Keywords  S
 Level Category
 Words and Phrases
 SD K.4.1
 Safety, Human [Computers and Society]
 SD I.4.1
 Sampling [Image Processing]
 SD I.3.3
 Scanning, Digitizing and [Computer Graphics]
 SD I.4.1
 Scanning [Image Processing]
 *** I.4.8
 Scene Analysis [Image Processing]
 *** I.2.10
 Scene Understanding, Vision [Artificial Intelligence]
 SD H.4.1
 Schedules [Information Systems Applications]
 SD D.4.1
 Scheduling [Operating Systems]
 SD F.2.2
 Scheduling, Sequencing and [Nonnumerical Algorithms and Problems]
 SD H.2.1
 Schema and subschema [Database Management]
 SD C.2.5
 Schemes, Access [ComputerCommunication Networks]
 SD E.4
 Schemes, Nonsecret encoding
 SD F.3.3
 Schemes, Program and recursion
 SD K.3.2
 Science education, Computer
 *** K.3.2
 Science Education, Computer and Information
 SD I.2.1
 Science, Medicine and [Artificial Intelligence]
 SD D.2.8
 Science, Software [Metrics; Software Engineering]
 SD° J.2
 Sciences, Atmospheric [Computer Applications]
 SD J.2
 Sciences, Earth and atmospheric [Computer Applications]
 ** J.3
 Sciences, Life and Medical [Computer Applications]
 ** J.2
 Sciences, Physical, and Engineering [Computer Applications]
 ** J.4
 Sciences, Social and Behavioral [Computer Applications]
 SD H.5.2
 Screen design (e.g., text, graphics, color) [Information Interfaces and Presentation]
 SD I.2.4
 Scripts and Frames [Knowledge Representation Formalisms and Methods; Artificial Intelligence]
 *** H.3.3
 Search and Retrieval, Information
 *** I.2.8
 Search, Problem Solving, Control Methods, and [Artificial Intelligence]
 SD H.3.3
 Search process [Information Storage and Retrieval]
 SD I.2.8
 Search strategies, Graph and tree
 SD F.2.2
 Searching, Sorting and [Nonnumerical Algorithms and Problems]
 SD D.4.2
 Secondary storage devices
 SD K.5.1
 Secrets, Trade
 GT GT
 Security
 SD C.2.0
 Security and protection[ComputerCommunication Networks]
 *** K.6.5
 Security and Protection [Management of Computing and Information Systems]
 *** D.4.6
 Security and Protection [Operating Systems]
 SD H.2.0
 Security, integrity, and protection [Database Management]
 SD D.4.6
 Security kernels [Operating Systems]
 SD K.6.5
 Security, Physical [Management of Computing and Information Systems]
 SD K.6.m
 Security, Physical [retired January 1991]
 *** I.4.6
 Segmentation [Image Processing]
 SD D.4.2
 Segmentation [Storage Management; Operating Systems]
 SD K.6.2
 Selection, Computer
 SD I.5.2
 Selection, Feature evaluation and [Pattern Recognition]
 SD H.3.3
 Selection process [Information Storage and Retrieval]
 SD K.6.3
 Selection, Software
 SD H.3.4
 Selective dissemination of informationSDI [InformationStorage and Retrieval]
 SD K.3.2
 Selfassessment [Computers and Education]
 SD F.1.1
 Selfmodifying machines (e.g., neural networks) [Models of Computation]
 SD I.2.4
 Semantic networks [Knowledge Representation Formalisms and Methods]
 SD F.3.2
 Semantics, Algebraic approaches to
 SD F.3.2
 Semantics, Denotational
 *** F.3.2
 Semantics of Programming Languages
 SD F.3.2
 Semantics, Operational
 SD D.3.1
 Semantics [Programming Languages]
 SD D.4.4
 Sending, Message
 SD I.4.8
 Sensor fusion [Image Processing]
 SD I.2.9
 Sensors [Robotics; Artificial Intelligence]
 SD F.2.2
 Sequencing and scheduling [Nonnumerical Algorithms and Problems]
 SD B.6.1
 Sequential circuits [Logic Design; Hardware]
 *** D.1.4
 Sequential Programming
 SD B.3.2
 Sequentialaccess memory
 SD I.4.5
 Series expansion methods [Reconstruction; Image Processing]
 SD C.4
 Serviceability, Reliability, availability, and [Performance of Systems]
 *** H.3.5
 Services, Online Information
 SD C.0
 Set design, Instruction [Computer Systems Organization]
