IBM i Reporting Governance and Semantic Layer

The Dashboard Is Not The Authority Layer

Power BI and reporting tools make IBM i data visible. They do not automatically make the data trusted. Authority comes from the controls that make a report defensible.

That is why reporting governance is the next layer after basic AS400 Power BI integration.

• Shared definitions
• Controlled access
• Known refresh rules
• A clear owner for each measure

Define Approved Data Sets

Start by deciding which datasets are approved for each reporting audience. Approved datasets keep analysts from rebuilding the same logic directly from raw transactional files with slightly different joins each time.

• Finance
• Operations
• Sales
• Inventory
• Executive reporting
• Analyst exploration
• Owner
• Source tables
• Refresh timing
• Security rules
• Known exclusions

Build Shared Measures

Common measures should be defined once. A semantic layer lets dashboards reuse those definitions instead of encoding them separately in every report.

That matters because small formula differences can create large trust problems when leadership sees conflicting numbers.

• Sales
• Margin
• Open orders
• Backorders
• Inventory availability
• Shipment status
• Customer status
• Aging

Assign Ownership And Change Control

Every shared definition should have an owner who approves changes. Change control keeps reports tied to the business logic that makes IBM i valuable in the first place.

• Application field changes
• ERP rule changes
• Dashboard calculation updates
• Documentation
• Communication

Connect Governance To Buying Decisions

Buyers evaluating reporting software should ask whether the tool supports governance at scale. The right reporting platform helps the team preserve trust as dashboard count grows.

• Shared models
• Certified datasets
• Row and field security
• Refresh monitoring
• Lineage
• Usage visibility

Common questions about this Reporting Governance topic.

What is a semantic layer for IBM i reporting?

A semantic layer is governed reporting logic that tools can reuse instead of rebuilding directly from raw Db2 for i tables.

• Shared definitions
• Relationships
• Measures
• Datasets

Why does AS400 reporting need governance?

Governance prevents reporting drift as more business users depend on IBM i data.

• Conflicting definitions
• Uncontrolled extracts
• Weak security
• Refresh confusion
• Dashboard drift

Sources

• Microsoft Power Query IBM Db2 connector