Justinmind’s Data Master feature enables you to create a small database for your users to interact with. Your interface isn’t going to be much use for testing if your participants don’t have any data to work with. In this case, the Search element is dropped onto the canvas. Drag items from the library to place them on the canvas. If you’re developing a mobile app, you can download additional widget libraries for controls specific to iOS and Android interfaces. You can build navigation menus, navigation trees, radio lists, and more. The basic library includes a vast array of text boxes and buttons and more advanced controls, like a file-upload element and a date picker. Justinmind has a robust library of interface controls, or widgets, right out of the box. Need a link to take the user to another page in the site? Simply drag that page to the menu or button, and the navigation action is created (see Figure 3). Drag-and-Drop Interface Elements and Actionsīuild a prototype quickly by dragging interface elements from the widget library to the canvas. Additionally, Justinmind makes it easy to create a small database for use with your prototype. If you need to add interactivity, drag actions to elements on the canvas to make those elements functional. The robust library of interface elements means you won’t spend a lot of time developing your own from scratch. Justinmind’s drag-and-drop interface enables you to quickly drop interface elements, called widgets, onto the canvas to create a wireframe in minutes. Online sharing enables you to connect to usability testing tools.Īlthough Justinmind offers the ability to connect to these usability testing services, the limitations in the actual prototypes make it clear that the real intent of the software is to create light-weight, proof-of-concept prototypes for presentations where the user input is predictable. To connect your project to these services, you’ll need to share your project in the Justinmind application, and then go to your Justinmind online account, locate your project, and select the Usability Testing Tools option from the Action drop-down. Having said that, Justinmind makes concessions for usability testing by integrating with such third-party services as Validately, UsabilityTest, and Google Analytics (see Figure 2). The built-in tools are designed to enable you to share your prototype with stakeholders and solicit feedback through comments. The primary focus of Justinmind seems to be collaboration between UX designers and developers, rather than usability research. Justinmind Prototyper drag-and-drop interface. Simply drag controls, text boxes, and other elements onto the canvas, and add an action, a calculation, or other functionality (see Figure 1). The Justinmind Prototyper allows you to develop functional wireframes for websites, desktop programs, and mobile apps. Justinmind, however, has some limitations, so it may not be suitable for all of your projects. The Justinmind Prototyper ( provides a flexible platform for developing interactive, low-fidelity prototypes for your usability tests. There are, of course, many ways to mitigate a prototype failure, like beta testing or falling back on paper prototypes, but selecting the right tool for developing your prototype is the best first step. Any of these situations can skew key metrics, such as memorability, learnability, perception of errors, and satisfaction, and can ultimately distort your test results. A malfunctioning prototype may cause test participants to be confused, question whether they completed a task, or spend valuable test time remarking on the limitations of the prototype. All of your careful planning, participant selection, and test development can be undone if your prototype fails during testing. One of the foundations of an effective usability test is selecting the right tools.
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