 SD I.5.1
 Set, Fuzzy [Pattern Recognition]
 SD B.1.5
 Set interpretation, Instruction [Control Structures and Microprogramming]
 SD B.1.5
 Sets, Firmware support of operating systems/instruction [Control Structures and Microprogramming]
 SD° F.4.3
 Sets, Recursive
 SD° F.4.3
 Sets, Regular
 SD I.3.7
 Shading [Computer Graphics]
 SD I.3.7
 Shadowing [Computer Graphics]
 SD I.4.7
 Shape and Size [Image Processing]
 SD I.2.10
 Shape [Artificial Intelligence]
 SD B.3.2
 Shared memory
 SD H.3.5
 Sharing, Data bank [Information Storage and Retrieval]
 SD I.4.3
 Sharpening and deblurring [Image Processing]
 SD I.5.4
 Signal processing [Applications; Pattern Recognition]
 SD C.3
 Signal processing systems [SpecialPurpose and ApplicationBased Systems]
 SD C.1.2
 SIMD (Singleinstructionstream, multipledatastreamprocessors)
 SD I.5.3
 Similarity measures [Pattern Recognition]
 SD I.1.1
 Simplification of expressions [Algebraic Manipulation]
 ** I.6
 Simulation and Modeling [Computing Methodologies]
 SD B.2.2
 Simulation [Arithmetic and Logic Structures]
 SD I.2.0
 Simulation, Cognitive
 SD° I.6.1
 Simulation, Continuous
 SD B.1.2
 Simulation [Control Structures and Microprogramming]
 SD B.6.3
 Simulation [Logic Design; Hardware]
 SD° I.6.1
 Simulation, Discrete
 SD B.4.4
 Simulation [Input/Output and Data Communications]
 SD B.7.2
 Simulation [Integrated Circuits]
 *** I.6.2
 Simulation Languages
 SD B.3.3
 Simulation [Memory Structures]
 SD D.4.8
 Simulation [Operating Systems]
 *** I.6.6
 Simulation Output Analysis
 SD B.5.2
 Simulation [RegisterTransferLevel Implementation]
 *** I.6.7
 Simulation Support Systems
 *** I.6.1
 Simulation Theory
 *** I.6.8
 Simulation, Types of
 SD° I.6.1
 Simulation, Types of (continuous and discrete)[retired January 1991]
 *** C.1.1
 Single Data Stream Architectures [Processor Architectures]
 SD G.1.7
 Single step methods [Numerical Analysis]
 SD C.1.1
 Singledatastream, Multipleinstructionstream processors (MISD) [Processor Architectures]
 SD C.1.1
 Singledatastream, Singleinstructionstream processors (SISD)[Processor Architectures]
 SD C.1.2
 Singleinstructionstream, multipledatastream processors (SIMD) [Processor Architectures]
 SD C.1.1
 Singleinstructionstream, singledatastream processors (SISD) [Processor Architectures]
 SD C.1.1
 SISD (Singleinstructionstream, singledatastream processors)
 SD I.4.7
 Size and shape [Image Processing]
 SD I.4.3
 Smoothing [Image Processing]
 SD G.1.1
 Smoothing [Interpolation]
 ** J.4
 Social and Behavioral Sciences [Computer Applications]
 *** K.4.2
 Social Issues
 ** K.4
 Society and Computers
 SD J.4
 Sociology [Computer Applications]
 * D
 Software
 SD D.2.9
 Software configuration management [Software Engineering]
 SD K.6.3
 Software development [Management of Computing and Information Systems]
 ** D.2
 Software Engineering
 SD D.2.2
 Software engineering, Computeraided
 SD K.2
 Software [History of Computing]
 SD I.4.0
 Software, Image processing
 SD K.6.5
 Software, Invasive [Management of Computing and Information Systems]
 SD D.4.6
 Software, Invasive [Operating Systems]
 SD D.2.2
 Software libraries
 SD K.6.3
 Software maintenance [Management of Computing and Information Systems]
 *** K.6.3
 Software Management [Management of Computing and Information Systems]
 ** G.4
 Software, Mathematical
 *** I.2.5
 Software, Programming Languages and [Artificial Intelligence]
 *** K.5.1
 Software Protection [Legal Aspects of Computing]
 SD D.m
 Software psychology
 SD D.2.9
 Software quality assurance (SQA) [Software Engineering]
 SD D.2.m
 Software, Reusable
 SD D.2.8
 Software science [Metrics; Software Engineering]
