https://www.omgwiki.org/ddsf/ 2026-07-18T23:53:25-0400 https://www.omgwiki.org/ddsf/ https://www.omgwiki.org/ddsf/lib/tpl/dokuwiki/images/favicon.ico text/html 2021-07-14T16:37:29-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:dapp&rev=1626295049&do=diff Distributed Application (Dapp) Return to Glossary Distributed Application (DApp or DApp) is software that is executed or run on multiple computers within a network. These applications interact in order to achieve a specific goal or task. Traditional applications relied on a single system to run them. Even in the text/html 2021-07-14T16:15:17-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:data_centric&rev=1626293717&do=diff Data-Centric Return to Glossary A Data-Centric environment allows you to have a communication mechanism that is custom-tailored to your distributed application’s specific requirements. Distributed application developers can concentrate on the operation of their specific application—without worrying about how they are going to communicate with the other applications in the environment. text/html 2022-05-24T22:02:40-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:data_distribution_service_dds&rev=1653444160&do=diff Data Distribution Service (DDS) Return to Glossary DDS is a specification for publish-subscribe data-distribution systems. The purpose of the specification is to provide a common application-level interface that clearly defines the data distribution service. The specification describes the service using text/html 2021-07-14T16:37:29-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:data_reader&rev=1626295049&do=diff Data Reader Return to Glossary An entity attached to a Subscriber, used to subscribe to a Topic, providing type-safe operations to read/receive data. Each Data Reader can be associated to only one Topic and therefore exactly one data type. This Topic must be created before the Data Reader. A data reader can obtain its subscribed data via two approaches: text/html 2021-07-14T16:37:29-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:data_writer&rev=1626295049&do=diff Data Writer Return to Glossary An entity attached to a Publisher bound to publish samples from only one Topic and therefore exactly one data type, providing type-safe operations to write/send data. The Topic must be created before the Data Writer. Source: OpenSplice Glossary text/html 2021-07-14T16:37:29-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:dataintegrity&rev=1626295049&do=diff Data Integrity Return to Glossary See 2.2.4.2 Data Integrity Data Integrity is the overall completeness, accuracy and consistency of data. This can be indicated by the absence of alteration between two instances or between two updates of a data record, meaning data is intact and unchanged. Data integrity is usually imposed during the database design phase through the use of standard procedures and rules. Data integrity can be maintained through the use of various error-checking methods and text/html 2021-07-14T16:37:57-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:datalinklayer&rev=1626295077&do=diff Data Link Layer Return to Glossary The Data Link Layer is fifth layer in the Open Systems Interconnection (OSI) Model and is used for the encoding, decoding and logical organization of data bits. Data packets are framed and addressed by this layer, which has two sublayers. The Data Link Layer's first sublayer is the media access control (MAC) layer. It is used for source and destination addresses. The MAC layer allows the data link layer to provide the best data transmission vehicle and man… text/html 2021-07-14T16:37:29-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:datalog&rev=1626295049&do=diff Data Logging Return to Glossary Data Logging is the process of collecting and storing data over a period of time in order to analyze specific trends or record the data-based events/actions of a system, network or IT environment. It enables the tracking of all interactions through which data, files or applications are stored, accessed or modified on a text/html 2021-07-14T16:37:57-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:dataquality&rev=1626295077&do=diff Data Quality Return to Glossary Data Quality refers to the state of qualitative or quantitative pieces of information. There are many definitions of data quality, but data is generally considered high quality if it is “fit for [its] intended uses in operations, decision making and planning text/html 2021-07-14T16:17:55-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:datasecurity&rev=1626293875&do=diff Data Security Return to Glossary Data Security refers to the process of protecting data from unauthorized access and data corruption throughout its lifecycle. Data security includes data encryption, hashing, tokenization, and key management practices that protect data across all applications and platforms. text/html 2021-07-14T16:37:57-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:datastructure&rev=1626295077&do=diff Data Structure Return to Glossary Data Structure refers to methods of organizing units of data within larger data sets. Achieving and maintaining specific data structures help improve data access and value. Data structures also help programmers implement various programming tasks. text/html 2021-07-14T16:37:57-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:datatype&rev=1626295077&do=diff Datatype Return to Glossary The Datatype of a value (or variable in some contexts) is an attribute that tells what kind of data that value can have. Most often the term is used in connection with static typing of variables in programming languages like C/C++, Java and C# etc, where the type of a variable is known at compile time. Data types include the storage classifications like integers, floating point values, strings, characters etc. text/html 2021-07-14T16:48:52-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:dbms&rev=1626295732&do=diff DataBase Management System (DBMS) Return to Glossary A DataBase Management System (DBMS) is a software package designed to define, manipulate, retrieve and manage data in a database. A DBMS generally manipulates the data itself, the data format, field names, record structure and file structure. It also defines rules to validate and manipulate this data. text/html 2021-07-14T16:48:52-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:dcom&rev=1626295732&do=diff Distributed Component Object Model (DCOM) Return to Glossary Distributed Component Object Model (DCOM) is a proprietary Microsoft technology that allows Component Object Model (COM) software to communicate across a network. DCOM is enhanced with COM applications to facilitate Remote Procedure Call (RPC) and a Distributed Computing Environment (DCE) dedicated to Windows application and platform support. 