https://www.omgwiki.org/ddsf/ 2026-07-19T05:19:42-0400 https://www.omgwiki.org/ddsf/ https://www.omgwiki.org/ddsf/lib/tpl/dokuwiki/images/favicon.ico text/html 2021-07-14T16:45:05-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:safetycritical&rev=1626295505&do=diff Safety-Critical System (SCS) Return to Glossary A Safety-Critical System (SCS) or Life-Critical System is a system whose failure or malfunction may result in one (or more) of the following outcomes: death or serious injury to peopleloss or severe damage to equipment/property text/html 2021-07-14T16:45:05-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:sample&rev=1626295505&do=diff Sample Return to Glossary The data values associated with a Topic, passed between applications are known as DDS Samples. A sample represents an atom of data information as returned by a Data Reader’s read/take operations. It consists of two parts; SampleInfo and the Data itself. The Data part is the data as produced by the text/html 2021-07-14T16:16:21-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:scada&rev=1626293781&do=diff Supervisory Control and Data Acquisition (SCADA) Return to Glossary Supervisory Control and Data Acquisition (SCADA) refers to industrial control systems (ICS) that are employed to control and keep track of equipment or a plant in industries like water and waste control, telecommunications, energy, transport, and oil and gas refining. SCADA is a computer system used to gather and analyze real-time data. This data is processed by the computer and is presented on a regular basis. SCADA also sa… text/html 2021-07-14T16:20:04-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:scalable&rev=1626294004&do=diff Scalability Return to Glossary See 2.2.9 Scalability Scalability is an attribute that describes the ability of a process, network, software or organization to grow and manage increased demand. A system, business or software that is described as scalable has an advantage because it is more adaptable to the changing needs or demands of its users or clients. text/html 2021-07-14T16:45:05-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:scaleout&rev=1626295505&do=diff Scaling Out Return to Glossary Scaling Out takes the infrastructure you’ve got, and replicates it to work in parallel. This has the effect of increasing infrastructure capacity roughly linearly. Data centers often scale out using pods. Build a compute pod, spin up applications to use it, then scale out by building another pod to add capacity. Actual text/html 2021-07-14T16:45:05-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:scaleup&rev=1626295505&do=diff Scaling Up Return to Glossary Scaling Up is taking what you’ve got, and replacing it with something more powerful. From a networking perspective, this could be taking a 1GbE switch, and replacing it with a 10GbE switch. Same number of switchports, but the bandwidth has been scaled up via bigger pipes. The 1GbE bottleneck has been relieved by the 10GbE replacement. text/html 2021-07-14T16:45:22-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:sdo&rev=1626295522&do=diff Standards Developing Organization (SDO) Return to Glossary Welcome to DDS Foundation WIKI Standards Developing Organization (SDO), Standards Organization, Standards Body, or Standards Setting Organization (SSO) is an organization whose primary activities are developing, coordinating, promulgating, revising, amending, reissuing, interpreting, or otherwise producing technical standards[1] that are intended to address the needs of a group of affected adopters. text/html 2021-07-14T16:45:22-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:secure_sockets_layer&rev=1626295522&do=diff Secure Sockets Layer (SSL) Return to Glossary Secure Sockets Lsyer (SSL) is a standard protocol used for the secure transmission of documents over a network. Developed by Netscape, SSL technology creates a secure link between a Web server and browser to ensure private and integral data transmission. text/html 2021-07-14T16:45:22-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:securitymodel&rev=1626295522&do=diff Security Model Return to Glossary The Security Model for Data Distribution Service (DDS) defines the security principals (users of the system), the objects that are being secured, and the operations on the objects that are to be restricted. DDS applications share information on DDS Global Data Spaces (called text/html 2021-07-14T16:45:22-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:semantics&rev=1626295522&do=diff Semantics Return to Glossary Semantics differentiates the meaning of an instruction from its format. The format, which covers the spelling of language components and the rules controlling how components are combined, is called the language's syntax. For example, if you misspell a command, it is a syntax error. If, on the other hand, you enter a legal command that does not make any sense in the current context, it is a semantic error. text/html 2021-07-14T16:20:04-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:sensor&rev=1626294004&do=diff Sensor Return to Glossary A Sensor is a device that detects and responds to some type of input from the physical environment. The specific