In this blog post, we delve into what an RTM is, how to create one and how it helps run projects successfully.
What is a Traceability Matrix (TM)?
A requirements traceability matrix (RTM) helps teams manage project scope and verify coverage by linking requirements to deliverables, test cases, design specifications, and other relevant artifacts. By creating and maintaining an RTM, teams can identify gaps, assess the impact of changes, and record the status of each requirement. A traceability matrix is a table that shows relationships between two or more sets of items. It can be used for purposes such as:
Verifying that the requirements are met by the design, development and testing activities.
Mapping the dependencies and impacts of changes in one set of items on another.
Analyzing the coverage and completeness of the items.
Tracking the status and progress of the items.
A traceability matrix can have different levels of granularity and complexity depending on the scope and nature of the project. For example, a high-level traceability matrix can show the link between the business objectives and the project deliverables, while a low-level traceability matrix can show the link between the test cases and the code modules.
What is a Requirements Traceability Matrix (RTM)?
A requirements traceability matrix (RTM) is a specific type of traceability matrix that focuses on the requirements of a project. It shows how each requirement is derived from a source (such as a stakeholder need, a business goal, or a regulatory standard), how it is allocated to one or more components or subsystems, how it is verified by one or more test cases or methods, and how it is validated by one or more acceptance criteria or measures.
An RTM can have different formats and structures depending on the type and level of requirements. For example, a hierarchical RTM can show the parent-child relationship between different levels of requirements (such as functional, non-functional, system, subsystem, etc.), while a flat RTM can show the relationship between each requirement and its corresponding artifacts in a single table.
RTMs involve multiple roles and stakeholders in a project, such as:
Project manager: Responsible for initiating, planning, executing, monitoring and controlling the project.
Business analyst: Responsible for eliciting, analyzing, documenting and managing the requirements.
System engineer: Responsible for designing, developing, integrating and testing the system or product.
Quality assurance engineer: Responsible for verifying and validating the quality of the system or product.
Customer: Provides feedback and, where the project’s governance process requires it, approves requirements or deliverables.
Requirements Traceability Matrix Template
7 Steps to Create a Requirements Traceability Matrix
The process of creating an RTM varies depending on the project methodology and tools. However, the following steps provide a practical starting point:
Step 1 - Define the Scope and Objectives of the Project
Identify the sources of requirements, such as stakeholders, documents, and standards, and prioritize them according to their importance and urgency. Record the owner and relevant stakeholders for each requirement so reviews and downstream delivery work have clear accountability. You can use a project scope template for this purpose.
Step 2 - Elicit the Requirements
Gather project requirements from the sources using various techniques (such as interviews, surveys, workshops, observation, etc.). Document them in a clear, concise and consistent manner using a standard format (such as user stories, use cases, etc.).
Step 3 - Analyze the Requirements
Make sure all requirements pertaining to your project are complete, correct, feasible, testable and traceable. Resolve any conflicts or ambiguities among them. Categorize them into different types (such as functional, non-functional, system, subsystem, etc.) and levels (such as high-level, low-level, etc.).
Step 4 - Allocate Requirements
Allocate each requirement to one or more components or subsystems that will implement it. Define the interfaces and interactions among them, and document them in a design specification using an appropriate notation, such as UML or SysML.
Step 5 - Verify and Validate Requirements
Verify that each requirement is met by one or more design elements using various methods (such as inspection, review, walkthrough, etc.). Document them in a verification plan using matrices (such as V&V matrix, V-model, etc.).
Validate requirements using acceptance criteria or measures (such as testing, demonstration, simulation, etc.). Document them in a validation plan using matrices (such as test plan, test case, test report, etc.).
Step 6 - Create a Requirement Traceability Matrix
The RTM should link each requirement to its source, allocation, verification, and validation artifacts. In Creately’s visual workspace for process documentation, teams can build the matrix visually, add links, notes, files, owners, and status details, and discuss entries with contextual comments. These capabilities keep supporting context connected, while the team remains responsible for defining and validating the traceability relationships.
Step 7 - Review and Audit the RTM
Conduct periodic reviews and audits of the RTM to check that it is accurate, consistent, and complete. Stakeholders can comment on gaps or disputed links, while the requirement owner incorporates approved updates. Teams can pair that review workflow with Creately’s process mapping software when they need a shared view of how requirements, approvals, and downstream delivery steps connect. Use agreed metrics, such as traceability coverage and completeness, to assess the RTM, and retain version history so reviewers can understand how it changed.
Why is a Requirements Traceability Matrix important?
A RTM is important because it helps you:
Manage project scope by recording whether requirements have been captured, allocated, verified, and validated.
Support quality management by recording the status of each requirement and its corresponding artifacts.
Reduce the risks of the project by allowing you to identify and analyze the dependencies and impacts of changes in one set of items on another.
Improve the communication and collaboration among the project team and stakeholders by providing a common and consistent view of the requirements and their traceability.
How an RTM is Connected to the Project Life Cycle
An RTM helps you define the scope and objectives of the project, prioritize the requirements, and allocate them to the components or subsystems during the planning phase of the project.
It supports the execution phase of the project by helping you design, develop, integrate and test the system or product that meets the requirements.
You can use an RTM to verify and validate that each requirement is fulfilled by the system or product, track and report the status and progress of each requirement and its corresponding artifacts, and manage any changes or issues that arise in the project.
Ultimately, an RTM helps deliver and deploy a product that satisfies the customer, document and archive the RTM and other artifacts, and conduct a lessons learned session to identify and share best practices and improvement opportunities.
Challenges in Using a Requirements Traceability Matrix
It can be time-consuming to create and maintain an RTM, especially for large and complex projects with many requirements and artifacts.
It can be difficult to confirm that every requirement is traced to its sources, allocations, verification evidence, and validation evidence when those items change.
It can be challenging to track relationships among different sets of items in an RTM, especially when the project uses multiple levels of detail.
Teams may need to reconcile items stored in different formats, structures, systems, and standards.
How to Create a Requirements Traceability Matrix with Creately
Create an RTM from a template or from scratch, then customize its format, structure, and visual conventions to match the project’s standards.
Identify the sources of requirements, such as stakeholders, documents, or systems, and list them in the first column of the matrix.
Identify the types of requirements, such as functional, non-functional, or business, and list them in the first row of the matrix.
Assign a unique identifier and a description, and enter them in the corresponding cells for each requirement.
For each requirement, identify the deliverables, test cases, and other artifacts intended to satisfy it, and enter their identifiers or names in the corresponding cells. Use the notes panel, files, and links to keep supporting evidence connected to the relevant entry.
Use colors, symbols, or structured fields to indicate the status or priority of requirements and related artifacts. Agree on these visual conventions with the team so the matrix remains easy to interpret.
Treat the matrix as living project documentation. Assign an owner for maintaining it, invite stakeholders to review changes through comments, and update affected links after requirements, designs, or tests change. Creately’s version history provides context for those reviews, but it does not automatically validate requirement coverage or synchronize external systems.
Wrapping Up
A requirements traceability matrix (RTM) is a valuable tool for connecting business needs and project requirements to deliverables, test cases, and validation evidence. When teams maintain those relationships carefully, an RTM can expose missing coverage, clarify the impact of changes, and reduce avoidable rework.
An RTM should be treated as living documentation rather than a one-time table. Its owner needs to update the matrix as requirements and linked artifacts change, while stakeholders review disputed or incomplete relationships. Following the steps above helps teams keep traceability visible throughout the project without treating the matrix as a substitute for requirements, testing, or project-management systems.
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