Enterprise Technology Glossary

6,173 results · page 88 of 309

• Direct and Indirect Emissions

  Direct and indirect emissions categorize an organization’s greenhouse gas emissions into those from owned or controlled sources and those from activities in its energy use and value chain, which enables structured carbon accounting, compliance reporting, and climate strategy development in enterprise environments.

• Direct-Attached Storage

  Direct-attached storage (DAS) is a storage architecture in which disks or other storage devices connect directly to a single server without a separate storage network. It matters in enterprise environments for host-local performance, bounded management scope, and workload-specific deployment models.

• Direct Current (DC) Distribution

  Direct current (DC) distribution is an electrical power distribution approach that delivers and uses unidirectional current at specified DC voltage levels, relevant for enterprises designing data centers, telecom facilities, and microgrids that connect DC-native loads, renewable generation, storage, and existing AC infrastructure.

• Direct Expansion (DX) Cooling

  Direct expansion (DX) cooling is a vapor-compression refrigeration method that cools air or another medium by circulating refrigerant directly through an evaporator coil, which matters in enterprise facilities because it affects energy use, capacity planning, and thermal risk for IT environments.

• Direct Liquid Cooling

  Direct liquid cooling is a data center cooling approach in which liquid removes heat directly from IT components or their immediate environment. It matters in enterprise contexts because it supports high-power processors, higher rack densities, and more controlled energy use for cooling.

• Direct Memory Access

  Direct memory access is a hardware-based method that lets peripherals transfer data directly to and from main memory without continuous CPU involvement, which reduces processor overhead and underpins many storage, networking, and accelerator workloads in enterprise and data center environments.

• Directory Service

  Directory service is a network-based system that stores and exposes identity and resource information for authentication, authorization, and policy enforcement in enterprises, providing a central reference for users, devices, and services across operating systems, applications, and network infrastructure.

• Direct Peering

  Direct peering is a private, bilateral interconnection between two autonomous systems or networks that exchange traffic directly instead of via a transit provider. It matters to enterprises for routing control, performance management, and cost optimization in Internet and cloud connectivity.

• Direct-to-Chip Cooling

  Direct-to-chip cooling is a liquid-based data center cooling method in which coolant flows through cold plates mounted directly on processors and other high-power chips, enabling higher rack power densities and more controlled energy use compared with air-only approaches in enterprise environments.

• Disaggregated Compute

  Disaggregated compute is a data center and cloud architecture pattern that pools CPUs, memory, storage, and accelerators as separate resources connected by high-speed fabrics, enabling dynamic composition of compute nodes and more granular hardware provisioning for enterprise workloads and infrastructure planning.

• Disaggregated Memory Architecture

  Disaggregated memory architecture is a data center design model in which memory is decoupled from individual servers and exposed as shared pools over a high-speed fabric, enabling more flexible allocation, utilization, and management of memory resources for enterprise workloads.

• Disaggregated Memory Fabric

  Disaggregated memory fabric is a data center architecture pattern that separates memory from compute and connects them over a high-speed fabric, enabling multiple servers to access shared memory pools and allowing enterprises to allocate memory capacity more flexibly across workloads.

• Disaggregated Silicon

  Disaggregated silicon is a processor design approach that decomposes a system-on-chip into multiple chiplets or dies within one package, using high-bandwidth interconnects, and matters to enterprises because it affects performance, power, cost structures, and architectural planning for data center hardware.

• Disaster Recovery

  Disaster recovery is the organized set of policies, processes, and technologies that restore IT systems, applications, and data after disruptive events, enabling enterprises to meet availability, compliance, and resilience requirements within defined recovery time and recovery point objectives.

• Disaster Recovery Plan

  Disaster recovery plan is a documented set of procedures and responsibilities that guides how an organization restores IT systems, data, and infrastructure after disruptive events, enabling recovery within defined time and data loss objectives for compliance, operational continuity, and risk management.

• Discount Coverage Ratio

  Discount coverage ratio is a fixed-income analytics metric that compares a bond’s yield or coupon with a benchmark rate, enabling enterprises and financial institutions to evaluate whether discounted securities provide adequate yield compensation relative to reference yield curves in portfolios and risk systems.

• Discretionary Access Control

  Discretionary access control is a security model in which the owner of a resource determines which users or processes can access that resource and with what permissions, which matters for how enterprises manage data sharing, governance, and insider risk.

• Discriminator Network

  Discriminator network is a neural network component in a generative adversarial network that classifies inputs as real or generated, providing the training signal that constrains generator outputs and affects data fidelity, model reliability and governance in enterprise AI workflows.

• Disinformation Security

  Disinformation security is the set of organizational policies, processes, and technical controls that detect, analyze, and mitigate false or manipulated information targeting an enterprise’s systems, brands, or stakeholders, supporting operational continuity, risk management, and information integrity across digital channels.

• Disk Encryption

  Disk encryption is a method for protecting data at rest by converting all information on a storage device into ciphertext using cryptographic algorithms, so that only authenticated users or systems with valid decryption keys can access the readable data in enterprise environments.