delta visualization docs

docs/admin-gui/delta-visualization.adoc

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+= Delta visualization
+:page-toc: top
+:page-since: "4.7"
+:page-midpoint-feature: true
+:page-upkeep-status: green
+
+== Introduction
+
+Object delta objects are being shown on multiple pages (focus preview save, approvals, audit event details, etc.).
+Until this release it always displayed whole set of changes with all technical details.
+
+Changes with all details made it harder to read, mainly for less technical users like managers or helpdesk operators.
+
+.Old view
+image::preview-old.png[Old preview page,100%]
+
+Starting with midPoint 4.7 there will be two options to show object deltas - simple and advanced.
+
+Simple view will hide unnecessary information.
+For example when assignment is being added to user, non-technical user reviewing changes doesn't have to see all assignment attributes like subtype, extension, etc.
+In case of adding account - user doesn't need to know that it's `InetOrgPerson` with `kind=account` and `intent=default`.
+Label "Account *carla* (default) created on *Company OpenLDAP*" should be enough.
+
+Currently, this simplification happens for changes related to:
+
+* Assignments
+* Credentials
+* Activation
+* Shadows
+
+.New simple view
+image::preview-new-simple.png[New simple view,100%]
+
+Advanced view will still show all information related to object delta as it used to.
+
+.New advanced view
+image::preview-new-advanced.png[New advanced view,100%]