Project Assumptions: Explained (With Examples)

Written by: Samantha Ferguson
Last updated: 18 December, 2024

Approx reading time:

In this article we’re going to give you a clear overview of project assumptions, including examples, so you can understand what they are and their role in project management.

Everyone makes assumptions all the time – even if you think you don’t! For example, when you order a takeaway, you assume it will come within the quoted timeframe, and you assume it will be hot when it arrives. 

These are safe assumptions to make. And project assumptions are very similar. But to really get to grips with them, let’s take a closer look…

What are project assumptions?

As the name suggests, project assumptions are things you assume will happen throughout the course of your project. They’re classed as assumptions because they can’t be fully confirmed until they’ve happened, but they refer to all of the factors that you expect to happen (in an ideal world). 

Our Insight
Project assumptions help you to create a realistic project plan and manage the expectations of all project stakeholders. 

Why are project assumptions important?

Project assumptions are important for many reasons. For starters, they provide a baseline for what’s expected so you can clearly define the project scope, estimate a deadline, and manage project expectations throughout. 

Project assumptions also help you to estimate costs, allocate resources, assess and manage risks, and make informed decisions to accurately plan and manage your project. 

Expert Tip
Regularly revisit your assumptions throughout the lifecycle of your project and make changes if necessary.

10 examples of project assumptions

1. “The budget will cover this project.”

This assumption means you believe sufficient funds have been allocated to cover the cost of the project. 

2. “The project will be completed on time.”

The assumption here is that the project will be completed in the timeframe agreed upon at the start. 

3. “Key team members will be available for the duration of this project.”

This assumption means that the people assigned to the project will be available to work on the project and communicate with stakeholders throughout the entire duration.

4. “Stakeholders will provide timely feedback.”

This is the assumption that project stakeholders will hold up their side of the bargain and provide feedback on time. This is super important for sticking to your deadline! 

5. “The technology used will be functional and accessible.”

The assumption here is that the tools you’ve selected to use for the project will work as intended, with limited to no downtime. 

6. “No unforeseen event will disrupt the project.”

This means that you assume no unexpected circumstances will cause a delay or cancellation to the project. It typically refers to rare events like natural disasters and pandemics. 

7. “The economic conditions will remain stable throughout the project.”

This is similar to the previous assumption and assumes that economic factors, like inflation or labour costs, won’t fluctuate significantly during the course of the project. 

8. “The project scope or stakeholder requirements will not significantly change.”

This is the assumption that the parameters of the project (that were agreed upon at the start) will not change. It refers to project goals and deliverables, too. 

9. “The work environment will remain safe and conducive to productivity.”

The assumption here is that everyone involved on the project will feel safe to work without risks to their health, safety, and/or mental wellbeing. 

10. “The data used for decision-making will be up-to-date.”

This assumption means that the information used for planning and working on the project will all be current, accurate, and relevant. 

Track project assumptions with Project.co

When tracking your project assumptions, it helps to use a project management tool. Here are some ways you can use Project.co to track project assumptions: 

Tasks 

Our robust Tasks tool allows you to create and assign tasks to different team members. You can also add dates, priorities, files, and even chat directly within a task. 

You could directly add your assumptions to Project.co as tasks, and assign them to the team member who is responsible for that part of the project, e.g. the budget or the timeline. 

List View

This way, your team member can keep track of the assumption and update the rest of the team if anything changes. 

2. Custom Fields

You can also create custom fields on a project level within Project.co. 

These custom fields can be useful for categorising and tracking your project assumptions. You can simply mark the task as an ‘assumption’ so that you don’t get it confused with all of your other project tasks. 

3. Discussions

Our Discussions tool allows for real-time conversations directly within your projects. 

Using Discussions, you can quickly and easily chat to project stakeholders about any changes to project assumptions or potential risks to the project in real time. 

Final thoughts

Whether you put much thought into them or not, we all make assumptions about our projects. And it’s important to do so! 

Project assumptions can help you to manage expectations, plan appropriately, and ensure everyone is on the same page. 

Start tracking your project assumptions today with Project.co

Written by <a href="https://www.project.co/author/samanthaferguson/" target="_self">Samantha Ferguson</a>

Written by Samantha Ferguson

Samantha is Head of Content at Project.co. She has 5+ years' experience in the project management industry and in that time she's written over 100 articles on the subject and conducted studies on employee engagement and how AI is impacting the industry. She also has a lifetime's experience of being obsessed with organisation and productivity - Samantha is that person who plans travel itineraries down to the hour! Her favourite Project.co feature is the AI assistant.

Create your account

Create your account and experience the magic of having all your information and communication in one place. Never miss a deadline, have a happier team and happier customers.