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New Recommended Practice 139R-25: Cost Estimate Classification System – As Applied in Decommissioning for the Offshore Petroleum Exploration and Production Industries

The overall purpose of this recommended practice is to provide the offshore E&P industry with a decommissioning definition deliverable maturity matrix that is not provided in 17R-97. It also provides an approximate representation of the relationship of specific design input data and scope deliverable maturity to the estimate accuracy and methodology used to produce the cost estimate. The estimate accuracy range is driven by many other variables and risks, so the maturity and quality of the scope definition available at the time of the estimate is not the sole determinate of accuracy; risk analysis is required for that purpose…

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New Recommended Practice 138R-25: Introduction to Life Cycle Cost Analysis

Life cycle cost analysis (LCCA) is a comprehensive economic assessment method used to evaluate the total cost of owning, operating, maintaining, refurbishing, and disposing of an asset over its expected life span. LCCA extends beyond initial acquisition or construction costs to include all subsequent expenses, such as operation, maintenance, upgrades, and eventual disposal costs, as well as the potential savings or benefits over the asset’s life. The primary purpose of LCCA is to assist decision-makers in choosing the most cost-effective option among different competing alternatives. By evaluating the total cost of ownership of a project, asset, or system over its entire lifespan, LCCA enables informed decision-making that balances initial investment costs with long-term operational, maintenance, and disposal costs…

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New Recommended Practice 135R-24: System Dynamics Modeling to Demonstrate Entitlement to Project Disruption Costs

This recommended practice (RP) of AACE International provides guidance on using system dynamics modeling (SD) to produce expert evidence to support entitlement to compensation for claims arising from disruption in construction and engineering projects. System dynamics assists in identifying and quantifying the root causes, damages, and delays resulting from project disruption…

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New Recommended Practice 133R-23: Using Decision Analysis Methodologies to Enhance Decision Quality

This recommended practice (RP) of AACE International defines the use of the discipline of decision analysis (DA) to structure, analyze, and generate stakeholder decision buy-in and commitment to important organizational decisions, whether made by a team, group or individual. It illustrates how modern decision analysis methods can be applied broadly to making decisions on projects, programs, and at the enterprise level in the presence of uncertainty…

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New Recommended Practice 125R-22: Developing Work Packages and Planning Packages in Support of Performance Management

This recommended practice (RP) discusses control accounts (CAs) at a high level and describes the purpose, development, and management of both work packages (WP) and planning packages (PP) in support of performance management in any project or contract environment. This RP also discusses some basic background for work package design development and execution, which is based on the decomposition of project scope elements as defined in the statement of work (SOW). The RP’s recommendations apply to projects as described but can be used similarly for programs…

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