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:d:dcps&rev=1626294031&do=diff Data-Centric Publish-Subscribe (DCPS) Return to Glossary Data-Centric Publish-Subscribe (DCPS) is the portion of the OMG: Data Distribution Service (DDS) Standard that addresses Data-Centric publish-subscribe communications. The Data Distribution Service (DDS) standard defines a language-independent model of publish-subscribe communications that has standardized mappings into various implementation languages. Connext DDS offers C, Traditional C++, Modern C++, C++/CLI, C#, and Java versions o… text/html 2021-07-14T16:19:54-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:ddr&rev=1626293994&do=diff Dynamic Disturbance Recording (DDR) Return to Glossary Dynamic Disturbance Recording (DDR) involves capturing incidents that represent behaviour of the power system during dynamic events, such as low frequency oscillations, abnormal under/over frequency, voltage excursions and system’s wide transients. text/html 2021-07-14T16:17:55-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:ddsapplication&rev=1626293875&do=diff DDS Application Return to Glossary DDS Application is a special Distributed Application (Dapp) that uses Data Distribution Service (DDS) publishers/subscribers to communicate. Source: Locally Defined text/html 2021-07-14T16:48:52-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:ddsnode&rev=1626295732&do=diff DDS Node Return to Glossary DDS Node is a participant in a DDS Domain. It is the collection of all the DDS Publishers and Subscribers that are participating in the Data Distribution Service (DDS) Network. Source: locally Defined DDS Node text/html 2021-07-14T16:48:52-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:ddssample&rev=1626295732&do=diff DDS Sample Return to Glossary A DDSSample is a combination of a Topic (distinguished by a Topic name), an instance (distinguished by a key), and the actual user data of a certain data type. Source: DDS Sample text/html 2021-07-14T16:37:58-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:deadline_qos&rev=1626295078&do=diff Deadline QoS Return to Glossary Significant parameter for periodic and aperiodic real-time critical communications. This represents the maximum separation between two topic updates. The Data Writer indicates that the application commits to write a new value at least once every deadline period. The text/html 2021-07-14T16:37:29-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:decouple&rev=1626295049&do=diff Decoupled Return to Glossary Decoupled, or decoupling, is a state of an IT environment in which two or more systems somehow work or are connected without being directly connected. It is a type of IT operational environment where systems, elements or components have none or very little knowledge about the other components. text/html 2021-07-14T16:37:29-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:deserial&rev=1626295049&do=diff Deserialization Return to Glossary Deserialization is the reverse of the Serialization process, taking data structured from some format, and rebuilding it into an object. A popular data formats for serializing data in ASCII is JSON or XML. The deserialization must be able to understand the serialization format. 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:d:dfars&rev=1626293766&do=diff Defense Federal Acquisition Regulation Supplement (DFARS) Return to Glossary Defense Federal Acquisition Regulation Supplement (DFARS) are supplements to the Federal Acquisition Regulation (FAR) and is administered by the Department of Defense. Source: Defense Federal Acquisition Regulation Supplement (DFARS) text/html 2021-07-14T16:48:52-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:discovery&rev=1626295732&do=diff Discovery Return to Glossary Discovery is a process by which Data Distribution Service (DDS) determines system entities. The mechanism by which this is done differs between DDSI and OpenSplice Native RT Networking. Either networking service has its own set of dependencies for this process to work correctly. Source: text/html 2021-07-14T16:49:03-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:distgrid&rev=1626295743&do=diff Distributed Microgrid Return to Glossary Distributed Microgrid has the efficiency of the Central Microgrid but also has redundant cables for power distribution. Each generator's load is balancedrequiring a more complicated control problem and requires a single manufacturer for all the components. text/html 2021-07-14T16:49:03-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:distsystem&rev=1626295743&do=diff Distributed System Return to Glossary A Distributed System (Distributed Computing and Distributed Database), in its most simplest definition is a group of computers communicating through messages working together to behave as a single computer to the end-user. These machines have a shared state, operate concurrently and can fail independently without affecting the whole system’s uptime. text/html 2021-07-14T16:49:03-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:dlod&rev=1626295743&do=diff Defence Line of Development (DLOD) Return to Glossary Defence Line of Development (DLOD) provides a way of view a programme, set of programmes or strategy from a