Product development is the set of activities from perceiving a market opportunity to delivering a product to customers. It aims to present methods that coordinate marketing, design, and manufacturing functions within an organization. The production-consumption cycle consists of four key steps: production, distribution, consumption, and recovery of a product.

1. What is product development ?
➢Product Development is the set of activities ,beginning with the
perception of a market opportunity and ending in the production , sales
and delivery of a product.
➢The goal of the subject is to present a clear and detailed way a set of
product development methods while focusing together the marketing,
Design and manufacturing functions of the organization.
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2. Product-Consumption Cycle
➢ Production-consumption cycle is one of the most important features
of socio-ecological systems.
It consists of four steps:
1. Production
2. Distribution
3. Consumption
4. Recovery
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