A package or groups of packages that form one or the six components of a system They are one of the following: Human Machine Interface, Simulation, Actuators, Sensors, Communications/Connectivity, and Machine Intelligence
A data acquisition hardware component that performs a specific task The Data Acquisition Toolbox supports analog input, analog output, and digital I/O subsystems
A subsystem is a grouping of model elements, of which some constitute a specification of the behavior offered by the other contained model elements See package Contrast: system
Functional part of a system, and often used interchangeably with that term (e g , the guideway and controls of a rail transit system, the heating subsystem of the HVAC system)
A typical example of a subsystem is the first (qu)bit in a system consisting of two (qu)bits In general, to obtain a subsystem of system , one first selects a subset of 's state space and then identifies as the state space of a pair of systems Each member of the pair is then a subsystem of Restrictions apply depending on the types of information carried by the system and subsystems For example, if is quantum and so are the subsystems, then has to be a linear subspace and the identification of the subsystems' state space with has to be unitary
A collection of device and subsystems A subsystem is analogous to a sub-directory in a file system which contains files and other sub-directories Subsystems are often organized physically (for example, a building that contains floors, each of which contains rooms) or functionally (for example, a process that contains stamping stations, the conveyor system, and inspection stations) A single device can appear in multiple sub-systems
A processing component addressable through SCCP Examples include a Home Location Register (HLR) in a wireless system or an 800 number translation database