specific perspective. In a sense it provides a means for the Ministry of Defence (MoD) - United Kingdom for matrix management of a programme or strategy. text/html 2021-07-14T16:15:17-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:dm&rev=1626293717&do=diff Data Model (DM) Return to Glossary A Data Model (DM) refers to the logical inter-relationships and data flow between different data elements involved in the information world. It also documents the way data is stored and retrieved. Data models facilitate communication business and technical development by accurately representing the requirements of the information system and by designing the responses needed for those requirements. Data models help represent what data is required and what fo… text/html 2021-07-14T16:49:03-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:dns&rev=1626295743&do=diff Domain Name Server (DNS) Return to Glossary A Domain Name Server (DNS) server stores a database of different domain names, network names, Internet hosts, DNS records and other related data. The most basic function of a DNS server is to translate a domain name into its respective 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:d:dod&rev=1626293766&do=diff Department of Defense (DoD) Return to Glossary The United States Department of Defense (DoD) is the department within the United States that provides the military forces needed to deter war, and to protect the security of the United States. Source: Department of Defense (DoD) text/html 2021-07-14T16:37:29-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:domain_dds&rev=1626295049&do=diff DDS Domain Return to Glossary A Domain is a communication context, which provides a virtual environment, encapsulating different concerns and thereby optimizing communications. Data Distribution Service (DDS) applications send and receive data within a domain, which provides a virtual communication environment for participants having the same domain text/html 2021-07-14T16:49:03-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:domain_deconflict&rev=1626295743&do=diff Domain Return to Glossary There are multiple meanings of the word Domain depending on context: DDS DomainDomain IntegrityDomain Knowledge text/html 2021-07-15T12:19:43-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:domain_knowledge&rev=1626365983&do=diff Domain Knowledge Return to Glossary Domain Knowledge is knowledge of a specific, specialized discipline or field, in contrast to general knowledge, or domain-independent knowledge. The term is often used in reference to a more general discipline, as, for example, in describing a software engineer who has general knowledge of programming, as well as domain knowledge about the pharmaceutical industry. People who have domain knowledge, are often considered specialists or experts in the field. text/html 2021-07-15T12:19:43-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:domain_participant&rev=1626365983&do=diff Domain Participant Return to Glossary A Domain Participant is an entity that represents a Data Distribution Service (DDS) application’s participation in a domain. It serves as factory, container, and manager for the DDS entities. Source: OpenSplice Glossary text/html 2021-07-15T12:19:43-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:domain_service&rev=1626365983&do=diff Domain Service Return to Glossary Responsible for creating and initialising the database which is used by the administration to manage the Data Distribution Service (DDS) data. Source: OpenSplice Glossary text/html 2021-07-15T12:19:43-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:domaininegrity&rev=1626365983&do=diff Domain Integrity Return to Glossary Domain Integrity is the collection of processes that ensure the accuracy of each piece of data in a domain. In this context, a domain is a set of acceptable values that a column is allowed to contain. It can include constraints and other measures that limit the format, type, and amount of data entered. text/html 2021-07-15T12:19:43-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:downtime&rev=1626365983&do=diff Downtime Return to Glossary Downtime (Td) is the Mission Duration times the sum of all of the different kinds of time required to transition from being down to the time to be fully operational divided by the Mean Time Between Failure. Mean Time To Repair (MTTR) is time required to restore operations the level defined in the system specification text/html 2021-07-15T12:19:48-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:dtls&rev=1626365988&do=diff Datagram Transport Layer Security (DTLS) Return to Glossary Datagram Transport Layer Security (DTLS) is a communications protocol designed to protect data privacy and preventing eavesdropping and tampering. It is based on the Transport layer security (TLS) protocol, which is a protocol that provides security to computer-based communications networks. The main difference between DTSL and TLS is that DTLS uses text/html 2021-07-15T12:19:48-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:durability&rev=1626365988&do=diff Durability Return to Glossary Responsible for maintaining historical data between services and providing historical data to late joining applications. Specifies if Samples should outlive their Data Writers for late joiners. The longer a sample lives the greater the overhead passed to the text/html 2021-07-21T09:21:57-0400 Anonymous (anonymous@undisclosed.example.com) https://www.omgwiki.org/ddsf/doku.php?id=ddsf:public:guidebook:06_append:glossary:d:start&rev=1626873717&do=diff Glossary D Terms Return to Glossary Note: You can add new terms beginning with 'D' here List of Words Return to Top * Data Distribution Service (DDS) * Data Integrity * Data Link Layer * Data Logging * Data Model (DM) * Data Quality * Data Reader * Data Security * Data Structure * Data Writer * Data-Centric * Data-Centric Publish-Subscribe (DCPS) * DataBase Management System (DBMS) * Datagram Transport Layer Security (DTLS) * Datatype * DDS Application * DDS Domain * DDS …