Explaining

Let me share my screen so you can see the demo.

Start a screen share.

As you can see, the error rate dropped after the fix.

Point the audience to evidence on screen.

Does that make sense so far?

Check the audience is following.

Let me give you a high-level overview first.

Start a presentation with the big picture.

If we zoom in on the payment service, you'll see three main components.

Move from the overview to the details.

In other words, we only process each event once.

Rephrase a technical point more simply.

Let's move on to the deployment part.

Transition to the next section.

I don't know that off the top of my head, but I'll find out.

Answer honestly when you don't know.

On the left you can see the client, and on the right is the API gateway.

Guide people through a diagram.

That's a good question. The short answer is yes.

Take a second, then answer directly.

Let me start with why we need this change.

Open with the motivation.

I know that was a lot. Any questions before I continue?

Pause after dense content.

The context is that our checkout is getting slower every month.

Set the background before the problem.

The downside is that we'll have to maintain two versions for a while.

Admit a weakness of your own proposal.

The key point here is that the data never leaves the region.

Highlight the most important idea.

The main reason is that we need to support offline mode.

Give the core reason for a decision.

The problem is that every request hits the database directly.

State the core problem clearly.

This feature lets you export reports without asking the support team.

Describe a feature by its benefit to the user.

To give you an example, a checkout request takes about two seconds today.

Make an abstract point concrete.

Under the hood, it's just a scheduled job that reads from the queue.

Explain how something works internally.

Let me walk you through the request flow.

Offer to explain a process step by step.

In the end, we decided to go with Postgres because the team already knows it.

Explain the final decision and why.

We looked at three options.

Introduce the options you compared.