PLM costing and components - a brief

PLM costing involves a complex interplay of components working together to provide a comprehensive view of product costs throughout its lifecycle. Here's a breakdown of the key components:

1. Cost Estimation Tools & Methodologies:

• Bottom-up Costing: This involves estimating the cost of each individual component and assembly in the product, then rolling those costs up to calculate the total cost. PLM systems facilitate this by providing detailed information on materials, quantities, and manufacturing processes.
• Top-down Costing: This approach uses historical data and high-level estimates to determine the overall cost of the product. PLM systems can leverage past product data and market trends to refine these estimates.
• Parametric Costing: This method uses statistical relationships between product parameters (e.g., size, weight, complexity) and cost drivers to estimate costs. PLM systems can help define these relationships and automate cost calculations based on design parameters.
• Activity-Based Costing (ABC): This technique allocates costs based on the activities involved in producing the product. PLM systems can track these activities and provide data for accurate cost allocation.

2. Data Management & Integration:

• Bill of Materials (BOM) Management: PLM systems manage the BOM, which provides a structured list of all components and sub-assemblies in the product. This information is crucial for accurate cost estimation.
• Routing & Process Management: PLM systems capture information about the manufacturing processes and routing steps involved in producing the product. This data is used to estimate labor costs, machine time, and other production-related expenses.
• Integration with other Systems: PLM systems integrate with other enterprise systems, such as ERP (e.g., SAP S/4HANA), CAD, and simulation tools. This integration ensures data consistency and facilitates a holistic view of product costs.

3. Cost Analysis & Reporting:

• Cost Breakdown Analysis: PLM systems provide detailed cost breakdowns by component, process, and cost element. This allows for identifying cost drivers and areas for optimization.
• Variance Analysis: PLM systems can compare actual costs with estimated costs to identify variances and understand their causes. This feedback loop helps improve cost estimation accuracy.
• What-if Analysis & Simulation: PLM systems allow for simulating different scenarios and evaluating their impact on product costs. This helps in making informed decisions about design alternatives and manufacturing processes.
• Reporting & Visualization: PLM systems offer reporting and visualization tools to communicate cost information effectively to stakeholders.

4. Collaboration & Workflow:

• Cross-functional Collaboration: PLM systems facilitate collaboration between different departments involved in the product lifecycle, such as engineering, manufacturing, purchasing, and finance. This ensures everyone has access to the same cost information and can contribute to cost optimization.
• Workflow Automation: PLM systems automate costing-related workflows, such as cost estimation approvals, change management, and data transfer to ERP systems. This streamlines processes and reduces manual effort.

5. Lifecycle Costing:

• Concept to End-of-Life: PLM systems consider costs throughout the entire product lifecycle, from initial design and development to manufacturing, service, and eventual disposal. This provides a complete picture of the product's financial performance.
• Cost Drivers & Trends: PLM systems help identify cost drivers and trends over time, enabling proactive cost management and informed decision-making.

By effectively utilizing these components, PLM costing empowers businesses to optimize product costs, improve profitability, and gain a competitive advantage in the market.