---
title: App Model | Qventis One
description: The App Model learns your application's screens, flows, APIs, data and rules once, and every Qventis One engine reuses it. Change it once, fix it everywhere.
---

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- Platform
  
  [**Qventis One**The autonomous quality platform. Learn your app once, assure every kind of quality, decide in one view.](https://qventis.ai/one?hsLang=en)
  
  [**Qventis Engine**Plain English in, zero AI tokens at run time](https://qventis.ai/engine?hsLang=en) [**App Model**Learn your app once, reuse it everywhere](https://qventis.ai/one/app-model?hsLang=en) [**Quality View**One pane of glass for every release](https://qventis.ai/one/quality-view?hsLang=en) [**Studio**Anyone can automate in plain English](https://qventis.ai/platform/studio?hsLang=en)
  
  [**Trust & security**AI on your terms, people approve](https://qventis.ai/platform/trust?hsLang=en) [**Agent gateway**Coding agents run tests under policy](https://qventis.ai/platform/agent-gateway?hsLang=en) [**Integrations**Fits your CI, ALM and chat tools](https://qventis.ai/platform/integrations?hsLang=en) [**Editions**Start small, grow into One](https://qventis.ai/editions?hsLang=en)
  
  How it works[1Learn your app](https://qventis.ai/one/app-model?hsLang=en)[2Write plain English](https://qventis.ai/platform/studio?hsLang=en)[3Run every engine](https://qventis.ai/engine?hsLang=en)[4Decide in one view](https://qventis.ai/one/quality-view?hsLang=en)
- Engines
  
  [**Every kind of quality, one flow**Eight engines share one model of your app and report into one view.](https://qventis.ai/one?hsLang=en)
  
  [**Functional**Web, API, desktop and mobile](https://qventis.ai/engines/functional?hsLang=en) [**Performance**Speed budgets on real journeys](https://qventis.ai/engines/performance?hsLang=en) [**Security**Roles, sessions and exposure](https://qventis.ai/engines/security?hsLang=en) [**Service virtualization**Test before every API is ready](https://qventis.ai/engines/virtualization?hsLang=en)
  
  [**Test data**Safe, ready data for every run](https://qventis.ai/engines/test-data?hsLang=en) [**Data & ETL**Numbers that match end to end](https://qventis.ai/engines/data-etl?hsLang=en) [**Visual**Catch what users would see](https://qventis.ai/engines/visual?hsLang=en) [**Accessibility**WCAG checks with an audit trail](https://qventis.ai/engines/accessibility?hsLang=en)
  
  Packaged-app packs[Oracle](https://qventis.ai/engines/packaged-apps?hsLang=en)[SAP](https://qventis.ai/engines/packaged-apps?hsLang=en)[Salesforce](https://qventis.ai/engines/packaged-apps?hsLang=en)[Workday](https://qventis.ai/engines/packaged-apps?hsLang=en)[See all packs](https://qventis.ai/engines/packaged-apps?hsLang=en)
- Solutions
  
  [**Release in confidence**Certify every vendor upgrade and configuration change before your business feels it.](https://qventis.ai/platforms?hsLang=en)
  
  Enterprise platforms
  
  [Salesforce](https://qventis.ai/platforms/salesforce?hsLang=en)[SAP](https://qventis.ai/platforms/sap?hsLang=en)[Oracle](https://qventis.ai/platforms/oracle?hsLang=en)[Workday](https://qventis.ai/platforms/workday?hsLang=en)[ServiceNow](https://qventis.ai/platforms/servicenow?hsLang=en)[Dynamics 365](https://qventis.ai/platforms/dynamics-365?hsLang=en)[nCino](https://qventis.ai/platforms/ncino?hsLang=en)[Coupa](https://qventis.ai/platforms/coupa?hsLang=en)
  
  [**Industries**Banking, insurance, healthcare and more](https://qventis.ai/industries?hsLang=en)
  
  By need
  
  [**Release testing**Run only what a change affects](https://qventis.ai/solutions/release-testing?hsLang=en) [**Legacy desktop**Apps automation never reached](https://qventis.ai/solutions/legacy-desktop?hsLang=en) [**Quality CoE**One standard across the business](https://qventis.ai/solutions/quality-coe?hsLang=en)
  
  Certify an upgrade[1Release notes in](https://qventis.ai/platforms?hsLang=en)[2Impact on your app](https://qventis.ai/one/app-model?hsLang=en)[3Run in sandbox](https://qventis.ai/engine?hsLang=en)[4Sign off](https://qventis.ai/one/quality-view?hsLang=en)
- [Customers](https://qventis.ai/customers?hsLang=en)
- Company
  
  [**About qventis**Why we built one platform](https://qventis.ai/about?hsLang=en) [**Blog**Field notes on quality, AI and agents](https://qventis.ai/blog?hsLang=en) [**Trust center**How we protect your data](https://qventis.ai/platform/trust?hsLang=en) [**Contact**Talk to a person, not a bot](https://qventis.ai/contact?hsLang=en)
  
  Prefer email?[contact@qventis.ai](mailto:contact@qventis.ai)

[Book a demo](https://qventis.ai/contact#demo)

[Qventis One](https://qventis.ai/one?hsLang=en)/App Model

# Fix a changed screen once, not in every suite

The App Model learns your screens, flows, APIs, data and rules once. Every engine reads it, so one approved update fixes every affected test.

