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If you have heard terms like Agile, Scrum, Sprint, Waterfall, Product Backlog, and Sprint Planning, they may sound like completely different concepts.
They are actually connected.
Let’s start from the beginning and build the picture step by step.
What Is a Project?
A project is temporary work undertaken to achieve a specific goal.
Examples include:
- Building a website
- Developing a mobile application
- Launching a new product
- Implementing a CRM system
- Opening a new branch
- Organizing a conference
A project normally has a goal, beginning, end, budget, resources, and expected result.
This makes a project different from ongoing operations.
For example, building a customer-support system can be a project. Providing customer support every day is an ongoing business operation.
What Is Project Management?
Project management is the process of organizing the work, people, time, budget, and resources needed to successfully complete a project.
In simple terms, project management tries to answer:
What are we trying to achieve?
What needs to be done?
Who will do it?
When should it be completed?
How much will it cost?
How will we know that the project succeeded?
Most projects involve balancing several important factors:
Scope ↔ Time ↔ Cost ↔ Quality
Changing one can affect the others.
If a client suddenly asks for ten additional features, for example, the project may require more time, more money, more resources, or some combination of them.
The Basic Project Lifecycle
Most projects go through several general stages:
Initiation → Planning → Execution → Monitoring & Control → Closing
Initiation
We identify the problem, opportunity, and goal.
Why are we doing this project?
Planning
We determine what needs to happen.
This can include the scope, schedule, budget, responsibilities, resources, milestones, and risks.
Execution
The team performs the actual work.
Designers design. Developers develop. Marketers launch campaigns. Engineers build.
Monitoring and Control
We continuously compare reality with our expectations.
Are we late?
Are we exceeding the budget?
Has the scope changed?
Are we achieving the required quality?
Closing
The project is completed, approved, delivered, documented, and reviewed.
But there is an important question:
How should we actually plan and execute all this work?
This brings us to Waterfall and Agile.
Waterfall vs. Agile
Waterfall and Agile represent very different approaches to delivering projects.
Waterfall: Plan First, Then Execute
In a traditional Waterfall-style project, work generally moves through sequential stages.
For a software project, this might look like:
Requirements → Design → Development → Testing → Deployment
You first determine what needs to be built.
Then you design it.
Then you develop it.
Then you test it.
Finally, you deliver it.
The general philosophy is:
Plan → Execute → Deliver
Waterfall can work very well when requirements are clear, predictable, and unlikely to change significantly.
The difficulty appears when there is uncertainty.
Imagine spending eight months developing a product only to discover after launch that customers wanted something different.
This is one of the problems Agile approaches try to address.
What Is Agile?
Agile is a way of thinking about how we create and deliver value in environments where requirements and circumstances can change.
Instead of attempting to predict everything at the beginning, Agile encourages teams to work incrementally.
The cycle becomes:
Plan → Build → Test → Get Feedback → Learn → Adapt → Repeat
- Instead of waiting six months to show the customer the entire product, we might deliver a useful part after a few weeks.
- We collect feedback.
- Then we decide what should happen next.
- This gives us an important distinction:
Waterfall
Plan extensively → Build → Deliver
Agile
Plan → Build something useful → Learn → Adapt → Repeat
Agile does not mean there is no planning.
It means the plan can evolve as we gain better information.
Agile Is Not Scrum
This is one of the most common sources of confusion.
Agile and Scrum are not synonyms.
Agile is the broader mindset and set of principles.
Scrum is a framework that teams can use to work in an Agile way.
Think of it like this:
Agile
↓
Scrum
↓
Sprints
So what exactly is Scrum?
What Is Scrum?
Scrum provides teams with a structured way to work on complex products while continuously learning and adapting.
Instead of attempting to complete the entire product at once, the team works through short cycles.
These cycles are called Sprints.
A Sprint lasts one month or less, with many teams choosing one or two weeks.
For example, instead of saying:
“We will build the entire CRM over the next eight months.”
we might say:
“During this Sprint, we will focus on creating the core lead-management functionality.”
At the end of the Sprint, the team should have something useful that contributes to a working product.
Then the team reviews the result, learns from it, and continues.
The Scrum Team
Scrum defines three main accountabilities.
