# Concepts and definitions
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 This section describes key concepts and defines terminology specific to this solution:  

 **application** 

 A logical group of AWS resources that you want to operate as a unit. 

 **workflow** 

 Generated [state machines](https://docs.aws.amazon.com/step-functions/latest/dg/welcome.html) that run a number of operations in sequence. 

 **proxies** 

 Files created at a lower resolution using compression technology for video, audio, images, and documents. 

 **LTO** 

 Linear Tape-Open is a magnetic tape data storage technology used for backup and archiving purposes. 

 **MAM** 

 Media Asset Management is a software tool that centrally manages, organizes, and catalogs media assets. MAM provides the option to associate media assets to one or several files with customized metadata to ease the content searching, retrieving, and distribution tasks. 

**Note**  
 For a general reference of AWS terms, see the [AWS Glossary](https://docs.aws.amazon.com/general/latest/gr/glos-chap.html).