[Book a demo](https://qventis.ai/contact#demo)[See Qventis One](https://qventis.ai/one?hsLang=en)

- One model, eight engines
- Fix once, apply everywhere
- Readable targets, no XPath

**App Model: Order management**Shared by every engine

- screenOrder entry
- controlthe 'Save' button
- flowCreate order, approve large orders
- apiPOST /orders
- datadw.fact\_orders on order\_id
- roleSales rep, Approver
- ruleOrders over 10,000 need approval

## Why one model matters

### Fix once

A renamed button or moved field is updated in one place and flows to every test, in every engine.

### See what a change touches

Tests point at model elements, so the impact of a release is a question the model answers.

### Readable by anyone

Targets are labels like the 'Save' button. Never selectors or XPath.

### Context for coding agents

Agents read a governed model instead of re-reading pages on every run.

## How it works

How it learnsFrom what you already have

Shared by every engineOne model, eight engines

Changes you approveUpdates with evidence

### How it learns

The model grows from the recordings, specs, schemas and cases your teams already have.

[See Studio](https://qventis.ai/platform/studio?hsLang=en)

- Record a journey on web or desktop; every control joins the model
- Import OpenAPI, Postman or HAR files for endpoints and contracts
- Connect a database or warehouse for entities, keys and lineage
- Import manual cases and requirements from Jira, Azure DevOps, TestRail or Excel

### Shared by every engine

Each engine reads the part of the model it needs, so a fix in one place reaches all eight.

[See how Qventis One fits together](https://qventis.ai/one?hsLang=en)

| [Functional](https://qventis.ai/engines/functional?hsLang=en) | Screens, controls and flows |
| --- | --- |
| [Performance](https://qventis.ai/engines/performance?hsLang=en) | Journeys replayed as load |
| [Security](https://qventis.ai/engines/security?hsLang=en) | Roles, permissions and endpoints |
| [Virtualization](https://qventis.ai/engines/virtualization?hsLang=en) | API contracts |
| [Test data](https://qventis.ai/engines/test-data?hsLang=en) | Entities and keys |
| [Data & ETL](https://qventis.ai/engines/data-etl?hsLang=en) | Tables and lineage |
| [Visual](https://qventis.ai/engines/visual?hsLang=en) | Screens and documents |
| [Accessibility](https://qventis.ai/engines/accessibility?hsLang=en) | Screens and components |

### Changes you approve

When your app changes, the model proposes an update with before and after. A person approves it once for every engine.

[See Trust & security](https://qventis.ai/platform/trust?hsLang=en)

**Proposed model update**Waiting for approval

The 'Save' button on Order entry moved into a toolbar.

Before  
footer \> the 'Save' button

After  
toolbar \> the 'Save' button

Every affected test, journey and check across engines is listed for review.

Approve updateOnly a person can approve

## See your hardest app modeled live

Bring the application nobody has managed to automate.

[Book a demo](https://qventis.ai/contact#demo)

![qventis](https://qventis.ai/hubfs/raw_assets/public/qventis-one/images/qventis-logo-reverse.svg)

Qventis One is the autonomous quality platform from qventis.ai. Learn your app once. See every kind of quality in one place. Change nothing without your approval.

[contact@qventis.ai](mailto:contact@qventis.ai)

## Platform

- [Qventis One](https://qventis.ai/one?hsLang=en)
- [Qventis Engine](https://qventis.ai/engine?hsLang=en)
- [App Model](https://qventis.ai/one/app-model?hsLang=en)
- [Quality View](https://qventis.ai/one/quality-view?hsLang=en)
- [Studio](https://qventis.ai/platform/studio?hsLang=en)
- [Agent gateway](https://qventis.ai/platform/agent-gateway?hsLang=en)
- [Editions](https://qventis.ai/editions?hsLang=en)

## Engines

- [Functional](https://qventis.ai/engines/functional?hsLang=en)
- [Performance](https://qventis.ai/engines/performance?hsLang=en)
- [Security](https://qventis.ai/engines/security?hsLang=en)
- [Service virtualization](https://qventis.ai/engines/virtualization?hsLang=en)
- [Test data](https://qventis.ai/engines/test-data?hsLang=en)
- [Data & ETL](https://qventis.ai/engines/data-etl?hsLang=en)
- [Visual](https://qventis.ai/engines/visual?hsLang=en)
- [Accessibility](https://qventis.ai/engines/accessibility?hsLang=en)

## Solutions

- [Enterprise platforms](https://qventis.ai/platforms?hsLang=en)
- [Industries](https://qventis.ai/industries?hsLang=en)
- [Legacy desktop](https://qventis.ai/solutions/legacy-desktop?hsLang=en)
- [Release testing](https://qventis.ai/solutions/release-testing?hsLang=en)
- [Quality CoE](https://qventis.ai/solutions/quality-coe?hsLang=en)

## Company

- [About](https://qventis.ai/about?hsLang=en)
- [Customers](https://qventis.ai/customers?hsLang=en)
- [Blog](https://qventis.ai/blog?hsLang=en)
- [Trust center](https://qventis.ai/platform/trust?hsLang=en)
- [Contact](https://qventis.ai/contact?hsLang=en)
- [Legal](https://qventis.ai/legal?hsLang=en)

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