T/GRTIA 1-2025 Urban rail transit equipment trustworthiness management system requirements

Scope

Main technical content: This document describes the requirements for establishing a credibility quality management system in the process of credibility management for urban rail transit equipment manufacturing and service-related organizations. In this document, credibility refers to a term used to describe the time-related characteristics of product performance in urban rail transit systems. Credibility is a comprehensive expression of reliability, availability, maintainability, safety (RAMS), and maintainability, and it also includes the economic viability of equipment, measured by the full life cycle cost (LCC). Credibility builds trust and confidence and affects an organization's ability to meet its goals. It can be achieved through effective planning and implementation of credibility activities throughout the product life cycle. In this document, credibility will significantly affect users' perception of the value of products or services developed or provided by the organization. Low credibility will affect the achievement of organizational goals and damage its reputation. Credibility promotes technological improvement, innovation, and product iteration in the organization. The credibility obtained through the full life cycle process may be influenced by market dynamics, the global economy, resource allocation, changes in user needs, and competitive environments. Strategic deployment needs to adapt to anticipated changes to survive in business operations. Credibility management focuses on stakeholders improving organizational goals and return on investment by optimizing credibility. This document is specifically designed for technical systems, products, processes, and services, which are described herein using the generic term "equipment" or "product" and their services. Most of the content in the standard is generic and can also be applied to various non-technical applications. In addition, when optimizing credibility, it is necessary to identify, analyze, and

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