Task: Define System Boundary
AnalysisLevel represents the vehicle electrical/electronic system in terms of its abstract functional
Definition.


The boundary between the system and its environment is defined in an abstract functional style.
Purpose
Serves to clarify what is part of the system and which information is exchanged between the system and its environment. This includes the functional analysis architecture (FAA), which represents the functional structure.
Relationships
RolesPrimary: Additional: Assisting:
InputsMandatory: Optional:
  • None
External:
  • None
Outputs
Main Description
AnalysisLevel – Define System Boundary - represents the vehicle electrical/electronic system in terms of its abstract functional definition. It defines the logical functionality and a logical decomposition of functionality regarding the system boundary. Steps:
There is an iterative refinement in the modeling technique consisting of a static and dynamic view. In the static view the modeling is driven by a modularization and hierarchisation approach. In the dynamic view signals are defined between functional devices and external blocks. Repeat until desired level of detail is reached.
Steps
Specify external blocks
Specify the entities in the environment that are connected to the system.
Specfy functional devices
Specify signals between external blocks and functional devices
Properties
Multiple Occurrences
Event Driven
Ongoing
Optional
Planned
Repeatable