Also found in: Medical, Acronyms, Wikipedia.


Syntax Definition Formalism. A language for lexical and syntactic specification.

["The Syntax Definition Formalism SDF - Reference Manual", J. Heering et al, Centre for Math & CS, Amsterdam].

["Algebraic Specification", J.A. Bergstra et al eds, ACM Press 1989, Chap 6. To appear].


(Standard Data Format) A simple file format that uses fixed length fields. It is commonly used to transfer data between different programs.

 Pat Smith   5 E. 12 St.   Rye        NY
 Ed Jones    20 Main St.   New Hope   PA

In contrast to SDF, the comma separated values (CSV) format uses variable length fields.

 "Pat Smith","5 E. 12 St.","Rye","NY"
 "Ed Jones","20 Main St.","New Hope","PA"
References in periodicals archive ?
The SDF and the coalition targeted the attacking forces with air and artillery strikes after "20 to 30 artillery and tank rounds landed within 500 metres (yards) of the SDF headquarters location," the official said.
The SDF has put its forces on alert following the unrest.
Applications require only a drop of the liquid, allowing SDF to be economical and easy to use.
Shri Rajnath Singh said the SDF has been engaged in several philanthropic activities including care for the elderly and the weaker sections of society.
Previous studies on SDF have focused primarily on its clinical efficacy.
Naser Haj Mansour, a senior SDF official, told Reuters the SDF had taken a decision to confront Turkish forces "if they try to go beyond the known lines" in the areas near Aleppo where the sides exchanged fire on Wednesday.
The Ministry's Works Undersecretary, Ahmed Abdulaziz Al-Khayat, expressed deep pride for the existing cooperation with SDF to speed up the implementation of development projects in the kingdom, which, he said, embodies the strong brotherly relations between the leaderships and peoples.
But it actually was made against a backdrop of the Defense Ministry's increasing wariness of sending SDF members to the area out of security concerns in light of the significant restrictions on the use of weapons by SDF personnel.
1) reveals that the expected return is determined by the SDF model as:
The Cabinet of Prime Minister Junichiro Koizumi on Thursday endorsed a one-year extension of the SDF mission, which was due to expire Tuesday.
Acting as a syndicator, SDF has standardized its investment terms and documents, thereby, minimizing investor risks, reducing due diligence requirements and keeping closing costs very low.
Despite the ban on out-of-country combat, over the past four decades, Japan has upgraded its forces, professionalizing the SDF without abrogating its constitution.