output, environment, program, human factors, and material media, to design the overall optimal system.
The system design should adopt a work method of decomposition, synthesis, and feedback. No matter how large a complex system is, it must first be decomposed into several subsystems or elements. Decomposition can be carried out from aspects such as structural elements, functional requirements, time series, spatial configuration, etc., and its characteristics and performance can be standardized to synthesize into the optimal subsystem. Then, the optimal subsystem is designed as a whole to obtain the optimal system.
In this process, from the beginning of the design plan to the design of a satisfactory system, a phased and overall comprehensive evaluation should be carried out, and various work should be modified and improved accordingly. The entire design phase is a comprehensive feedback process
Two methods are usually used in system design: induction and deductive reasoning. The program for applying induction to system design is to first collect as much system design information as possible from existing and past similar systems
