This NASA Technical Handbook provides guidance for establishing NASA's digital engineering acquisition framework that includes Data Requirements Descriptions (DRDs) and contractual language for the Statement of Work (SOW) in support of a digital engineering environment (DEE). A DEE will modernize how the Agency conceptualizes, designs, develops, delivers, operates, and sustains systems. A DEE will help enable collaborative digital engineering while integrating stakeholders with authoritative decentralized sources of data and models seamlessly across organizations and disciplines supporting life-cycle activities from concept through disposal. Digital engineering is the integrated digital approach that utilizes authoritative sources for product and system data and associated models collaboratively across all product-involved disciplines supporting life-cycle activities from conceptualization through disposal (Pre-Phase A through F). A DEE enables the interconnected data, people, processes, and technology used to store, access, analyze, and visualize evolving systems' data and models to address the needs of enterprise-wide stakeholders. It provides information referencing topics such as model-based definitions (MBD) (annotated 3D CAD models), model-based analyses (MBA), model-based systems engineering (MBSE), model-based enterprise (MBE) (aiding manufacturers to integrate system, service, product, process, and logistics models across the manufacturing/support enterprise), product data and life-cycle management (PDLM), and general guidance to adapt the methods needed to implement digital engineering product/data acquisition requirements maximizing model representations. This NASA Technical Handbook supersedes NASA-HDBK-0008, NASA Product Data and Life-Cycle Management (PDLM) Handbook. NASA Endorsed.