As we get started on our design project,

here are a few principles that will be helpful to keep in mind.

Don't limit yourself to just these principles.

But this will get you to focus on a few things as you're making design decisions

about how to design the user experience and interface.

User should not have to wonder whether different word situations or

actions mean the same thing?

Therefore you should design interfaces to have similar operations and

use similar elements for achieving similar tasks.

For example, when you're designing a select function in an app, users should

use the same operation to select objects throughout the entire app or

make sure that the layout and interactions are consistent throughout.

Layout is important for creating meaningful and

useful experiences in a product.

As a person scans a page of information, they form an understanding

about what a product can do for them and what they can do using your services.

As a designer your goal is to help that learning process and

to motivate interaction.

The design should be thoughtfully organized with related features

content areas appropriately grouped, instead of forcing people to jump back and

forth around different areas to perform a single task.

In order to gain the confidence of your users,

you need to earn it by doing what you say you're going to do.

Setting people's expectations appropriately and following through.

One of the primary goals of experience design is to make things efficient for

people before making things efficient for the computer.

[SOUND] Efficiency allows for productivity and reduced effort and

a streamlined design allows more to get done in the same amount of time.

Creating efficiency demonstrates a great deal of respect for your customers.

And they'll be sure to notice.

We'll be revisiting these principles later as you being to design your mobile app and

start making design decisions.