input could be light, heat, motion, moisture, pressure, or any one of a great number of other environmental phenomena. The output is generally a signal that is converted to human-readable display at the sensor location or transmitted electronically over a network for reading or further processing. text/html 2021-07-14T16:17:10-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:sensornet&rev=1626293830&do=diff Sensor Network Return to Glossary A Sensor Network refers to a group of spatially dispersed and dedicated sensors for monitoring and recording the physical conditions of the environment and organizing the collected data at a central location. WSNs measure environmental conditions like temperature, sound, pollution levels, humidity, wind, and so on. text/html 2021-07-14T16:45:05-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:sensornode&rev=1626295505&do=diff Sensor Node Return to Glossary A Sensor Node, also known as a mote (chiefly in North America), is a node in a sensor network that is capable of performing some processing, gathering sensory information and communicating with other connected nodes in the network. A mote is a node but a node is not always a mote. text/html 2021-07-14T16:45:05-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:sequence&rev=1626295505&do=diff Sequence Return to Glossary A Sequence is logically composed of three things: an array of elements, a maximum number of elements that the array may contain (i.e. its allocated size), and a logical length indicating how many of the allocated elements are valid. The length may vary dynamically between 0 and the maximum (inclusive); it is not permissible to access an element at an index greater than or equal to the length. text/html 2021-07-15T12:22:42-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:serialize&rev=1626366162&do=diff Serialization Return to Glossary Serialization is the process of turning some object into a data format that can be restored later. People often serialize objects in order to save them to storage, or to send as part of communications. The reverse process of serialization is called text/html 2021-07-15T12:22:42-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:server&rev=1626366162&do=diff Server Return to Glossary A Server is a computer, a device or a program that is dedicated to managing network resources. They are called that because they “serve” another computer, device, or program called “client” to which they provide functionality. There are a number of categories of servers, including print servers, file servers, network servers and database servers. In theory, whenever computers share resources with client machines they are considered servers. text/html 2021-07-14T16:20:31-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:service_plugin_interface&rev=1626294031&do=diff Service Plugin Interface (SPI) Return to Glossary Welcome to DDS Foundation WIKI Service Plugin Interface (SPI)-> This specification defines five SPIs that when combined together provide Information Assurance to Data Distribution Service (DDS) systems: Authentication Service Plugin. Provides the means to verify the identity of the application and/or user that invokes operations on DDS. Includes facilities to perform mutual text/html 2021-07-15T12:22:42-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:sessionlayer&rev=1626366162&do=diff Session Layer Return to Glossary The Session Layer is the fifth layer in the Open Systems Interconnection (OSI) Model, which controls the connections between multiple computers. The session layer tracks the dialogs between computers, which are also called sessions. This layer establishes, controls and ends the sessions between local and remote applications. text/html 2021-07-14T16:16:06-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:sgrid&rev=1626293766&do=diff Smart Grid Return to Glossary A Smart Grid is an electricity network based on digital technology that is used to supply electricity to consumers via two-way digital communication. This system allows for monitoring, analysis, control and communication within the supply chain to help improve efficiency, reduce energy consumption and cost, and maximize the transparency and reliability of the energy supply chain. The smart grid was introduced with the aim of overcoming the weaknesses of conventi… text/html 2021-07-15T12:22:42-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:shelfware&rev=1626366162&do=diff Shelfware Return to Glossary Shelfware is a term given to software or documentation that has been purchased but never used. Typically, software becomes shelfware when a user buys it on a whim because of a great discount or for future need but does not use or install that software. text/html 2021-07-15T12:22:42-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:shielding&rev=1626366162&do=diff Shielding Return to Glossary Shielding is when Ethernet cables or shield twisted pair (STP) cables have an outside layer or “shield” of conductive material around the internal conductors, which needs to be grounded to cancel the effect of ElectroMagnetic Interference (EMI). The conductive shield can reflect or conduct external interference away without affecting the