 SD K.6.3
 Software selection [Management of Computing and Information Systems]
 SD G.3
 Software, Statistical
 SD I.3.4
 Software support [Computer Graphics]
 *** H.3.4
 Software, Systems and [Information Storage and Retrieval]
 SD I.3.5
 Solid geometry, Constructive [Computer Graphics]
 SD° I.3.5
 Solid representations [Computer Graphics]
 SD F.2.2
 Sorting and searching [Nonnumerical Algorithms and Problems]
 SD E.5
 Sorting/searching [Data]
 SD G.1.3
 Sparse and very large systems
 SD I.5.5
 Special architectures [Pattern Recognition]
 SD K.4.2
 Special needs, handicapped persons
 SD D.3.2
 Specialized application languages
 SD I.1.3
 Specialpurpose algebraic systems [Algebraic Manipulation]
 ** C.3
 SpecialPurpose and ApplicationBased Systems
 SD I.1.3
 Specialpurpose hardware [Algebraic Manipulation]
 SD B.1.5
 Specialpurpose microcode applications
 SD° B.5.1
 Specialpurpose styles [RegisterTransferLevel Implementation]
 SD C.0
 Specification methodology, Systems
 SD F.3.1
 Specification techniques [Logics and Meanings of Programs]
 *** F.3.1
 Specifying and Verifying and Reasoning about Programs [Logics and Meanings of Programs]
 SD I.2.7
 Speech recognition and synthesis [Artificial Intelligence]
 SD I.7.1
 Spelling [Text Processing]
 SD G.1.2
 Spline and piecewise polynomial approximation
 SD G.1.1
 Spline and piecewise polynomial interpolation
 SD I.3.5
 Splines [Computer Graphics]
 SD H.4.1
 Spreadsheets [Information Systems Applications]
 SD K.8.1
 Spreadsheets [Personal Computing]
 SD D.2.9
 SQA (Software quality assurance) [Software Engineering]
 SD G.1.2
 Squares approximation, Least
 SD G.1.6
 Squares methods, Least
 SD G.1.0
 Stability (and instability) [Numerical Analysis]
 SD G.1.7
 Stability, Convergence and [Ordinary Differential Equations]
 SD C.1.3
 Stackoriented processors [Processor Architectures]
 SD K.6.1
 Staffing [Management of Computing and Information Systems]
 SD I.3.2
 Standalone systems [Computer Graphics]
 SD B.7.1
 Standard cells [Integrated Circuits]
 SD E.3
 Standard, Data encryption (DES)
 GT GT
 Standardization
 SD D.2.3
 Standards [Coding; Software Engineering]
 SD I.7.2
 Standards [Text Processing]
 SD I.3.6
 Standards [Computer Graphics]
 SD D.3.0
 Standards [Programming Languages]
 SD D.2.0
 Standards [Software Engineering]
 SD K.1
 Standards [The Computer Industry]
 SD G.3
 Statistical computing
 SD I.4.10
 Statistical [Image Processing]
 SD I.5.1
 Statistical [Pattern Recognition]
 SD G.3
 Statistical software
 SD J.2
 Statistics, Mathematics and [Computer Applications]
 ** G.3
 Statistics, Probability and
 SD K.1
 Statistics [The Computer Industry]
 SD G.1.7
 Step methods, Single
 SD I.4.8
 Stereo [Image Processing]
 SD G.1.7
 Stiff equations [Ordinary Differential Equations]
 SD D.4.8
 Stochastic analysis [Performance; Operating Systems]
 ** H.3
 Storage and Retrieval, Information
 SD I.3.1
 Storage devices [Computer Graphics]
 SD D.4.2
 Storage devices, Secondary [Operating Systems]
 SD D.4.2
 Storage hierarchies [Operating Systems]
 *** H.3.2
 Storage, Information
 SD D.3.3
 Storage management, Dynamic [Programming Languages]
 *** D.4.2
 Storage Management [Operating Systems]
 SD B.3.2
 Storage, Mass
 ** E.2
 Storage Representations, Data
 SD D.4.2
 Storage, Secondary [Operating Systems]
 SD C.2.1
 Store and forward networks
 SD B.1.1
 Store, Writable control
 SD D.4.2
 Strategies, Allocation/deallocation [Storage Management; Operating Systems]
 SD I.1.3
 Strategies, Evaluation [Algebraic Manipulation]
 SD I.2.8
 Strategies, Graph and tree search [Artificial Intelligence]
 SD H.5.2
 Strategies, Input devices and [Information Interfaces and Presentation]
