Android Design Patterns: Interaction Design Solutions for Developers

Chapter 12

Mobile Banking

This chapter departs from the format of the book somewhat. So far the book has referred heavily to e-commerce, social media, lifestyle, productivity applications, and games. This chapter focuses specifically on the rapidly emerging field of mobile personal finance and mobile banking. In keeping with the Pet Shop theme, you can imagine you formed your own Pet Shop Bank—maybe to save for Fido’s retirement? Although these patterns are placed in the context of mobile banking, these same patterns and considerations apply just as readily to any long forms and complex workflows that deal with high-stakes data entry in a security-conscious environment.

12.1 Pattern: Login Accelerator

The Login Accelerator pattern enables accelerated mobile login using a short code, facial recognition, or voice imprint while providing an acceptable level of security.

How It Works

Some banks offer the customer the option to add the device to the list of “approved” devices by installing a special code on the device in a form similar to that of a browser cookie. The customer also sets up a second level of authentication in the form of a four - to six-digit numeric code, a picture of his face, a voice imprint, or some other mechanism that involves less typing than the typical username/password combination.

Example

To set up an accelerated login, some mobile banking apps, such as Chase (see Figure 12-1), force the customer to set up two-factor authentication. The first part of the ...