signals of the internal conductor. Therefore, shielded Ethernet cables are usually used to protect signals from EMI over the le… text/html 2021-07-15T12:22:49-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:simcard&rev=1626366169&do=diff Subscriber Identity Module (SIM) Return to Glossary Subscriber Identity Module (SIM) or Subscriber Identification Module (SIM), widely known as a SIM card, is an integrated circuit that is intended to securely store the international mobile subscriber identity (IMSI) number and its related text/html 2021-07-15T12:22:50-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:smartcard&rev=1626366170&do=diff Smart Card Return to Glossary A Smart Card, Chip Card, or Integrated Circuit Card (ICC) is a physical electronic authorization device, used to control access to a resource. It is typically a plastic credit card-sized card with an embedded integrated circuit (IC) chip.[1] Many smart cards include a pattern of metal contacts to electrically connect to the internal chip. Others are contactless, and some are both. Smart cards can provide personal identification, text/html 2021-07-14T16:17:10-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:smartcity&rev=1626293830&do=diff Smart City Return to Glossary A Smart City is a framework, predominantly composed of Information and Communication Technologies (ICT), to develop, deploy, and promote sustainable development practices to address growing urbanization challenges. A big part of this ICT framework is essentially an intelligent network of connected objects and machines that transmit data using wireless technology and the cloud. text/html 2021-07-15T12:22:50-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:sourcecode&rev=1626366170&do=diff Source Code Return to Glossary Source Code is the set of instructions and statements written by a programmer using a computer programming language (i.e., C/C++, Java, JavaScrit, Python, Erlang, etc.). This code is later translated into machine language by a Compiler. The translated code is referred to as object code. text/html 2021-07-15T12:22:50-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:sparql&rev=1626366170&do=diff SPARQL Protocol And RDF Query Language (SPARQL) Return to Glossary SPARQL Protocol And RDF Query Language (SPARQL) is an acronym standing in for both the query language itself, and the [ddsf:private:cookbook:06_append:glossary:p:protocol|protocol]] through which operators use it. Human operators use SPARQL to make queries and retrieve information from data that is stored in a text/html 2021-07-14T16:45:05-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:special_interest_group&rev=1626295505&do=diff Special Interest Group (SIG) Return to Glossary Welcome to DDS Foundation WIKI Special Interest Group (SIG) is any association of individuals or organizations, usually formally organized, that, on the basis of one or more shared concerns, attempts to influence public policy in its favour. All interest groups share a desire to affect government policy to benefit themselves or their causes. text/html 2021-07-15T12:32:42-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:spot&rev=1626366762&do=diff Spot Generation Return to Glossary Spot Generation* describes a simple Microgrid power generation architecture used within DoD starting around World War II (WWII). It is simple to setup by setting up a generator outside of the structure such as a tent and running a cable from the generator into the structure to supply electricity. text/html 2021-07-14T16:45:05-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:sprint&rev=1626295505&do=diff Sprint Return to Glossary A Sprint is a short, time-boxed period when a scrum team works to complete a set amount of work. Sprints are at the very heart of scrum and agile methodologies, and getting sprints right will help your agile team ship better software with fewer headaches. text/html 2021-07-15T12:32:42-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:stanag&rev=1626366762&do=diff Standardization Agreement (STANAG) Return to Glossary Standardization Agreement (STANAG) [redundantly: STANAG agreement] defines processes, procedures, terms, and conditions for common military or technical procedures or equipment between the member countries of the alliance. Each text/html 2021-07-21T09:25:01-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:start&rev=1626873901&do=diff Glossary S Terms Return to Glossary Note: You can add new terms beginning with 'S' here List of Words Return to Top * Safety-Critical System (SCS) * Sample * Scalability * Scaling Out * Scaling Up * Secure Sockets Layer (SSL) * Security Model * Semantics * Sensor * Sensor Network * Sensor Node * Sequence * Serialization * Server * Service Plugin Interface (SPI) * Session Layer * Shelfware * Shielding * Smart Card * Smart City * Smart Grid * Software Adaptability * So… text/html 2021-07-15T12:32:42-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:stdorg&rev=1626366762&do=diff Standards Developing Organization (SDO) Return to Glossary Standards Developing Organization (SDO), Standards Organization, Standards Body, or Standards Setting Organization (SSO) is an organization whose primary activities are