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@startuml provenance-lineage
!theme plain
title Provenance and Lineage Tracking
component "Base Tuple\n(employee)" as T1
note right of T1
**Data:**
id = 1
name = "Alice"
age = 30
salary = 100000
**Meta:**
provenance:
id: (employee, id)
name: (employee, name)
age: (employee, age)
salary: (employee, salary)
lineage: (base, employee)
end note
component "After Select\n(age > 25)" as T2
note right of T2
**Data:**
id = 1
name = "Alice"
age = 30
salary = 100000
**Meta:**
provenance: (same as above)
lineage:
select
fun(T) -> age > 25 end
(base, employee)
end note
component "After Project\n[name, age]" as T3
note right of T3
**Data:**
name = "Alice"
age = 30
**Meta:**
provenance:
name: (employee, name)
age: (employee, age)
lineage:
project
[name, age]
(select, _, (base, employee))
end note
T1 -down-> T2: select operation\nadds to lineage
T2 -down-> T3: project operation\nfilters provenance
note bottom of T3
**Benefits:**
- Data source tracking
- Query result explanation
- Reproducibility
- Debugging support
- Foundation for updatable views
end note
@enduml
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