Engineering Change Orders: Definition, Process, and Best Practices

The Challenge: Who Has What Drawing?

The energy operator’s engineering drawings were scattered across a web of external firms, with different companies managing documentation for different locations. With a variety of engineering consultants handling their plant portfolio, there was no single source of truth. 

For a team trying to bring order to a multi-site, multi-vendor drawing environment, the core issue wasn’t a single missing feature. It was visibility. Without a central system of record, tracking drawing ownership and status across external parties was largely a matter of asking around. 

“During the establishment of the drawing office, all our drawings were handled externally by consultants, different sites are were maintained by different companies. Biggest issue is knowing who had what drawing.”

- Senior Mechanical/ Piping Designer

Why EngineBox?

The team evaluated several document management platforms against a defined set of requirements. eQuorum’s EngineBox checked the boxes it needed.

Two factors set us apart from the alternatives: built-in workflow capability for routing drawings through review and approval, and a fully cloud-hosted architecture with browser-based software that required no local software installation to access drawings.

For a drawing office coordinating with external consultants across multiple sites, removing the friction of client installs was a meaningful advantage. Anyone with credentials and a secure internet connection could get to the right document without IT involvement at the requesting end.

Bringing Structure to a Multi-Site, Multi-Consultant Environment

With EngineBox in place, the operator established a clear system of record for its engineering drawings, defining ownership at every stage of a project's lifecycle. That structure gave the drawing office something it didn't have before: a definitive answer to "who has the current version," regardless of how many external consultants were involved on a given site.

Day-to-day, that structure is reinforced by disciplined document control practices, including check-out procedures that flag when a drawing is in active use, supported by eQuorum's Document Version Control and Configuration Management capabilities. As with any system change, adoption is an ongoing process; the team has found that most instances of version confusion trace back to users still getting comfortable with the check-out workflow, rather than a limitation of the system itself.

For coordination with outside consultants and contractors specifically, capabilities like 3PDirect give external parties secure, trackable access to view, download, and markup drawings (including CAD files) without the back-and-forth of emailing files or granting network access. That matters for an operation like this one, where different sites are maintained by different outside firms and the drawing office needs a reliable way to know who has touched what.

Remote Access that Removes a Dependency, Not Just a Convenience

EngineBox is browser-based; day-to-day users across the operator’s sites can reach current drawings with nothing more than a login and a secure connection. There’s no client software to install or maintain. 

For the drawing office itself, remote access is less about a single dramatic moment and more about a dependency that quietly disappeared: nobody has to be at a particular desk, on a particular machine, to get to the right drawing. 

The same cloud accessibility played a direct role in how the team prepared for maintenance windows and unplanned outages. As part of adopting EngineBox, the team was able to retire paper copies of less-critical drawings at some sites; copies that had previously required constant manual updating every time a change was made and replace them with direct site access to the system. 

It’s a small operational shift with an outsized payoff: less time spent reconciling paper against the master record, and less risk of a site working from a drawing that’s simply wrong. 

The Result

By moving to EngineBox, this energy operator replaced an informal, consultant-by-consultant approach to drawing management with a single, cloud-hosted system of record. EngineBox gives the central office clear visibility into drawing ownership across sites; it gives day-to-day users frictionless remote access without local installs.

As cost pressure continues to shape how energy operators manage their engineering documentation, this team is now positioned to extend that same system into new use cases, including decommissioning workflows, without re-architecting how the team works.

“More and more there’s a drive to cut cost where we can and one of the things identified is when decommissioning an asset”

- Senior Mechanical/Piping Designer