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Ostentus

What it is

Ostentus presents evidence for depositions, trials, and arbitrations directly from RelativityOne. Legal teams can prepare and sequence documents, pages, paragraphs, or individual points, including repeated items. Practice Mode supports simulated witness examinations and mock trials before a hearing. During presentation, participants can independently zoom, scroll, and examine evidence. RelativityOne user-group permissions create personalized views, allowing legal teams to keep private analysis while limiting what witnesses and others see. The presenting party can control display cadence or use a hot-seat operator. Ostentus automatically preserves a defensible electronic record of presented evidence that can be accessed, downloaded, and distributed during or after the hearing. Delium says users and data remain within RelativityOne, avoiding presentation exports and imports, while RelativityOne security protects data and analysis. The product integrates with existing RelativityOne functionality and workspace evidence. Delium offers demonstrations and brochure downloads; pricing is available on request.

For and against

For

  • Works directly from RelativityOne
  • Supports sequenced evidence lists
  • Includes simulated witness examinations
  • Provides personalized evidence views
  • Preserves a downloadable presentation record

Against

  • Pricing is available on request
  • RelativityOne is required
  • Designed for legal hearing presentations

The verdict

Ostentus combines evidence sequencing, controlled participant views, practice tools, and presentation records inside RelativityOne. Its fit depends on legal teams already using that environment and seeking an integrated hearing workflow.

Who it suits

It is suited to legal teams presenting organized evidence in hearings managed through RelativityOne. Teams needing participant-specific views, practice sessions, and presentation records may find its feature set relevant.

On the record

Availability information
The Ostentus page offers a demonstration and a brochure download; it does not state a public price or trial terms.delium.com · read 9 Oct 2026
Data handling
The maker says Ostentus eliminates evidence exports and imports for presentation from the RelativityOne workspace.delium.com · read 9 Oct 2026
Integration
Ostentus integrates with existing RelativityOne functionality and retains access to workspace evidence and analysis during presentation.delium.com · read 4 Oct 2026
Interactive evidence
Hearing participants can independently zoom, scroll, and examine presented evidence.delium.com · read 9 Oct 2026
Maker
Delium lists offices in Brisbane, Australia, and Edinburgh, United Kingdom.delium.com · read 9 Oct 2026
Maker history
Delium’s story page says Systematics was incorporated as a specialist legal technology consultancy in 1979.delium.com · read 4 Oct 2026
Participant interaction
Hearing participants can independently zoom, scroll, and examine presented evidence.delium.com · read 4 Oct 2026
Patented functionality
Delium says its functionality is patent-protected and lists granted patents in the United States, Australia, and Canada.delium.com · read 4 Oct 2026
Patent protection
The maker describes Ostentus as built on patent-protected functionality.delium.com · read 9 Oct 2026
Permissions
Ostentus uses RelativityOne user group permissions to give participants personalized evidence views while limiting what witnesses and others see.delium.com · read 4 Oct 2026
Personalized access
Ostentus uses RelativityOne user group permissions so legal team members can retain private analysis while witnesses see only permitted material.delium.com · read 9 Oct 2026
Practice Mode
Practice Mode supports simulated witness examinations and mock trials ahead of a hearing.delium.com · read 9 Oct 2026
Preparation
Users can prepare and sequence evidence, including specific documents and pages, for presentation.delium.com · read 9 Oct 2026
Presentation control
The presenting party can control the display cadence or use a hot-seat operator.delium.com · read 9 Oct 2026
Presentation log
Ostentus automatically creates and preserves an electronic record of evidence shown, available to access, download, and distribute during or after the hearing.delium.com · read 9 Oct 2026
Purpose
Ostentus presents evidence at depositions, trials, or arbitrations directly from RelativityOne.delium.com · read 9 Oct 2026
RelativityOne integration
Ostentus operates within RelativityOne, keeping users and their data in that environment and preserving access to its analysis and functionality.delium.com · read 9 Oct 2026
Security
The maker says Ostentus data and analysis remain within RelativityOne security and benefit from Relativity’s Calder7 security team.delium.com · read 9 Oct 2026

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