SDO

SDO may stand for:

Science and Technology

• Scattered Disc Object, an object in the Solar System's Scattered disc.
• Standard Developing Organization, an organization with the scope of establishing national, regional or international engineering standards (e.g on telecommunications, information technology, power generation, quality)
• Social Dominance Orientation, a psychological personality variable.
• Service Data Objects, a computer technology that allows heterogeneous data to be accessed in a uniform way.
• Solar Dynamics Observatory, a NASA project to study the working of the sun.
• Selective Door Operation, the ability to electronically disable one or more set of doors on public transportation or office buildings.

Video Games

• Silent Death Online, a video game developed by Mythic Entertainment.
• Super dancer online, a Music Rhythm MMOG developed by 9you.

Other

• Hong Kong Stamp Duty Ordinance
• San Diego Opera, an opera company located in the city of San Diego, California

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