Product Owner
The Product Owner focuses on maximizing the value of the product and managing the Product Backlog effectively.
A major responsibility is determining priorities.
For example:
Should we build advanced reports first?
Or should we build WhatsApp integration because customers urgently need it?
The Product Owner helps ensure the team focuses on the most valuable work.
Scrum Master
The Scrum Master helps the team understand and use Scrum effectively.
This is not simply another name for “project manager.”
The Scrum Master helps improve the team’s effectiveness, facilitates Scrum practices, and helps address obstacles affecting the team’s work.
Developers
The Developers are the people responsible for creating a usable product Increment during each Sprint.
Depending on the product, this can involve different professional skills.
Product Backlog
The Product Backlog is an ordered, evolving list of what is needed to improve the product.
For a CRM, it might contain:
- Lead management
- Sales pipelines
- Automatic lead assignment
- WhatsApp integration
- Tasks
- Reports
- AI lead qualification
The order can change.
Perhaps reports were originally considered more important than WhatsApp integration.
Then customers start repeatedly requesting WhatsApp.
The Product Owner can change the priorities.
This demonstrates one of the central ideas behind Agile:
We adapt when we learn something important.
Sprint Planning
Before starting the work of a Sprint, the Scrum Team conducts Sprint Planning.
The team determines why the Sprint is valuable, what can be accomplished, and how the selected work will be approached.
A Sprint Goal might be:
“Enable sales teams to capture and organize incoming leads.”
The Developers then create a plan for accomplishing the selected work.
This becomes the Sprint Backlog.
A simple distinction is:
Product Backlog = what the product needs
Sprint Backlog = the Developers’ plan for the current Sprint
Daily Scrum
During the Sprint, Developers have a short Daily Scrum.
It is a 15-minute event used to inspect progress toward the Sprint Goal and adapt the plan when necessary.
It should not simply become a daily reporting session for management.
Its purpose is to help the Developers coordinate and keep moving toward the Sprint Goal.
The Increment
At the end of the Sprint, completed work contributes to an Increment.
In simple terms, the product should have moved forward in a usable way.
For example, after a CRM Sprint, users might now be able to:
Create → View → Edit → Assign leads
The team has produced something real rather than simply reporting that the product is “60% complete.”
Sprint Review vs. Sprint Retrospective
These two are easy to confuse.
Sprint Review
The team and stakeholders inspect the outcome of the Sprint and discuss what should happen next.
Think:
How is the PRODUCT progressing?
Feedback from the Sprint Review can influence future priorities and the Product Backlog.
Sprint Retrospective
The Scrum Team examines how it worked during the Sprint.
Think:
How can the TEAM work better?
For example:
- Were requirements clear enough?
- Did testing happen too late?
- Was communication effective?
- What should we improve during the next Sprint?
An easy way to remember the difference:
Sprint Review → Improve the product and future direction
Sprint Retrospective → Improve the way the team works
Putting Everything Together
We can now see the complete relationship:
PROJECT MANAGEMENT
Managing goals, people, scope, time, cost, resources, risk, and quality.
↓
WATERFALL
A more sequential and predictive approach.
Plan → Execute → Deliver
or
AGILE
An adaptive approach focused on frequent value, feedback, learning, and change.
Plan → Build → Feedback → Adapt → Repeat
↓
SCRUM
A framework that can help teams work according to Agile principles.
↓
SPRINT
A short, fixed-length cycle in which the Scrum Team works toward a Sprint Goal.
A simplified Scrum flow looks like:
Product Backlog
↓
Sprint Planning
↓
Sprint
↓
Daily Scrum
↓
Increment
↓
Sprint Review
↓
Sprint Retrospective
↓
Next Sprint
The Simplest Way to Remember It
If you remember only four things from this article, remember these:
Project Management = organizing a project to achieve a goal.
Waterfall = plan extensively, then execute through sequential stages.
Agile = build, learn, adapt, and continuously deliver value.
Scrum = a framework for organizing adaptive work using short cycles called Sprints.
Once these relationships are clear, terms such as Product Backlog, Sprint Planning, Daily Scrum, Sprint Review, and Sprint Retrospective become much easier to understand.
