Industrial Plants and Production Systems Review

Comprehensive vocabulary flashcards covering production systems, industrial plant design, performance metrics, accounting, and investment analysis as discussed in the lecture notes.

Production System

The set of men, machines, equipment, and other company subsystems aimed at transforming input materials and components into higher-value and sellable output goods and services, available in fixed quantities and deadlines with specific quality levels.

Production Process

The transformation of materials into products inside a production system through energy exchanges involving physical or chemical changes, or labor interventions such as assembly that change morphological characteristics.

Enterprise

The top-level hierarchy of a production system, potentially operating across multiple production sites or industrial plants.

Work Unit

The elementary production elements within a work center where specific operations are performed.

Information System

An ordered set of elements that collect, process, exchange, and archive data to produce and distribute information to the people who need it at the right time and place.

Scheduling

The creation of short-term operational sequences (weeks) transferred to operators and machines to realize what has been programmed.

Time to Market

The time that elapses between the moment the idea for a new product is born and the day it is actually available on the market.

Economies of Scale

The decrease in production costs obtained through growth in volumes, primarily realized by high resource saturation and efficiency.

Economies of Scope

Savings deriving from the joint production of different products using the same production factors, such as the same plants or know-how.

Variety Reduction Program (VRP)

A technique aimed at containing costs and variety by developing an entire range of products simultaneously to reduce component variety and quantity while maintaining market differentiation.

Core Product

The part of a product family composed of fixed parts that provide basic functionality and are not perceived as differentiating elements by the customer.

Product Lifecycle (Market Perspective)

A model describing the stages of a product's market presence: Development, Introduction, Growth, Maturity, and Decline.

Servitization

The evolution in production systems where customers shift interest from product ownership to the use of a service or the result provided by product functionalities.

Product Service System (PSS)

An integrated system of products and services designed to satisfy customer needs where value is created by supporting customer activities during the product's entire life cycle.

Ubicazione (Location)

The selection process for the localization of a production unit or industrial plant based on technical, economic, and environmental objectives.

SKU (Stock Keeping Unit)

Also known as an item or reference, it is the specific product clearly distinguishable from all others by characteristics like color, packaging, or size.

Bill of Materials (BOM)

A hierarchical and structural representation of a product showing the sub-assemblies, components, and raw materials needed to obtain a unit of finished product.

Modular Design

A design technique where products are composed of modules that are easily assembled through standardized interfaces, allowing tasks to be managed independently.

Delivery Lead Time

The time interval between the emission of an order by the customer and the required delivery time.

Make to Stock (MTS)

A production strategy where standard products are made for warehouse storage based on sales forecasts before a customer order is received.

Engineer to Order (ETO)

A strategy where design, industrialization, procurement, and production phases only begin after a specific customer order with functional specifications is received.

Customer Order Decoupling Point (CODP)

The point in the production system that separates activities performed based on forecasts (push) from those performed based on customer orders (pull).

Job Shop

A production system characterized by generic equipment and highly qualified labor, organized into departments by technological affinity for small series or single orders.

Group Technology

A design philosophy that aggregates resources into production cells to produce families of components with similar geometries or processes.

Flow Shop

An organization where machinery is sequenced according to the specific technological routing of the products, typically using automated transport systems.

Throughput Rate ($P$)

The expected rhythm of product generation, measured as volume produced divided by time: $P = \frac{q}{t}$.

Flow Index ($IF$)

The ratio between Flow Time ($TA$) and Value-Added Time ($TVA$): $IF = \frac{TA}{TVA}$.

Overall Equipment Effectiveness (OEE)

A global performance measure calculated as the product of Availability ($A_p$), Performance Efficiency ($E_p$), and Quality Rate ($Q$): $OEE = A_p \times E_p \times Q$.

Reliability ($R$)

The aptitude of an entity to perform a required function under specified environmental and operational conditions for a established time interval.

Mean Time to Failure (MTTF)

The average time an item remains functioning before failing, used for non-reparable items.

Mean Time Between Failures (MTBF)

The average time between successive failures for reparable items, calculated as $MTBF = MTTF + MTTR$.

Bathtub Curve

A curve describing the failure rate over time, composed of the burn-in period (infant mortality), useful life (constant failure rate), and wear-out period.

Fault Tree Analysis (FTA)

A deductive technique for the reliability study of complex systems based on identifying logical links between events that lead to a system failure.

Work In Process (WIP)

The quantity of materials currently in the production process waiting for subsequent operations.

Little's Law

The fundamental production formula stating that $WIP = P \times TA$, where $P$ is throughut and $TA$ is flow time.

Plant Layout

The planimetric arrangement of resources (areas, buildings, machines, workstations) inside the production site.

Relationship Chart (Buff Diagram)

A triangular diagram used to synthesize the importance and reasons for relationships between different activities or departments.

Centrifugal Services

Supply services where the flow proceeds from a generator/source toward the users, such as electricity or industrial water distribution.

Return on Investment (ROI)

The performance of the characteristic enterprise activity compared to the total investment (equity + debt): $ROI = \frac{\text{Operating Result}}{\text{Invested Capital}}$.

Direct Costing

A costing technique that assigns only variable costs to the product, excluding fixed structural costs.

Net Present Value (VAN/NPV)

The sum of the discounted differential cash flows ($FCF$) minus the initial investment: $VAN = \sum_{t=0}^{n} \frac{FCF_t}{(1+i)^t}$.

Internal Rate of Return (TIR/IRR)

The discount rate $i^*$ that makes the Net Present Value ($VAN$) of all cash flows equal to zero.

Weighted Average Cost of Capital (WACC)

A calculated rate reflecting the cost of different financing sources (debt and equity) used to fund an investment.