Application tools The platform provides several tools to create, manage, and deploy applications. Automated Test FrameworkWith the Automated Test Framework (ATF), you create and run automated tests on your ServiceNow instance. When you upgrade or modify an instance, run these tests to confirm that the instance still works as designed.ServiceNow StudioServiceNow Studio provides an IDE-like interface for application developers to work on custom applications in one centralized location. It offers a simple way to identify and interact with application files, create files as you develop, and modify existing application files in a tabbed environment.Service CreatorService creator enables a department to offer custom services through the service catalog, such as the HR department offering tuition reimbursement for further education.Team DevelopmentTeam Development supports parallel development on multiple, sub-production ServiceNow instances.System update setsAn update set is a group of configuration changes that can be moved from one instance to another. This feature allows administrators to group a series of changes into a named set and then move them as a unit to other systems for testing or deployment.