SDD

SDD may refer to:

Computing

Software Design Description (IEEE 1016–2009), a standard that specifies the form of the document used to specify system architecture and application design in a software-related project
Software Design Document, a written outline of the development of a course or a description of a software product
Solution Deployment Descriptor, a proposed OASIS standard for software deployment, configuration and maintenance
Software Design and Development, an HSC subject in NSW that details the basics of designing and developing software applications
Syntax-Directed Definition - a context-free grammar with attributes and rules
Sentential Decision Diagram, a formalism in knowledge compilation and artificial intelligence

Finances

SDD, for SEPA Direct Debit, a payment system in the Single Euro Payments Area in Europe
SDD, ISO code for the Sudanese dinar, the currency of Sudan 1992–2007, now replaced by the Sudanese pound

Science

Sulfadimidine, an antibiotic whose abbreviations include SDD
Shared delusional disorder, a psychiatric syndrome
Silicon drift detector, a p-n junction-based detector for ionizing radiation, such as for X-rays
Seasonal deficit disorder, another name for seasonal affective disorder
Symmetric diagonally dominant matrix systems in mathematics
Selective decontamination of the digestive tract in medicine

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