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Understanding Project Milestones and Their Role in Success

Learn about project milestones and how they influence success. See three project method examples and tips to help you identify key milestones.

Motion Blog
at Motion
Aug 24, 2023
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Imagine going somewhere you have never been without a map, uncertain about your progress, and feeling lost. It’s disorienting, isn’t it? Well, projects, whether in your personal life or business, are no different. They require clear milestones to guide you, mark your progress, and ensure success.

In this post, we’ll unravel the concept of project milestones’ importance in personal and professional project plans. We will go over how they differ from goals and deliverables, discover their role in Agile project management, and examine project milestone examples. Milestones are markers for project progress, and opportunities for “wins” along the way.

What are project milestones?

While milestones in life mark important events, they serve as checkpoints of progress in business and projects. They provide clear targets and show headway toward project goals, answering the question, “Are we moving forward?”

Project milestones are planned checkpoints that signify the completion of a major deliverable or stage. They depend on a group of predecessor tasks that get the necessary work done to build a deliverable, a major module of a deliverable, or completion of a phase of the project.

Essentially, they are achieved when the set of work or group of tasks that satisfy all the requirements for the milestone is completed.

For instance, in a website development project, milestones could include completion of key stages like:

  • Milestone 1: The completion of the wireframe design
  • Milestone 2: Finalization of website layout
  • Milestone 3: Implementation of backend functionality
  • Milestone 4: The grand launch of the website itself

However, it's also important to note that milestones can become potential pressure points. If a milestone isn't met as planned, it may indicate issues or delays in the project schedule, which can cause concerns and problems.

Milestone vs. goal

Milestones and goals are distinct yet interconnected concepts that serve the same purposes.

Milestones are specific points or events that mark significant achievements. Goals represent the broader outcomes or objectives that the project aims to achieve. Milestones and goals work hand in hand to guide the project toward its ultimate success.

Milestone vs. deliverable

Milestones and deliverables are key elements for effective execution in project management.

Milestone vs deliverable

‎Milestones are specific markers of progress. On the contrary, deliverables are the tangible outputs or results of completed project activities (actual products, services, or outcomes).

What are project milestones in Agile?

Project milestones in Agile are key points of progress or completion within iterative cycles. The milestones are intricately tied to delivering incremental value to customers throughout a project lifecycle.

For instance, in an Agile software development project, milestones may encompass the following:

  1. Completion of the first sprint
  2. Delivering a set of functional features to customers
  3. Obtaining user acceptance testing and approval for a specific iteration
  4. Integrating a new module into the existing system

Unlike traditional approaches, milestones in Agile depend on the Agile framework used. For example, in Scrum, a milestone could be the delivery of a feature set, or the end of a sprint.

In Kanban, it could be the completion of a delivery in accordance with the delivery planning meeting, or achievement of a project roadmap item. Otherwise a main Kanban objective is continuous delivery of work with incremental delivery of value.

Why are project milestones important?

Picture you are on an exciting trek, scaling the majestic peaks of the Himalayas. As you ascend, reaching each base camp serves as a checkpoint, marking your progress and ensuring you’re on the right path.

Similarly, milestones in project management undeniably guide you and your team to success. This tracking ensures the project stays on course, avoiding delays or deviations.

A person climbing stairs with project milestones labelled on each

‎Think of them as significant markers during a long hike. Just as you’d identify these markers before a hike, you can also identify them when planning ‌a project.

Effective communication with fellow hikers in the wilderness is vital for safe and cohesive trekking. Likewise, good project management requires seamless communication among team members, stakeholders, and clients. Regularly updating everyone on milestones is a great opportunity to do just that.

In the wilderness, the celebration of reaching a challenging peak can boost team morale and motivate teams to continue. Likewise, celebrating project milestones acknowledges your team’s and your business's hard work and progress. It creates a positive atmosphere, inspiring everyone to push forward and tackle the next milestones.

How to identify key milestones in a project

Identifying key milestones does not have to be difficult. You can focus on using one or a few of the tips below.

Thoroughly examine the project's goals and objectives. Understanding the desired outcomes will help you find milestones that mark progress toward the mission.

Engage your project team and stakeholders in the milestone identification process. Their diverse perspectives and expertise will provide valuable insights into the identified milestones. They can also show any you have missed, and it helps align expectations regarding the milestones.

Consider the relationships between tasks, project constraints, and critical deliverables. To do this, analyze task dependencies, assess project constraints, and identify critical deliverables that significantly impact project progress. Look for points in the project where significant tasks are completed, deliverables are achieved, and stages are completed. These are clear indicators of possible milestones.

How to write a milestone?

Writing milestones helps guide everyone involved, so writing them correctly is much more effective than making them vague.

Here are some examples of “vague” milestones:

  • “Website development milestone: Work on website design.”
  • “Product launch milestone: Enhance the user experience.”
  • “Marketing campaign milestone: Increase sales.”
  • “Quality assurance milestone: Improve the testing process.”
  • “Project completion milestone: Finalize project tasks.”

These examples lack specificity as they don’t clearly define what aspect of the project is being completed. The key here is that a milestone doesn’t recognize “doing” something; it recognizes “completing” something.

Here are a few ways to write milestones that guide ‌projects to identify them properly.

Be clear and specific

Use straightforward language to describe the milestone and avoid unnecessary jargon. Clearly outline the expected outcome, including deliverables or tasks linked with the milestone. This clarity ensures that all stakeholders understand the milestone’s significance and purpose.