 *** C.1.2
 Stream Architectures, Multiple Data
 *** C.1.1
 Stream Architectures, Single Data
 SD I.5.1
 Structural [Pattern Recognition]
 SD° E.5
 Structure [Files; Data]
 *** B.1.2
 Structure Performance Analysis and Design Aids, Control
 *** B.1.3
 Structure Reliability, Testing, and FaultTolerance,Control
 SD F.3.3
 Structure, Type [Studies of Program Constructs; Logics and Meanings of Programs]
 SD D.2.2
 Structured programming
 SD I.3.6
 Structures and data types, Graphics data
 ** B.1
 Structures and Microprogramming, Control
 SD I.2.10
 Structures, and transforms, Representations, data [Artificial Intelligence]
 SD I.2.10
 Structures, Architecture and control [Artificial Intelligence]
 ** B.2
 Structures, Arithmetic and Logic [Hardware]
 SD E.2
 Structures, Composite [Data Storage Representations]
 SD F.2.2
 Structures, Computations on discrete
 SD D.3.3
 Structures, Concurrent programming [Language Constructs]
 SD D.3.3
 Structures, Control [Language Constructs; Programming Languages]
 ** E.1
 Structures, Data [Data]
 SD D.3.3
 Structures, Data types and [Language Constructs; Programming Languages]
 SD° I.2.10
 Structures, Data [Vision and Scene Understanding; Artificial Intelligence]
 SD D.4.3
 Structures, Directory [Operating Systems]
 SD I.2.11
 Structures, Languages and [Artificial Intelligence]
 ** B.3
 Structures, Memory [Hardware]
 SD B.4.3
 Structures, Physical [Input/Output and Data Communications]
 SD C.4
 Studies, Design [Performance of Systems]
 *** F.3.3
 Studies of Program Constructs
 *** B.1.1
 Styles, Control Design [Control Structures and Microprogramming]
 *** B.2.1
 Styles, Design [Arithmetic and Logic Structures]
 *** B.6.1
 Styles, Design [Logic Design]
 *** B.3.2
 Styles, Design [Memory Structures]
 ***° B.7.1
 Styles, Design [Integrated Circuits]
 SD H.5.2
 Styles, Interaction [Information Interfaces and Presentation]
 *** C.1.3
 Styles, Other Architecture
 SD B.5.1
 Styles [RegisterTransferLevel Implementation]
 *** B.7.1
 Styles, Types and Design [Integrated Circuits]
 SD D.3.3
 Subroutines, Procedures, functions, and [Language Constructs]
 SD H.2.1
 Subschema, Schema and [Database Management]
 SD I.1.3
 Substitution mechanisms [Algebraic Manipulation]
 *** B.4.3
 Subsystems [Input/Output and Data Communications]
 SD I.4.5
 Summation methods [Reconstruction; Image Processing]
 SD C.5.1
 Super (very large) computers
 SD K.6.5
 Supererogation
 SD K.1
 Suppliers [The Computer Industry]
 SD H.4.2
 Support, Decision [Types of Systems; Information Systems Applications]
 SD B.1.5
 Support of operating systems/instruction sets, Firmware
 SD I.3.4
 Support, Software [Computer Graphics]
 *** I.6.7
 Support Systems, Simulation [Simulation and Modeling]
 SD I.3.5
 Surface representations [Computer Graphics]
 ** A.1
 Survey, Introductory and [General Literature]
 SD D.4.2
 Swapping [Storage Management; Operating Systems]
 SD° C.1.2
 Switch, Crossbar
 SD C.2.1
 Switching networks, Circuit
 SD B.6.3
 Switching theory [Logic Design; Hardware]
 SD D.2.5
 Symbolic execution [Testing and Debugging; Software Engineering]
 SD D.4.1
 Synchronization [Operating Systems]
 SD H.5.3
 Synchronous interaction [Information Interfaces and Presentation]
 SD° B.4.3
 Synchronous/Asynchronous operation[Input/Output and Data Communications]
 SD D.3.1
 Syntax [Programming Languages]
 SD B.1.2
 Synthesis, Automatic [Control Structures and Microprogramming]
 SD B.5.2
 Synthesis, Automatic [RegisterTransferLevel Implementation; Hardware]
 SD B.6.3
 Synthesis, Automatic [Logic Design]
 SD I.2.2
 Synthesis, Program [Automatic Programming; Artificial Intelligence]
 SD I.2.7
