ABSTRACT
To ensure product reliability, an organization must follow certain practices during the product development process. These practices impact reliability through the selection of parts (materials), product design, manufacturing, assembly, shipping and
handling, operation, maintenance, and repair. The practices are listed here and are described in this book:
9.2 PRODUCT REQUIREMENTS AND CONSTRAINTS
There are various reasons to justify the creation, modification, or upgrade of a product. For example, a company may want to address a perceived market need or to open new markets. In some cases, a company may need to develop new products to remain competitive in a key market or to maintain market share and customer confidence. In other cases, a company may want to satisfy specific strategic customers, to demonstrate experience with a new technology or methodology, or to improve maintainability of an existing product. In addition, product updates are often developed to reduce the life-cycle costs of an existing product.
