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The data annotation attributes fall into three categories: How to Perform Validation on custom Model or custom Class The Data Validation is the heart of any application. Data Annotations, so this must be added as a reference to your application.The steps to create a Validation Frame are as follows. Step 2: Create an Interface, all model class on which we want to perform Validation, all the classes inherit from this interface.They are easy to maintain and can be kept in a version control system.Load Gen - An open source load testing tool by Stanly Thomas and Mythili Vutukuru, developed as a web app.Enables users to stress test websites, web apps, and APIs using real browsersnot headless browsers or other emulators.Simulate globally-distributed traffic or local traffic from a single geographic location.Developed based on fiber, a user-level thread implementation in Java.The tool is useful in scenarios where the requests have high response times.

Agileload - Load test tool from Agile Load SA for testing all types of web and mobile applications.

This allows you to write very expressive scenarios in Python without complicating your code with callbacks.

Load View - Cloud-based, fully-managed performance testing tool from Dotcom-Monitor.

Output of the above example: Conclusion With the help of Data Annotation, it is very easy to create a validating model and we can write a centralized mechanism for validation; this will help to reduce code size as well as code re-usability. NET MVC or WCF RIA Services we can also implement such validators.

Load and Performance Test Tools Page Speed Testing Tools Mobile Web/App Testing Tools Visual Regression Testing Tools Link Checkers HTML Validators Web Accessibility Testing Tools Web Services Test Tools Note: Categories are not well-defined and some tools could have been listed in several categories; the 'Web Site Management Tools' category includes products that contain: site version control tools, combined utilities/tools, server management and optimization tools, and authoring/publishing/deployment tools that include significant site management or testing capabilities.

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