Say it like this
- We need to define the use cases before we start coding.
- What are the main use cases for this API?
- This feature covers multiple use cases in one solution.
Use it at work
Product
- What's the main use case for this feature?
- The main use case is exporting reports.
Pushing back
- I don't see a real use case for this.
- Let's focus on the top three use cases.
With customers
- What's your use case?
- Can you walk me through your use case?
Don't say this
Use case is a noun, not a verb. You cannot 'use case' something. You can test, define, or document use cases.
Don't mix it up
| Term | What it is | Who writes or uses it | When |
|---|---|---|---|
| use case | How someone uses a product | Product | Planning |
| user story | Small feature from the user's view | Product owner | Tickets |
| requirement | What the product must do | Product | Specs |
Practice
Try it
4 quick exercises
1. We should _______ all the _______ before we start writing code.
2. Which sentence uses 'use case' incorrectly?
3. How would you naturally say this in a meeting?
4. Rewrite this in tech English using 'use case': 'We need to think about all the different ways people will use this feature before we build it.'
Say it out loud
Phrase 1 of 3
"We need to define the use cases before we start coding."
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More about use case
Real examples(3)
- in a standup
"We finished mapping out the use cases for the new dashboard yesterday, and now we can start sprint planning."
- in a design meeting
"The primary use case is a manager generating monthly reports without writing SQL queries."
- in a code review
"This implementation handles the happy path, but we should also consider the edge case use case where the network is offline."
More mistakes(2)
Handle with care. Do not confuse with the verb phrase 'use a case' (like a briefcase). Use case is a noun describing a specific application or scenario.
- ✕The use case is too complicated, let me simplify the use case.✓The use case is too complicated; let me simplify the workflow it describes.
Avoid redundancy. A use case already implies a scenario or workflow, so you need not repeat the term unnecessarily.
- ✕A use case is when we have a problem.✓A use case describes a scenario where a user achieves a specific goal using the system.
A use case is not simply a problem—it is a complete interaction scenario with actors, goals, and steps.
Other forms(3)
- use case noun (singular)
"The login use case requires email and password verification."
- use cases noun (plural)
"We identified five critical use cases during requirements gathering."
- use case diagram noun (in compound)
"The use case diagram shows all interactions between users and the system."
Often used with(5)
- define use cases · To identify and describe specific scenarios. Example: 'We need to define use cases before development begins.'
- identify use cases · To discover what scenarios the system needs to support. Example: 'Our team identified three main use cases.'
- primary use case · The main or most important scenario the system must handle. Example: 'The primary use case is mobile payment processing.'
- edge case use case · An unusual or extreme scenario. Example: 'We also need to consider edge case use cases like network failures.'
- use case diagram · A visual representation of use cases in UML. Example: 'We drew a use case diagram to map all user interactions.'
Similar words(3)
- scenario · More general; a use case is a specific type of scenario with defined actors and goals.
- user story · Similar in Agile contexts, but user stories are written from the user perspective. Use cases are more technical and detailed.
- requirement · Broader term. A use case is one way to express a requirement through concrete scenarios.
Questions(5)
- What does use case mean in software engineering?
- A use case is a detailed description of a specific way a user or system will interact with your product to achieve a goal. It describes who the user is (the actor), what they want to do, why they want to do it, and the steps required to complete the task. Use cases help teams understand requirements before coding.
- How do you write a use case?
- A use case typically includes: (1) a title describing the goal, (2) the actor (user or system), (3) preconditions (what must be true before), (4) main flow (the happy path steps), (5) alternative flows (variations), and (6) postconditions (what is true after). For example, a login use case would describe how a user enters credentials and gains access to the system.
- Is use case formal or informal?
- Use case is neutral in formality. It is used in formal documentation, requirements specifications, and design meetings, but it is also common in casual team conversations and standups. It is a standard industry term, not slang.
- What is the difference between a use case and a user story?
- A user story is an Agile tool written from the user perspective in simple language: 'As a user, I want to do X so that Y.' A use case is more formal and detailed, describing the complete interaction flow including actors, steps, and conditions. Use cases predate Agile and are more common in traditional software development, though both are used today.
- Can you give a real example of a use case?
- Yes. For a banking app: Use Case: 'Transfer Money.' Actor: Bank customer. Precondition: User is logged in with sufficient funds. Main Flow: (1) User selects transfer option, (2) enters recipient account, (3) enters amount, (4) reviews details, (5) confirms transfer, (6) receives confirmation. Postcondition: Money is transferred and balance is updated.
