10S-90: Cost Engineering Terminology

This document provides terms commonly used in all facets of cost engineering and in total cost management. Unless otherwise noted, all terms contained in this document have been developed by various AACE International technical subcommittees, special interest groups, or project teams. All terms have been subject to a thorough review process, followed by approval by the AACE International Technical Board.

Any terms found in AACE Recommended Practice 10S-90, Cost Engineering Terminology, supersede terms defined in other AACE work products, including but not limited to, other recommended practices, the Total Cost Management Framework, and Skills & Knowledge of Cost Engineering.

Changes in August 23, 2022 revision:

BALANCED SCORECARD (new)
CHANGE ORDER REQUEST (COR) (new)
CONTRACT, TIME AND MATERIALS (T&M) (new)
ENGINEERING PROCUREMENT CONSTRUCTION (EPC) (new)
FRONT END LOADING (FEL) (revised)
QUALITATIVE RISK ASSESSMENT (QLRA) (revised)
QUANTITATIVE RISK ANALYSIS (QRA) (revised)
RISK ANALYSIS (revised)
RISK ASSESSMENT (revised)
RISK MATRIX (revised)
RISK SCREENING (revised)
UNBALANCING (revised)

AACE Members may download the RP free of charge here:
https://web.aacei.org/docs/default-source/rps/10S-90.pdf

Non-members may get the RP, free of charge here:
https://www.pathlms.com/aace/courses/2928/documents/3796

A web-based (non-PDF) version is available here:
https://library.aacei.org/terminology/welcome.shtml