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Classes Overview

Feature Description

 

What are Classes?

 
Classes are a method of categorizing the functions and failure modes within a design so that states and tests can be automatically generated for a specific aspect of a signal.  Two types of classes exist to categorize the various failure types:
 
Function Classes - shown in blue in Classes Folder
Failure Classes - shown in red in Classes Folder
Hierarchical Classes may be assigned to function classes to extend the class to lower-levels of the design. These need to be linked Manage Hierarchical Classes  by the analyst to correspond with the entities of the lower model.
 

When to Use Classes

Classes may be used to define the coverage of tests or the set of active functions in an object state or design state. Classes should also be used when separate aspect of a signal along a single net need to be filtered when developing tests and states.  The classic example is a flow-oriented system—such as a cooling system or a fuel system. The substance in circulation usually has multiple, separately testable characteristics, such as temperature, pressure and flow.
 
 
 
 
 
 
 
Clipboard Operations
Defining a Class
Assigning Classes
    On Output Functions
    On Failure Modes
    On Object States
    On Design States
    On Tests
Create Function Class
Changing Class Type
Link Hierarchy
Basic Operations when working with Classes
 
 
 
 
 
Class Operations
      3 methods for defining Classes
Add Description in Context Description Field
Select Type in Context Panel window "Type"
     To link class to Lower Level Class
Use for Deleting Class
Use for copying Class to make modified new class
Use for pasting copied Class to make modified new class
Use for Deleting Class