An example of a Gantt chart with project milestones


  • Testing milestone: Completed wireframes, design mockups, and interactive prototypes for review”
  • Development milestone: Implemented core functionality and with verified unit testing for key features.”
  • Marketing milestone: Launched targeted advertising campaigns on social media platforms with metrics on the initial engagement.”

Set realistic timelines

Next up, let’s take a look at milestones that mention timelines and how to write these. Examples:

  • “The design phase milestone is completed once all the design phase prototypes have been approved.”
  • “The development milestone is achieved when the first production unit is complete.”
  • “The marketing milestone is achieved when we bring in 15,000 organic online customers.”

Top tip:

You can use milestones to create a realistic timeline of all the tasks and work that lead up to its completion. If you start with your targeted milestone date and work backwards, you can assess whether your milestone completion date is reasonable, based on dependencies and accurate timeline estimates.

Or working forward, you can use the design phase milestone as a marker and look at all the work leading up to it to determine when it can be completed.

Assign responsibility to specific team members or roles

When assigning responsibility, clearly indicate who handles the subtasks and lower-level tasks that lead to the milestone’s completion. While overall responsibility for a set of tasks is assigned, the milestone itself has no resources (and no duration).


  • “The UX/UI design team, led by Jane, is responsible for achieving the design phase tasks critical to completing the design complete milestone.”
  • “Sarah and her team handle the tasks that lead up to the completion of the marketing milestone.”


  • Reaching the “product launch milestone,” is dependent on tasks assigned to John for product design and to Emily to create the PR materials.
  • For us to achieve the “development complete milestone” we must complete the development which is done by the developers and coders.

3 Project milestone examples from start to finish

Next, we’ll review three project methodologies, each with its unique project phases, and give you examples of milestones in each.

Traditional example project: construction of a commercial building

Let's take a look at what the milestones might be in a traditional project lifecycle. In this example, we'll examine a construction project for a tower and identify some possible milestones.

Here's how they can write them during each project phase:

Initiation phase

  • Milestone 1: Completion of a comprehensive feasibility study, including contingency plans.
  • Milestone 2: Obtaining the necessary permits and regulatory approvals for construction.
  • Milestone 3: Finalization of project budget with funding sources secured.

Planning phase

  • Milestone 4: Approval of detailed architectural and engineering plans with the client.
  • Milestone 5: Completion of resource planning for equipment, materials, and project teams.

Execution phase

  • Milestone 6: Completing the foundation construction (also a critical task).
  • Milestone 7: Successful completion of the structural framework.
  • Milestone 8: Completion of plumbing and electrical installations.
  • Milestone 9: Completing the structure, including walls, roof, and windows.

Closing phase

  • Milestone 10: Final inspection and obtaining the occupancy permit.
  • Milestone 11: Hand over the completed building to the client on 10 August 2023.

Waterfall example: development of a software application

Next, let’s use a software development project which uses the waterfall method lifecycle.

Waterfall method phases ending in milestones

‎Requirements gathering phase

  • Milestone 1: Completion of stakeholder requirements survey.
  • Milestone 2: Completion of client requirements acceptance review.

Design phase

  • Milestone 3: Completion of high level architecture.
  • Milestone 4: Detailed design review.complete.

Implementation phase

  • Milestone 5: Coding and unit test complete for Module A.
  • Milestone 6: Coding and unit test complete for Module B.

Testing phase

  • Milestone 7: Integration test complete.
  • Milestone 8: User acceptance test complete.

Deployment phase

  • Milestone 9: User training complete.
  • Milestone 10: Launch complete.

Agile example: development of a mobile app

Let's delve into the various phases of the development process in an Agile Scrum sprint lifecycle.

Sprint 1

  • Milestone 1: Completion of sprint planning.
  • Milestone 2: Completion of sprint backlog.
  • Milestone 3: Completion of sprint review with customer.
  • Milestone 4: Completion of sprint retrospective.

The Scrum team doesn’t necessarily think of these as milestones, but nevertheless it achieves them as part of the sprint lifecycle.

Completion of the product increment and acceptance by the Product Owner are perhaps the most important and recognized sprint milestones. They provide a unit of measurable value.

Efficient milestone management with Motion

Motion, an AI-powered project management app, is changing how project managers handle projects.

Motion Automatically Plans Your Schedule

‎The app’s main features are tasks, calendars, and a booking system, which can help with milestones. It also can track milestone tasks and will update you and the team as they (and other kinds of tasks) are ‌achieved, or delayed.

Features for milestone management

Motion’s intelligent planning system allocates tasks, meetings and other activities based on everyone’s available working hours. It’ll help you hit project milestones on target, since it delivers the tasks to be completed to achieve it.

Motion will schedule task work for you and your team based on task priorities and deadlines. You and your team won’t waste time figuring out what to do next. And it allocates time for tasks and other activities in one integrated calendar.

Motion also has visual tools that help to see project timeline items at a glance, such as Kanban boards and project timeline view. These views also help give quick insights into task progress on the way to the milestone and have a drag-and-drop function to adjust critical tasks easily.

Project milestones depend on the completion of a set of other tasks that together deliver a valuable piece of the project. Motion allows you to establish task dependencies to make sure that tasks progress in a logical sequence. Using this, you can avoid possible delays or bottlenecks and confidently hit milestone targets.

You can centralize your milestone tracking by integrating Motion with your existing calendar. Its integrations eliminate the hassle of using multiple tools (no more app hopping). Motion is an integrated intelligent calendar and project manager all-in-one tool.

Embrace the future of milestone tracking & management with Motion.

Sign up for your 7-day free trial today.

Motion Blog
Written by Motion Blog