In Practice

We are going to put the principles we just investigated into practice in addition to the guide design and application development process. Often as a project is moving it becomes difficult to elicit good and correct requirements from end users. You are asking them to visualize something that has not been created yet. More likely than not, you are forced to create any number of the following:

• Storyboards— The process for which screen layout and flow are designed without focus on any of the underlying details of the form.

• Screen mock-ups— The process for which a requirements gather may use something like Microsoft’s Visio or similar tool to mock up a screen.

• Screen prototype— The process for which a developer analyzes and designs a nonfunctional but viable user interface for an application. This adds the clarity and accuracy of the collected requirements.