Short Description
A Pattern Constraint describes an event that exhibits a known pattern relative to the occurrences of a reference event. By supplementing by a Periodic Constraint on the reference event the pattern can be constrained to repeat periodically.
Links to TADL2 concepts
· PatternConstraint
· PeriodicConstraint
· Event
· TimingExpression
Abstraction level specific list of applicable events
Pattern event can be applied to any type of events, see support material below.
Context Specific Example
pattern = patternConstraint {
event e
reference ref
offset 10 ms, 30 ms
jitter 10 ms
minimum 20 ms
}
period = periodicConstraint {
event ref
period 80 ms
}

Figure 1. The pattern of the occurrences of event e repeat periodically.

Figure 2. The reference event in the pattern constrained to be periodic.
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