SDI may refer to:

Arts and entertainment

* ''SDI'' (arcade game), 1987, by Sega * ''S.D.I.'' (video game), 1986, by Cinemaware

Companies and organizations

Samsung SDI Samsung SDI Co., Ltd. () is a battery and electronic materials manufacturer headquartered in Yongin, Gyeonggi-do, South Korea. Samsung SDI operates its business with Energy Solutions and Electronic Materials segment. The Energy Solution segment ma ...

, battery manufacturer *

Scottish Development International Scottish Development International (SDI) is the international arm of the Scottish Government and Scotland's enterprise agencies, Scottish Enterprise, Highlands and Islands Enterprise and South of Scotland Enterprise. The agency supports internati ...

Scuba Diving International Scuba Diving International (SDI) is a Scuba training and certification agency. It is the recreational arm of Technical Diving International, a technical diver training organization. SDI is a member of the United States RSTC, the RSTC Canada a ...

SDI Media Group SDI Media Group, Inc. is a major provider of subtitling, translation, and language dubbing services to the entertainment industry. The headquarters are located in the Westchester district of Los Angeles, California with other offices and facil ...

, providing subtitling and language services * SDI Presence, US IT consultancy *

SDI Technologies SDI Technologies is an American Rahway, New Jersey-based consumer electronics manufacturer whose products are marketed under several national brands, including Timex, eKids, KIDdesigns, and iHome. SDI used to market under Soundesign, a now-defunct ...

, a consumer electronics manufacturer, New Jersey, U.S.A. * Service Desk Institute, for computer help desk staff *

Slum Dwellers International Slum/Shack Dwellers International (SDI), is a global social movement of the urban poor that started in 1996. It forms a network of community-based organisations in more than 30 countries across Africa, Asia, Latin America and the Caribbean. The S ...

* (Italian Democratic Socialists), a political party * Software Design Inc. * Spiritual Directors International, supporting spiritual direction * Steel Dynamics, Inc., a steel producer, Indiana, US.A.

In science and technology

Computing and telecommunications

* Serial data input in the

Serial Peripheral Interface The Serial Peripheral Interface (SPI) is a synchronous serial communication interface specification used for short-distance communication, primarily in embedded systems. The interface was developed by Motorola in the mid-1980s and has become a ...

bus * Serial digital interface for sending video signals over coaxial cable *

Single document interface A multiple-document interface (MDI) is a graphical user interface in which multiple windows reside under a single parent window. Such systems often allow child windows to embed other windows inside them as well, creating complex nested hierarchies ...

, a style of graphical user interface *

Software-defined infrastructure Software-defined infrastructure (SDI) is the definition of technical computing infrastructure entirely under the control of software with no operator or human intervention. It operates independent of any hardware-specific dependencies and is progr ...

, with no human intervention * Spatial data infrastructure * Standard Disk Interconnect, a DEC standard * Statistical Design Institute's SDI Tools for Microsoft Excel * System Deployment Image, a Microsoft disk image file format

Medicine

Sulfadimidine Sulfadimidine or sulfamethazine is a sulfonamide (medicine), sulfonamide antibacterial. There are non-standardized abbreviations for it as "sulfadimidine" (abbreviated SDI and more commonly but less reliably SDD) and as "sulfamethazine" (abbrevia ...

, an antibiotic

Other uses in science and technology

Selective dissemination of information Selective dissemination of information ("SDI") was originally a phrase related to library and information science. SDI refers to tools and resources used to keep a user informed of new resources on specified topics, including the current-awareness ...

* Silt density index in reverse osmosis systems *

Smoke-developed index Smoke-developed index (abbreviated SDI) is a measure of the concentration of smoke a material emits as it burns. Like the Flame Spread Index, it is based on an arbitrary scale in which asbestos-cement board has a value of 0, and red oak wood has 10 ...

, the concentration of smoke emitted by a material * Spiral Dynamics Integral, a model of evolutionary development *

Stand density index Stand density index (SDI; also known as Reineke's Stand Density Index after its founder) is a measure of the stocking of a stand of trees based on the number of trees per unit area and diameter at breast height (DBH) of the tree of average basal are ...

, of the stocking of a stand of trees * Subsurface drip irrigation *

Suction Diesel Injection The SDI engine is a design of naturally aspirated (NA) direct injection diesel engine developed and produced by Volkswagen Group for use in cars and vans, along with marine engine (Volkswagen Marine) and Volkswagen Industrial Motor applications. ...

, a Volkswagen diesel engine

Other uses

Saidor Airport Saidor Airport is an airport in Madang Province, Papua New Guinea. . It is a general aviation airport located at the coast near Saidor, near Saul Point with Dekys Bay to the east and the Bismarck Sea to the north. History A pre-World War II airf ...

(IATA code), in Madang Province, Papua New Guinea * Socio Demographic Index of the

Global Burden of Disease Study The Global Burden of Disease Study (GBD) is a comprehensive regional and global research program of disease burden that assesses mortality and disability from major diseases, injuries, and risk factors. GBD is a collaboration of over 3600 researche ...

State Disability Insurance California State Disability Insurance (SDI or CASDI) is a statutory (state-regulated and state-audited) state disability program of the State of California for short-term disability income replacement. The program has been in effect since 1946. Cos ...

of California, US *

Strategic Defense Initiative The Strategic Defense Initiative (SDI), derisively nicknamed the "''Star Wars'' program", was a proposed missile defense system intended to protect the United States from attack by ballistic strategic nuclear weapons (intercontinental ballistic ...

, US anti-missile project {{disambiguation