Glossary

Hackathon

A codefest, commonly referred to as a hackathon, is a collaborative coding event that unites computer programmers and other enthusiastic individuals to enhance or create a new software program.

Health Level 7

Health Level 7 (HL7) is a group of international standards that facilitate the exchange of data between computer systems used by healthcare organizations. The term HL7 is used to refer to both the organization responsible for developing and supporting these standards, as well as to the versions 2.x and 3 of the standards, along with other standards developed by local HL7 organizations across more than 35 countries. The number 7 in the HL7 name corresponds to layer 7 of the ISO/OSI reference model for communication (ISO7498-1), signifying that the standard specifies communication at the application level.

Helm Chart

A Helm chart is a collection of pre-configured Kubernetes resources that can be easily managed and deployed with the Helm tool. Charts offer a reproducible and shareable way of creating Kubernetes applications, ranging from simple resources like a memcached Pod to more complex stacks comprising HTTP servers, databases, caches, and more.

Hewlett Packard UniX

A operating system from Hewlett Packard, based on Unix.

High Speed Downlink Packet Access

UMTS-HSPA (High Speed Packet Access) enables laboratory downlink data rates of 14.6 Mbit/s and is also referred to as UMTS broadband.

High Speed Packet Access

An extension of the UMTS standard allows for higher data transfer rates. This extension includes HSDPA for increasing the downlink data transfer rate and HSUPA for increasing the uplink data transfer rate.

Historian

A historian is someone who is knowledgeable about the analysis and investigation of past occurrences.

Holder

The possession of one or more verifiable credentials allows an entity to carry out a role and create presentations based on them. The entity holding the credentials is usually, although not always, the subject of those credentials. Holders utilize credential repositories to keep their credentials stored.

Home Gateway Initiative

HGI is an open industry forum that was initiated by leading European telecommunications companies and NTT from Japan, and later supported by several manufacturer companies. Its goal is the joint development of a requirement specification for home gateways.

Home Grid Standard

The HomeGrid standard, also known as G.hn (G.9960, G.9961, G.9962, G.9963), is the most advanced technology for home networks. This technical standard was developed by the International Telecommunication Union (ITU) and is supported by the HomeGrid Forum and other organizations.

Horizontal Pod Autoscaler

Horizontal Pod Autoscaler (HPA) is a Kubernetes API resource that automatically adjusts the number of replicas of a Pod based on targeted CPU utilization or custom metric targets. HPA is usually utilized with ReplicationControllers, Deployments, or ReplicaSets, and cannot be applied to objects that cannot be scaled, such as DaemonSets.

Hortonworks Data Platform

The Hortonworks Data Platform (HDP) is a data platform designed, developed, and built as a fully open system, providing organizations with the ability to implement a modern data architecture. It offers an enterprise-ready solution for data processing.

HostAliases

HostAliases is a Kubernetes feature that allows a user to define a mapping between IP addresses and hostnames that should be added to a Pod's /etc/hosts file. It is a configurable option that can be used to inject custom host-to-IP mappings into the container's networking namespace. However, this feature is not supported on Pods that are using the hostNetwork mode.

HUBS

Gaia-X Hubs serve as national-level organizations that provide a platform for users to participate in the development of digital ecosystems. They facilitate collaboration among national initiatives, act as central contact points for interested parties, and promote the exchange of ideas and best practices with other regional Gaia-X Hubs in Europe and beyond. The Hubs also work towards international alignment by identifying regulatory challenges and defining requirements for a harmonized digital environment.

Human Capital Management

In an organization that supports human capital management (HCM), employees are viewed as assets with quantifiable value that can be increased using specific management techniques and HCM software tools.

Hypertext Transfer Protocol

To transfer data on the World Wide Web (WWW), the HTTP protocol is used. It is a simple protocol that defines a set of messages and responses (request/response) exchanged between a web client and web server during an HTML session. HTTP is described in RFC 2616 from 1999.

Hyprid OLAP

There are various techniques for storing multidimensional data structures, also known as OLAP cubes. These techniques include Multidimensional OLAP (MOLAP), Relational OLAP (ROLAP), and Hybrid OLAP (HOLAP). In the hybrid OLAP approach, HOLAP, data is stored partially in the database server and partially in the OLAP server.