> For the complete documentation index, see [llms.txt](https://docs.editran.onesait.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.editran.onesait.com/documentacion-editran/ibm-editran-v5.3-cics-en/download-cics-version/introduction.md).

# Introduction

This document is intended to be an abbreviated guide that helps locate the various points to take into account when installing editran. It only presents the basic model for processing the information received, since multiple variants can be established from it.

It is recommended to perform two operations that will not be taken into account in this manual:

* If a reinstallation is to be performed (version or phase update), first make a backup of the editran files and libraries.
* Perform tests in another CICS before moving to production.

In editran, most resources have a standard nomenclature, for example in the string ZTxyz\*:

* The character x indicates the version. For 5.0, 5.1, 5.2 and 5.3, x=B (ZTB\*).
* The character e indicates the product being referred to. The values of y can be, among others: P=editran/P, G=editran/G, E=editran/E, T=editran/TR, L=License, M=Migration, S=Cryptography, etc.
* The character z indicates the type of resource. The values of y can be, among others: F=File, B=batch program, P=online program, M=Map, C=Copy, I=Include, J=JCL, P=Procedure, Q=TS queue, etc.

ℹ️In this document, reference is normally made to ZTB\* (v5.3).


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