Software Testing Levels
Testing happens at several levels including Unit, Integration, System and Acceptance. Each level covers a different scope, from isolated code components to the entire product.
Take a banking application as an example. Developers test individual functions, then test how modules communicate, then evaluate the whole system from a user perspective and finally validate the product in real business scenarios. These layers work together to find defects early and prevent late project surprises.
Put these techniques into practice with step-by-step testing tutorials, ready-to-use templates, and toolkits.
