https://www.omgwiki.org/ddsf/ 2026-07-19T15:55:09-0400 https://www.omgwiki.org/ddsf/ https://www.omgwiki.org/ddsf/lib/tpl/dokuwiki/images/favicon.ico text/html 2021-07-21T09:25:15-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:u:start&rev=1626873915&do=diff Glossary U Terms Return to Glossary Note: You can add new terms beginning with 'U' here List of Words Return to Top * Unicast * Unified Modeling Language (UML) * Union * Unique Identifier (UID) * United States Army Corps of Engineers (USACE) * Unmanned Aerial Vehicle (UAV) * Unmanned Ground Vehicle (UGV) * Unsupervised Learning * Use Case * User Datagram Protocol (UDP) * User Scenario * User Story Add a New Term Return to Top Create a Glossary entry stating with 'U' Word … text/html 2021-07-14T16:45:51-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:u:udp&rev=1626295551&do=diff User Datagram Protocol (UDP) Return to Glossary User Datagram Protocol (UDP) is part of the Internet Protocol suite used by programs running on different computers on a network. UDP is used to send short messages called datagrams but overall, it is an unreliable, connectionless protocol. text/html 2021-07-14T16:45:51-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:u:uml&rev=1626295551&do=diff Unified Modeling Language (UML) Return to Glossary Unified Modeling Language (UML) is the Object Management Group® (OMG) standard language for Analysis and Design of applications, specifying the structure and behavior of systems. UML is defined as an underlying abstract syntax and an overlying graphical concrete representation. text/html 2021-07-14T16:45:51-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:u:unicast&rev=1626295551&do=diff Unicast Return to Glossary Unicast is a common network model where packets are sent to a single network destination with a particular address. Source: Unicast text/html 2021-07-14T16:45:51-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:u:union&rev=1626295551&do=diff Union Return to Glossary A Union is like a data structure in that it generally has several fields, all of which are public by default. Unlike a struct, however, only one of the fields is used at any given time. In other words, it is a structure that allows the same storage space to be used to store values of different data types at different times. Thus it is necessary, and the programmer's responsibility, to keep track of what is actually stored in the union at any given time. text/html 2021-07-14T16:45:52-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:u:unique_identifier&rev=1626295552&do=diff Unique Identifier (UID) Return to Glossary Unique Identifier is an identifier that marks that particular record as unique from every other record. It allows the record to be referenced in the Summon Index without confusion or unintentional overwriting from other records. text/html 2021-07-14T16:46:08-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:u:unmanned_aerial_vehicles&rev=1626295568&do=diff Unmanned Aerial Vehicle (UAV) Return to Glossary * Welcome to DDS Foundation WIKI Unmanned Aerial Vehicles (UAV) is an aircraft without a human pilot on board and a type of unmanned vehicle. Source: Unmanned Aerial Vehicles text/html 2021-07-14T16:46:08-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:u:unmanned_ground_vehicle&rev=1626295568&do=diff Unmanned Ground Vehicle (UGV) Return to Glossary Unmanned Ground Vehicle (UGV) is a vehicle that operates while in contact with the ground and without an onboard human presence. UGVs can be used for many applications where it may be inconvenient, dangerous, or impossible to have a human operator present. text/html 2021-07-14T16:45:52-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:u:unsuperlearn&rev=1626295552&do=diff Unsupervised Learning Return to Glossary Unsupervised Learning is a method used to enable machines to classify both tangible and intangible objects without providing the machines any prior information about the objects. The things machines need to classify are varied, such as customer purchasing habits, behavioral patterns of bacteria and hacker attacks. The main idea behind unsupervised learning is to expose the machines to large volumes of varied data and allow it to learn and infer from t… text/html 2021-07-14T16:46:08-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:u:usace&rev=1626295568&do=diff United States Army Corps of Engineers (USACE) Return to Glossary The United States Army Corps of Engineers (USACE) is an engineer formation of the United States Army that primarily oversees dams, canals and flood protection in the United States, as well as a wide range of public works throughout the world.[2] USACE is a major Army command made up of some 37,000 civilian and military personnel,[3] making it one of the world's largest public engineering, design, and construction management age… text/html 2021-07-14T16:46:08-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:u:use_case&rev=1626295568&do=diff Use Case Return to Glossary What is a use case? A use case is a description of how a system responds to a request from an external source. This is written with reference to the technical steps that happen for the task to be completed. Why are use cases important? Use cases are important, because they will show how systems respond when they are used. A use case describes how a system helps a user achieve their text/html 2021-07-14T16:46:08-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:u:user_scenario&rev=1626295568&do=diff User Scenario Return to Glossary What is a user scenario? A user scenario is a narrative, which describes how a user might interact with a website or software application. In a user scenario, a specific task is specified and a narrative is written describing how a user might accomplish this task. A user scenario is different from a text/html 2021-07-14T16:45:52-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:u:userstory&rev=1626295552&do=diff User Story Return to Glossary A User Story is an informal, natural language description of one or more features of a software system. A user story is a tool used in Agile software development to capture a description of a software feature from an end-user perspective. A user story describes the type of user, what they want and why. A user story helps to create a simplified description of a