In addition to creating pseudocode and a flowchart for your app, you$$ll also create a basic GUI design for your app. You can use Microsoft PowerPoint or Apache OpenOffice Impress to lay out your GUI and indicate components such as buttons, text boxes, sliders, and others. Be sure to label your GUI design with component names and indicate their properties. When you$$re finished, save your GUI design as a Portable Document Format $($PDF$)$ file