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title: Use cases | Athion
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Use cases

# Athion is built for your plant's hardest problems.

Whether a plant is being built, changed or run, the same problems keep coming back: documents that disagree, issues nobody can trace, and projects stacked on top of a running plant. Each one below is a problem Athion is built to solve.

## Greenfield design

Find the surprises before FAT. New builds, where the design is tested before anything is configured.

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[![An engineer in a hi-vis vest at a desk with three monitors showing Athion.](https://www.athion.io/hubfs/athion-site/g-case-fat.jpg)For the project that can't afford a surprise at FAT.](https://www.athion.io/use-case?case=fat&hsLang=en)

Stress-test your process before design freeze. Process, automation and validation engineers walk the sequence together in Athion, before anything is configured.

[![Two people in hard hats leaning over a plan drawing spread on a table, comparing it.](https://www.athion.io/hubfs/athion-site/photo-drawing-review.jpg)For the sister site built to match.](https://www.athion.io/use-case?case=sister&hsLang=en)

Athion keeps your proven phases and equipment classes in one library, so the second plant starts where the first one ended, with each site's differences carried as variations.

[![Two engineers in hard hats and hi-vis vests at insulated process piping in a new plant, one turning a valve handwheel while the other holds a tablet.](https://www.athion.io/hubfs/athion-site/g-case-blankpage.jpg)For the plant that's sold out before startup.](https://www.athion.io/use-case?case=soldout&hsLang=en)

Athion tests your sequences before anything is configured and starts each new unit from classes you have already proven, so startup holds to your date.

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## Brownfield modernization

Start every modernization from one source of truth: the drawings you have and the data your plant already produces.

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[![A yellow hard hat on a table covered in marked-up P&IDs, with red revision clouds, while two engineers work through them.](https://www.athion.io/hubfs/athion-site/g-case-reconcile.jpg)For when the drawings and documents don't match.](https://www.athion.io/use-case?case=reconcile&hsLang=en)

Athion automatically reconciles your P&IDs, narratives, I/O lists, cause-and-effect matrices and more.

[![An aerial view of a large process plant lit up at night, built out over many years.](https://www.athion.io/hubfs/athion-site/g-case-legacy.jpg)For the plant that modernizes one project at a time.](https://www.athion.io/use-case?case=legacy&hsLang=en)

Athion reads your legacy P&IDs, from CAD files and PDFs to scans and photos, into one model your engineers can search, check and build on.

[![An open control cabinet full of terminal blocks, breakers and wiring.](https://www.athion.io/hubfs/athion-site/g-case-migration.jpg)For the migration where the control system is the only spec.](https://www.athion.io/use-case?case=migration&hsLang=en)

Athion rebuilds the design from your drawings, your procedures and how the plant actually runs, so the migration starts from a spec your engineers have confirmed.

[![Two engineers in hi-vis vests at a laptop in a warehouse, one of them on the phone.](https://www.athion.io/hubfs/athion-site/g-case-spec.jpg)For the engineer running the plant while trying to run the project.](https://www.athion.io/use-case?case=spec&hsLang=en)

Athion drafts your requirement specification from the drawings and documents you already have, so you start by reviewing.

[![An engineer in a hard hat holding a tablet in a large industrial hall, with equipment lit up behind.](https://www.athion.io/hubfs/athion-site/photo-plant-floor.jpg)For the ballroom of skids that keeps changing.](https://www.athion.io/use-case?case=skids&hsLang=en)

Athion brings the drawings and documents for every vendor's skid in the room into one record, so a new product or recipe shows what it touches.

[![Two engineers in hard hats at a computer in an electrical room, one pointing a pen at the screen.](https://www.athion.io/hubfs/athion-site/g-case-retyped.jpg)For the MOC compliance will want to see.](https://www.athion.io/use-case?case=moc&hsLang=en)

Athion compares what your control system runs now with what the management of change approved, and shows the P&ID, the procedure and the settings side by side.

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## Production and optimization

Run every day like your best day, and find out why the plant did what it did.

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[![Three people in hard hats and hi-vis vests on site, one holding a drawing and another pointing out across the yard.](https://www.athion.io/hubfs/athion-site/g-case-trip.jpg)For troubleshooting that issue that won't go away.](https://www.athion.io/use-case?case=trip&hsLang=en)

Athion Historian captures every variable in your plant, so you can see what happened and work out why.

[![A technician in a hard hat working by hand on equipment in the field.](https://www.athion.io/hubfs/athion-site/g-case-manual.jpg)For the unit that runs in manual more than in auto.](https://www.athion.io/use-case?case=manual&hsLang=en)

Athion turns what your operators do on their best runs into a requirement specification, so the automation starts from what already works.

[![An engineer in a hard hat and hi-vis vest checking a control panel against a tablet.](https://www.athion.io/hubfs/athion-site/g-case-asbuilts.jpg)For when the as-builts don't match production.](https://www.athion.io/use-case?case=asbuilts&hsLang=en)

Athion reads your control system backups and shows what changed in the field, so the drawings, the documents and the operators can catch up.

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## Digital transformation and AI

AI on your plant's terms: choose, mix and change models without losing your work.

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[![A rubber stamp reading Top Secret, Classified, beside the red mark it has just pressed into brown paper.](https://www.athion.io/hubfs/athion-site/photo-ai-secret.jpg)For companies whose trade secrets and confidential information can't leave the site.](https://www.athion.io/use-case?case=aiprivate&hsLang=en)

Plant data is often a trade secret, or at the very least confidential, and some of it can't leave the site. Athion AI can run on a wholly private model, so you get the insight without sending your data to a major model provider.

[![Two huge blocks of weathered stone with a small stone wedged between them, against a bright pink background.](https://www.athion.io/hubfs/athion-site/photo-ai-rocks.jpg)For companies that have experienced pilot purgatory because one solution didn't fit every plant.](https://www.athion.io/use-case?case=aipilot&hsLang=en)

A pilot that worked at one plant stalls at the next because one solution didn't fit every plant. Athion lets each plant use the model that fits it, on the same record, so a pilot doesn't have to start over at every site.

[![Streams of white binary digits curving into a bright blue tunnel of light.](https://www.athion.io/hubfs/athion-site/photo-ai-data.jpg)For companies still exploring the right AI solution who need the flexibility to innovate.](https://www.athion.io/use-case?case=aiexplore&hsLang=en)

You haven't settled on an AI solution, and you shouldn't have to yet. Try a major model, one you develop yourself or a wholly private one, and change your mind later with no migration.

[![Four glowing computer chips marked AI, one large and three smaller, on a dark blue circuit background.](https://www.athion.io/hubfs/athion-site/photo-ai-models.jpg)For teams that use different models for different purposes.](https://www.athion.io/use-case?case=aimodels&hsLang=en)

Different jobs call for different models: one for drawings, another for troubleshooting, a private one for what is confidential. Your teams use the right model for each purpose, all working from the same plant record.

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## What are your toughest problems worth?

Put a number on what they cost your plant each year, using your own figures.

[See what you could save](https://www.athion.io/roi?hsLang=en)

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