Requirements Management Interface    

Viewing Requirements in the Navigator

Use the Navigator to see which objects have requirements associated with them.

Indication of Requirements

After adding a requirement to a node, the shading of the node's icon changes. In the Navigator, you can see which nodes have requirements associated with them by the shading of the node's icons.

The following example shows that nodes for the N block in the valve timing subsystem and the positive edge to dual edge conversion subsystem are shaded, indicating they have requirements associated with them. The nodes under the positive edge to dual edge conversion subsystem are lightly shaded, indicating they belong to a subsystem that has requirements associated with it.

Figure 1-8: Navigator Showing Simulink Nodes That Have Requirements

The shading of a node's icon indicates whether or not it has associated requirements, as shown in the following table.

Table 1-1: Node Icons in Navigator and What They Represent  
Node
Shading
What It Represents

Not shaded
Simulink subsystem with no requirements

Shaded
Simulink subsystem that has requirements

Lightly shaded
Simulink subsystem belonging to a subsystem that has requirements; subsystem itself has no requirements

Not shaded
Simulink block with no requirements

Shaded
Simulink block that has requirements

Lightly shaded
Simulink block belonging to a subsystem that has requirements; block itself has no requirements

Not shaded
Stateflow chart with no requirements

Shaded
Stateflow chart that has requirements

Lightly shaded
Stateflow chart belonging to a subsystem that has requirements; chart itself has no requirements

Not shaded
Stateflow state with no requirements

Shaded (with yellow)
Stateflow state that has requirements

Lightly shaded
Stateflow state belonging to a superstate, chart, or subsystem that has requirements; state itself has no requirements

Not shaded
Stateflow transition with no requirements

Shaded (with blue)
Stateflow transition that has requirements

Lightly shaded
Stateflow transition belonging to a superstate, chart, or subsystem that has requirements; transition itself has no requirements

Not shaded
MATLAB M-file with no requirements

Shaded
MATLAB M-file that has requirements


 How To Add a Requirement Stateflow Chart with Requirements