 Synthesis, Speech recognition and
 SD C.0
 System architectures
 ** C.5
 System Implementation, Computer
 *** K.6.4
 System Management [Management of Computing and Information Systems]
 SD I.2.5
 System tools and techniques, Expert [Artificial Intelligence]
 SD K.6.1
 Systems analysis and design [Management of Computing and Information Systems]
 SD D.3.4
 Systems and compiler generators, Translator writing [Programming Languages]
 *** H.1.1
 Systems and Information Theory
 *** H.3.4
 Systems and Software [Information Storage and Retrieval]
 **° C.3
 Systems, ApplicationBased
 *** I.2.1
 Systems, Applications and Expert
 ** H.4
 Systems Applications, Information
 SD D.4.7
 Systems, Batch processing [Operating Systems]
 * C
 Systems, Computer Systems Organization
 ** J.7
 Systems, Computers in Other
 SD H.3.4
 Systems, Current awareness [Information Storage and Retrieval]
 *** H.2.4
 Systems [Database Management]
 SD K.6.1
 Systems development [Management of Computing and Information Systems]
 *** C.2.4
 Systems, Distributed [ComputerCommunication Networks]
 SD H.2.4
 Systems, Distributed [Database Management]
 SD D.4.7
 Systems, Distributed [Operating Systems]
 SD D.4.3
 Systems, Distributed file
 SD K.3.2
 Systems education, Information
 *** D.4.3
 Systems, File Management
 SD H.1.1
 Systems, General Systems Theory
 SD I.3.5
 Systems, Geometric algorithms, languages, and [Computer Graphics]
 *** F.4.2
 Systems, Grammars and Other Rewriting
 *** I.3.2
 Systems, Graphics
 SD K.2
 Systems [History of Computing]
 SD C.1.m
 Systems, Hybrid
 * H
 Systems, Information
 **° H.4
 Systems, Information Systems Applications
 SD K.3.2
 Systems, Information Systems Education
 SD D.4.7
 Systems, Interactive [Operating Systems]
 SD I.5.5
 Systems, Interactive [Pattern Recognition]
 SD F.4.1
 Systems, Lambda calculus and related [Mathematical Logic and Formal Languages]
 *** I.1.3
 Systems, Languages and [Algebraic Manipulation]
 SD I.7.2
 Systems, Languages and [Text Processing]
 SD G.1.3
 Systems, Linear (direct and iterative methods)
 *** D.4.3
 Systems Management, File
 ** K.6
 Systems, Management of Computing and Information
 SD J.3
 Systems, Medical information [Computer Applications]
 *** H.5.1
 Systems, Multimedia Information
 SD C.2.4
 Systems, Network operating [ComputerCommunication Networks]
 SD G.1.5
 Systems of equations [Roots of Nonlinear Equations]
 ** D.4
 Systems, Operating
 * C
 Systems Organization, Computer
 SD I.3.4
 Systems, Paint [Computer Graphics]
 SD F.4.2
 Systems, Parallel rewriting
 ** C.4
 Systems, Performance of
 SD C.3
 Systems, Process control
 *** D.4.9
 Systems Programs and Utilities [Operating Systems]
 SD H.3.4
 Systems, Questionanswering (fact retrieval)
 SD C.3
 Systems, Realtime [SpecialPurpose and ApplicationBased Systems]
 SD D.4.7
 Systems, Realtime and embedded [Operating Systems]
 SD I.2.4
 Systems, Relation [Artificial Intelligence]
 SD I.3.2
 Systems, Remote [Computer Graphics]
 SD C.3
 Systems, Signal processing [SpecialPurpose and ApplicationBased Systems]
 *** I.6.7
 Systems, Simulation Support
 SD G.1.3
 Systems, Sparse and very large
 SD I.1.3
 Systems, Specialpurpose algebraic
 ** C.3
 Systems, SpecialPurpose and ApplicationBased
 SD C.0
 Systems specification methodology
 SD I.3.2
 Systems, Standalone [Computer Graphics]
 SD H.1.1
 Systems theory, General
 SD I.6.1
 Systems theory [Simulation and Modeling]
 SD F.4.2
 Systems, Thue
 *** H.4.2
 Systems, Types of [Information Systems Applications]
 SD H.5.2
 Systems, User interface management (UIMS)
 *** H.1.2
 Systems, User/Machine
 *** C.5.4
 Systems, VLSI [Computer System Implementation]
 SD H.5.2
 Systems, Windowing