developing, coordinating, promulgating, revising, amending, reissuing, interpreting, or otherwise producing technical standards[1] that are intended to address the needs of a group of affected adopters. text/html 2021-07-15T12:32:42-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:storagedevice&rev=1626366762&do=diff Storage Device Return to Glossary Storage Device is any computing hardware that is used for storing, porting and extracting data files and objects. It can hold and store information both temporarily and permanently, and can be internal or external to a computer, server or any similar computing device. text/html 2021-07-15T12:32:42-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:structuredassurancecase&rev=1626366762&do=diff Structured Assurance Case Return to Glossary Structured Assurance Case is “a documented body of evidence that provides a convincing and valid argument that a specified set of critical claims regarding a system ’s properties are adequately justified for a given application in a given environment. text/html 2021-07-15T12:22:50-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:subclaim&rev=1626366170&do=diff Sub-Claim Return to Glossary Subclaim is a subordinate Claim Source: <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4548534/#b13-v115.n03.a05> text/html 2021-07-15T12:32:52-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:subscriber&rev=1626366772&do=diff Subscriber Return to Glossary An entity created by a Domain Participant to manage a group of Data Reader. In order to subscribe to a Topic the Subscriber must be in the same DDS Domain and Partition and have a compatible set of Quality of Service (QoS) Policies associated to it. Source: OpenSplice Glossary text/html 2021-07-14T16:17:10-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:superlevel&rev=1626293830&do=diff Supervisory Level Return to Glossary Supervisory Level is the Supervisory Control and Data Acquisition (SCADA) is combines the Field and Control Levels to provide oversight from a single location. This is usually accomplished using Graphical User Interface, or Human-machine interface (HMI), to remotely control operations. For example, water plants often employ this technology to control remote water pumps. text/html 2021-07-15T12:32:52-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:supervislearning&rev=1626366772&do=diff Supervised Learning Return to Glossary Supervised Learning is a method used to enable machines to classify objects, problems or situations based on related data fed into the machines. Machines are fed with data such as characteristics, patterns, dimensions, color and height of objects, people or situations repetitively until the machines are able to perform accurate classifications. Supervised Learning is a popular technology or concept that is applied to real-life scenarios. Supervised lear… text/html 2021-07-14T16:45:05-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:swadapt&rev=1626295505&do=diff Software Adaptability Return to Glossary Software Adaptability is when software components with a well-defined, stable Application Programming Interface (API) can be exchanged using another components with minimal effort as long as the component adheres to the API. For example, SQL describes an API for a database component. As long as the software adheres to the standard SQL text/html 2021-07-15T12:22:50-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:switch&rev=1626366170&do=diff Switch Return to Glossary A Switch generally has a more intelligent role than a Hub. A switch is a multiport device that improves network efficiency. The switch maintains limited routing information about nodes in the internal network, and it allows connections to systems like hubs or routers. Strands of LANs are usually connected using switches. Generally, switches can read the hardware addresses of incoming packets to transmit them to the appropriate destination. text/html 2021-07-15T12:32:42-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:swlib&rev=1626366762&do=diff Software Library Return to Glossary A Software Library is a suite of data and programming code that is used to develop software programs and applications. It is designed to assist both the programmer and the programming language Compiler in building and executing software. text/html 2021-07-15T12:22:43-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:syntax&rev=1626366163&do=diff Syntax Return to Glossary Syntax refers to the rules that specify the correct combined sequence of symbols that can be used to form a correctly structured program using a given programming language. Programmers communicate with computers through the correctly structured syntax, semantics and grammar of a programming language. text/html 2021-07-15T12:22:43-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:s:syslifecycle&rev=1626366163&do=diff System Lifecycle Return to Glossary The System Lifecycle in systems engineering is a view of a system or proposed system that addresses all phases of its existence to include system conception, design and development, production and/or construction, distribution, operation, maintenance and support, retirement, phase-out and disposal.