CEMLI is an ERP software extension framework provided in Oracle Applications by Oracle Corporation. CEMLI is Oracle’s published guidelines for developing and implementing custom extensions to Oracle Applications.
They are used to improve flexibility and extra functionality not available in the standard product. CEMLI stands for Configuration/Customization, Extension, Modification, Localization, and Integration Framework. There are (at least) 19 categories of extensions that any client can choose from, to enhance their Oracle system.
Initially the acronym CEMLI was used by Oracle OnDemand (EBS Hosting) to classify and evaluate the impact when a customized EBS solution shall be overtaken into hosting mode. OnDemand has defined restrictive rules how a customization has to be implemented and which documentation has to be provided. In addition to OnDemand, in between also Oracle Development, the Consulting organization and Oracle's Method (OUM) has adapted the acronym CEMLI, and is using it in offers and implementation projects.
On top of the OnDemand rules, Oracle Consulting has specified further criteria and best practice how to create custom code. The challenge here is to avoid modifications, although custom code shall be tightly integrated and not "visible" as custom code to the end users (same behavior as standard functionality). There are a number of techniques and procedures to implement CEMLIs in a most appropriate and safe way, such as Descriptive Flexfields (DFF), Forms Folders, Workflows, Forms and Framework (OAF) Personalizations, BI Publisher Reports, Business Events and User Hooks. Using one of these techniques allows to plug in additional functionality without modifying existing EBS standard code.