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# Conversational Development Index
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> [Introduced](https://gitlab.com/gitlab-org/gitlab-ce/issues/30469) in GitLab 9.3.
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NOTE: **Note:**
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Your GitLab instance's [usage ping ](../admin_area/settings/usage_statistics.md#usage-ping-core-only ) must be activated in order to use this feature.
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The Conversational Development Index (ConvDev Index) gives you an overview of your entire
instance's adoption of [Concurrent DevOps ](https://about.gitlab.com/concurrent-devops/ )
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from planning to monitoring.
This displays the usage of these GitLab features over
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the last 30 days, averaged over the number of active users in that time period. It also
provides a Lead score per feature, which is calculated based on GitLab's analysis
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of top-performing instances based on [usage ping data ](../admin_area/settings/usage_statistics.md#usage-ping-core-only ) that GitLab has
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collected. Your score is compared to the lead score of each feature and then expressed as a percentage at the bottom of said feature.
Your overall index score is an average of all your feature score percentages - this percentage value is presented above all the of features on the page.
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The page also provides helpful links to articles and GitLab docs, to help you
improve your scores.
Usage ping data is aggregated on GitLab's servers for analysis. Your usage
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information is **not sent** to any other GitLab instances. If you have just started using GitLab, it may take a few weeks for data to be
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collected before this feature is available.
