PLUS Prefix

How to read MAXOBJECT counts as an add-on's real database footprint, why HSE ships inside Oil & Gas under one shared PLUSG prefix, why Aviation conflicts with almost everything, and the exact MAS 9 compatibility matrix that tells you which extensions can coexist.

Venkat AchantaJul 15, 2026Part 4 of 6

A developer's deep dive into the four-file MBO pattern behind every Maximo object, how MAXOBJECT.CLASSNAME links to the MBO Set, and how a PLUS extension layers on.

Venkat AchantaJul 15, 2026Part 1 of 6

The reference every Maximo developer bookmarks: the complete PLUS prefix directory (PLUSA through PLUSV, TLOAM, custom), which prefixes are included capabilities versus paid add-ons versus legacy, the five-layer extension hierarchy, and exactly how Maximo stitches multiple add-ons into one MBO inheritance chain — with the WorkOrder and Asset chains resolved step by step.

Venkat Achanta

A developer's deep dive into how IBM Maximo add-ons and industry solutions extend the core through Java — PLUS prefixes, MBO inheritance chains, product.xml, bytecode injection, the compatibility matrix, the MAS 9 Customization Archive, and the Java 17 shift.

Venkat Achanta