Net Promoter Score (NPS)

Concurrent engineering, also known as simultaneous engineering, is a design philosophy that emphasizes the parallelization of tasks. Instead of a sequential process where design is completed before manufacturing is considered, it involves a team-based approach where designers, manufacturing engineers, and other stakeholders work together from the outset. This overlap significantly reduces product development time and improves design quality.

Biomimicry is an innovation approach that seeks sustainable solutions to human challenges by emulating nature's time-tested patterns and strategies. The core idea is that nature, through 3.8 billion years of evolution, has already solved many of the problems we are grappling with. It involves observing and learning from the designs and processes of organisms and ecosystems to create more sustainable designs.

The Peer-to-Peer (P2P) platform model is a technological and business framework that directly connects individuals to transact with each other, bypassing traditional intermediaries. In the sharing economy, these platforms facilitate the exchange of goods, services, or capital. They typically provide the underlying infrastructure, including search functionalities, payment processing systems, and crucial reputation and trust-building mechanisms.

The Net Promoter Score (NPS) is a widely used market research metric that measures customer loyalty and their willingness to engage in word-of-mouth marketing. It is based on a single survey question: "How likely is it that you would recommend our company/product/service to a friend or colleague?" The score is calculated as the percentage of "Promoters" minus the percentage of "Detractors."

The Finite Volume Method (FVM) is a dominant numerical technique in CFD for solving partial differential equations. It discretizes the domain into a mesh of control volumes and applies the governing equations in their integral form to each volume. By converting volume integrals to surface integrals using the divergence theorem, it focuses on calculating the flux of conserved properties across cell faces.

Viral marketing describes any marketing strategy that encourages individuals to pass on a marketing message to others, creating the potential for exponential growth in the message's exposure and influence. Like viruses, such strategies take advantage of rapid multiplication to explode the message from person to person. It is a form of amplified word-of-mouth, often facilitated by the internet.

The Direct-to-Consumer (DTC) model is a business strategy where a company manufactures and ships its products directly to buyers, bypassing traditional intermediaries like wholesalers or retailers. This approach primarily leverages e-commerce platforms and digital marketing to establish a direct relationship with the end consumer, enabling greater control over branding, customer experience, and pricing structures.

Cradle-to-Cradle (C2C) is a design philosophy that models human industry on nature's processes. It views materials as "nutrients" circulating in closed-loop systems. The framework distinguishes between two cycles: the biological cycle, for biodegradable materials that can safely return to the soil, and the technical cycle, for materials that are continuously reused or upcycled in industrial processes without losing quality.

General relativity predicts that accelerating masses generate ripples in the fabric of spacetime called gravitational waves. These waves propagate outwards at the speed of light, carrying energy as gravitational radiation. They are created by cataclysmic cosmic events like the merger of black holes or neutron stars, causing spacetime to stretch and squeeze as they pass.