# Application Development

Consider the following recommendations when developing your VisionPro Deep Learning application:

- Create clones of tools to do A to B comparisons.

  By making a clone of a tool, you can then change parameters and retrain, and then compare the original against the clone to see the effect of the tool parameter changes.

- Create clones of streams to perform image set testing.

  If you have a large batch of images that you want to use for testing, but you do not want to contaminate your database, clone a stream and add the images to the clone. Then you can process the current tool state to test. When you are done, delete the cloned stream.

- Do not add duplicate images in order to "trick" the tools.

  This negatively impacts the model. Instead, if you want to increase the training weight for specific images, use the Class Weights option of Green Classify High Detail.

- Perform "bootstrap" labeling. For more information, see Bootstrap Labeling.