IETM (Interactive Electronic Technical Manual) is an interactive electronic/digital manual that can be found in PDF format. It is Level 2 IETM and is used to guide operators in troubleshooting systems or devices. The purpose of IETM is to provide easy access to documents and key points in a few clicks, allowing operators to resolve issues without connecting to OEMs or service centers. Level 3 IETM is more convenient and faster, as it converts all documents to a database, making searching and inter-document referring easier. IETMs are available in two standards: Indian Defense Standard (JSG 0852:2001) and European Aviation Standard (S1000D).