Search Results items




The ENG_REVISED_ITEMS table in Oracle E-Business Suite (EBS) 12.1.1 and 12.2.2 is a critical repository for managing engineering item revisions within the Engineering (ENG) module. This table stores historical and current revision details of items that undergo engineering changes, ensuring traceability and compliance with manufacturing and product lifecycle management processes. Below is a detailed analysis of its structure, functionality, and integration within Oracle EBS.

Purpose and Functional Context

The ENG_REVISED_ITEMS table supports Engineering Change Orders (ECOs) by tracking revisions to item attributes, such as descriptions, specifications, or bill of materials (BOM) structures. It enables organizations to maintain version control, audit trails, and seamless transitions between item revisions during production or procurement. This is particularly vital in industries like aerospace, automotive, or discrete manufacturing, where regulatory compliance and change management are stringent.

Key Columns and Data Structure

The table's schema includes columns such as:
  • INVENTORY_ITEM_ID: References MTL_SYSTEM_ITEMS_B.INVENTORY_ITEM_ID to link to the base item.
  • ORGANIZATION_ID: Specifies the inventory organization where the item is revised.
  • REVISION: Stores the alphanumeric revision identifier (e.g., "A", "B", "1.1").
  • EFFECTIVITY_DATE: Indicates when the revision becomes active.
  • CHANGE_NOTICE: Ties the revision to an ECO from ENG_CHANGE_ORDERS.
  • STATUS: Reflects the revision's lifecycle state (e.g., "Pending", "Approved").
Additional columns may include timestamps, last updated by, and descriptive attributes modified during revision.

Integration with Oracle EBS Modules

  1. Inventory Management: Revisions sync with MTL_SYSTEM_ITEMS_B to reflect changes in stock items.
  2. Bills of Material: Revisions trigger updates in BOM_BILL_OF_MATERIALS for component hierarchies.
  3. Work in Process (WIP): Ensures revised items align with active production orders.
  4. Procurement: Purchase orders reference the correct revision via PO_REQUISITION_LINES_ALL.

Technical Considerations

  • Indexing: Composite indexes on INVENTORY_ITEM_ID, ORGANIZATION_ID, and REVISION optimize query performance.
  • APIs: The ENG_ITEM_REVISION_PUB package manages CRUD operations programmatically.
  • Data Retention: Historical revisions are retained for compliance, potentially requiring archival strategies.

Business Process Flow

A typical workflow involves:
  1. An ECO is created in ENG_CHANGE_ORDERS.
  2. Item revisions are logged in ENG_REVISED_ITEMS with effectivity dates.
  3. Upon approval, dependent modules (e.g., BOM, WIP) are updated via Oracle's internal APIs.

Customization and Extensions

Organizations may extend the table's functionality by:
  • Adding custom columns via Descriptive Flexfields (DFFs).
  • Developing triggers to enforce business rules (e.g., revision numbering conventions).
  • Integrating with PLM systems for bidirectional data flow.

Conclusion

The ENG_REVISED_ITEMS table is a cornerstone of Oracle EBS's engineering change management, ensuring data integrity across manufacturing and supply chain processes. Its design facilitates compliance, operational efficiency, and seamless integration with core EBS modules, making it indispensable for organizations managing complex product lifecycles.