> For the complete documentation index, see [llms.txt](https://www.pranaypourkar.co.in/the-programmers-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.pranaypourkar.co.in/the-programmers-guide/software-testing/testing-fundamentals/software-testing-methodologies/functional-testing/integration-testing/scenario-matrix-template.md).

# Scenario Matrix Template

## About

A **Scenario Matrix Template** for **Integration Testing** is a structured framework used to organize and execute tests that validate **how different modules, services, or components work together**.\
While unit testing verifies individual pieces in isolation, integration testing focuses on **data flow, interaction correctness, and compatibility between interconnected parts** of the system.

This matrix ensures:

* All **interfaces and interaction points** are tested
* Dependencies between modules are validated for both positive and negative cases
* Integration-related defects are caught early before reaching system testing
* Coverage includes both **functional correctness** and **non-functional aspects** such as performance and error handling in integrated environments

Scenarios in integration testing often cover **API contracts, database interaction, external service calls, message queues, file exchanges, and workflow orchestration**.

## Template

<table data-header-hidden data-full-width="true"><thead><tr><th></th><th></th><th width="144.640625"></th><th></th><th></th><th></th><th></th><th></th></tr></thead><tbody><tr><td><strong>Scenario ID</strong></td><td><strong>Scenario Description</strong></td><td><strong>Preconditions</strong></td><td><strong>Test Data / Inputs</strong></td><td><strong>Steps to Execute</strong></td><td><strong>Expected Result</strong></td><td><strong>Priority</strong></td><td><strong>Remarks</strong></td></tr><tr><td>IT-01</td><td>Validate API communication between two modules</td><td>Both modules deployed</td><td>Valid request payload</td><td>Send request from Module A to Module B</td><td>Module B processes request and returns correct response</td><td>High</td><td>Basic integration check</td></tr><tr><td>IT-02</td><td>Handle invalid data between modules</td><td>Both modules deployed</td><td>Invalid or malformed payload</td><td>Send invalid request from Module A to Module B</td><td>Module B returns appropriate error without crashing</td><td>High</td><td>Ensures input validation across boundaries</td></tr><tr><td>IT-03</td><td>Test database integration</td><td>Application connected to test DB</td><td>Valid business transaction</td><td>Perform operation that writes to DB</td><td>Data stored correctly and retrievable</td><td>High</td><td>Verifies DB CRUD operations</td></tr><tr><td>IT-04</td><td>Validate message queue processing</td><td>Queue and consumers configured</td><td>Valid message</td><td>Publish message to queue</td><td>Consumer processes and acknowledges message</td><td>Medium</td><td>Applicable for event-driven systems</td></tr><tr><td>IT-05</td><td>Test third-party API integration</td><td>External API sandbox available</td><td>Valid API credentials</td><td>Call third-party API from application</td><td>Response matches API contract</td><td>High</td><td>Prevents integration breakage</td></tr><tr><td>IT-06</td><td>Error propagation between modules</td><td>Modules integrated</td><td>Trigger failure in downstream module</td><td>Call upstream module</td><td>Upstream module returns controlled error and logs details</td><td>Medium</td><td>Verifies graceful failure handling</td></tr><tr><td>IT-07</td><td>Workflow orchestration check</td><td>Multiple modules deployed</td><td>Valid end-to-end data</td><td>Execute multi-step workflow</td><td>Workflow completes successfully with correct outputs</td><td>High</td><td>Ensures end-to-end correctness</td></tr><tr><td>IT-08</td><td>Test integration performance</td><td>Integrated environment available</td><td>High volume of requests</td><td>Simulate load on API interaction</td><td>Response times remain within SLA</td><td>Medium</td><td>Measures integration efficiency</td></tr><tr><td>IT-09</td><td>Validate configuration compatibility</td><td>Modules configured with different versions</td><td>Compatible configurations</td><td>Deploy modules with given config</td><td>Integration works without version conflicts</td><td>Low</td><td>Detects version mismatch issues</td></tr><tr><td>IT-10</td><td>Verify security in integration</td><td>Modules deployed with authentication</td><td>Authenticated request</td><td>Access integrated feature</td><td>Request is authorized and logged</td><td>Medium</td><td>Ensures secure integration</td></tr></tbody></table>


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