Lineage completeness

The calculator uses the numbers you enter. With 80 sources, 70 flows, 60 versions, 75 owner, 50 retention the result is Lineage index: 67%. This is not a data catalog.

This is not a data catalog. API exposure is on API exposure.

Input data

Results

Enter data and click Calculate.

How it works

Lineage completeness in this calculator is the mean of five lineage coverage percents. With 80 sources, 70 flows, 60 versions, 75 owner, 50 retention the result is Lineage index: 67%.

index = (l1 + l2 + l3 + l4 + l5) / 5. The formula uses sources and GDPR.

Lineage index: 67% is not a data catalog. Another set of numbers gives Lineage index: 88%, and a further set gives Lineage index: 35%. Empty optional fields do not change the result.

API exposure answers a different question. Fairness gap does too. Here 80 sources, 70 flows, 60 versions, 75 owner, 50 retention leave Lineage index: 67%.

Type 80 sources, 70 flows, 60 versions, 75 owner, 50 retention and click Calculate. Two more ready sets sit under the form: Lineage index: 88% and Lineage index: 35%.

Other numbers on the same labels move the result. The first example gives Lineage index: 67%.

Formula

index = (l1 + l2 + l3 + l4 + l5) / 5.

How to use

  1. Type 80 sources, 70 flows, 60 versions, 75 owner, 50 retention.
  2. Leave optional fields empty if you do not want them in the result.
  3. Click Calculate. This set shows Lineage index: 67%.
  4. The second example under the result is Lineage index: 88%, the third Lineage index: 35%.
  5. This is not a data catalog.

Lineage completeness = Lineage index: 67%

The calculator uses the numbers you enter. With 80 sources, 70 flows, 60 versions, 75 owner, 50 retention the result is Lineage index: 67%. This is not a data catalog.

Lineage completeness
Lineage completeness is this calculator's result. The first example is Lineage index: 67%.
sources
The formula includes sources. The second example gives Lineage index: 88%.
GDPR
The formula includes GDPR. The second example gives Lineage index: 88%.

Examples

Example 1

  • 80 sources
  • 70 flows
  • 60 versions
  • 75 owner
  • 50 retention

Lineage index: 67%

The calculator uses the numbers you enter. With 80 sources, 70 flows, 60 versions, 75 owner, 50 retention the result is Lineage index: 67%. This is not a data catalog.

Example 2

  • 95 sources
  • 90 flows
  • 85 versions
  • 90 owner
  • 80 retention

Lineage index: 88%

With 95 sources, 90 flows, 85 versions, 90 owner, 80 retention the result is Lineage index: 88%.

Example 3

  • 40 sources
  • 35 flows
  • 30 versions
  • 45 owner
  • 25 retention

Lineage index: 35%

With 40 sources, 35 flows, 30 versions, 45 owner, 25 retention the result is Lineage index: 35%.

Related calculators

API exposure

API exposure: score = mean(map15) × 100.

Use calculator →

Fairness gap

Fairness gap: gap = |group A − group B|.

Use calculator →

All AI regulation calculators

Common questions

What do you get from 80 sources, 70 flows, 60 versions, 75 owner, 50 retention?

Lineage index: 67%. This is not a data catalog.

What about the second example?

Lineage index: 88%.

What about the third example?

Lineage index: 35%.

Is Lineage index: 67% a data catalog?

No. It is the result from the numbers you enter.

Do empty fields change Lineage index: 67%?

No. Empty optional fields do not change the result.

How is this different from API exposure?

That calculator answers another question. Here Lineage completeness stays at Lineage index: 67%.

Does a comma in the number work?

Yes. A comma and a dot mean the same in a number field.

Is the result a diagnosis or official opinion?

No. The result comes from the numbers you enter. a data catalog sits outside this calculator.

Do 95 sources, 90 flows, 85 versions, 90 owner, 80 retention give Lineage index: 88%?

Yes. That is the second example under the form.

How is lineage completeness calculated?

The calculator takes the mean of five coverage percents: sources, transforms, versions, owner, and retention. In the first example the result is Lineage index: 67%.

What should I enter in the 0 to 100 fields?

An estimate of coverage for that lineage element, in percent. The five numbers enter the mean with equal weight.

Is this a data catalog?

No. The result is the mean of the coverage figures you enter. The calculator does not read a catalog and does not build a lineage graph.

Do sources weigh more than retention?

No. Sources, transforms, versions, owner, and retention have the same weight in the mean.

Is an empty coverage counted as 0?

No. An empty field does not enter the mean. The formula uses the percents you enter.

Knowledge sources

The terms come from the GDPR. The calculator result is a sketch index, not a fine.

Page updated in 2026.