Date format
A convention for representing dates and times. The value 2026-10-14T10:00:00+02:00 includes a date, time and UTC offset. RFC 3339 supports data exchange; a local display format may differ.
Definition and sourcesKNOWLEDGE / FROM A TO Z
Glossary
Technology, explained clearly. Find a term, choose a letter or narrow the topic. Definitions include sources and their review date.
Terms 6 / 685
Clear filtersDDoS (Distributed Denial of Service)
An attack using traffic from multiple sources to exhaust resources and disrupt legitimate access. Defence may require upstream filtering and distributed infrastructure. An application firewall alone cannot handle every kind of DDoS.
Definition and sourcesDigital accessibility
Designing services usable by people with different disabilities. It covers content, keyboard operation, assistive technology and understandability.
Definition and sourcesDolphin PHP
A name associated with BoonEx's Dolphin social-network platform. Older deployments require separate verification of support and update availability.
Definition and sourcesDropdown menu
A menu opened by activating a control. It needs a clear name, keyboard support and correct focus management; hover alone is insufficient.
Definition and sourcesDrupal
An open-source CMS with modules, content modelling and access control. Environment requirements and support schedules matter when choosing a version.
Definition and sources