Developing a web app—designing the app

When developing our web app, it’s important to start by identifying what it needs to do. By using the Carborelli’s web app, users will be able to:

• Choose up to three ice cream flavors for a sundae

• Add extras such as sprinkles

• Choose to eat the sundae in or order the ingredients for delivery

• Make a purchase via PayPal

• Choose a collection or delivery time

Users will also have access to information such as opening hours, menu, and so on, on the main site.

In terms of the look and feel of the app, we need it to do the following:

• Make the process very clear and simple so that users can start building their sundae as soon as they arrive on the site

• Give signposts as the users progress through the app so that they know how far through the process they have got

• Make it fun and visually appealing

Let’s imagine that we have created a mockup for the app’s home page, which looks like the following screenshot:

As we can see, this design has some things in common with the main...