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Graphical representation of [[Black box]] structure
Block Definition Diagrams (BDD) are a structural representation of blocks, interfaces, and relationships. The BDD represents the structure of the System
Block_definition_diagram
General-purpose modeling language
of diagram, some of which are taken from UML. Activity diagram Block definition diagram Internal block diagram Package diagram Parametric diagram Requirement
Systems_modeling_language
Diagram that describes the static structure of a software system
methods), and the relationships among objects. The class diagram is the main building block of object-oriented modeling. It is used for general conceptual
Class_diagram
in this diagram. On the system level, basic properties of an electronic system are determined. For the behavioural description, block diagrams are used
Gajski–Kuhn_chart
Chart of the interactions in a system
Reference by Harris (1999) gives two separate definitions: Flow chart or flow diagram... is a diagram that visually displays interrelated information
Flow_diagram
Modelling language and methodology for capturing knowledge and designing systems
generated use case diagram (b). The second type of diagram is the block definition diagram (BDD) which defines features of blocks (like properties and
Object_Process_Methodology
Function modeling methodology for describing manufacturing functions
customer through simplified graphical devices". Where the Functional flow block diagram is used to show the functional flow of a product, IDEF0 is used to show
IDEF0
Specialized computer language used to describe electronic circuits
interactive graphic sister language ABL, whose name was an initialism for "a block diagram language". ABL was implemented in the early 1980s by the Centro Studi
Hardware_description_language
Representation on functions in computer engineering
functional block diagram is a block diagram, that describes the functions and interrelationships of a system. The functional block diagram can picture:
Function_model
Audio programming language
and FAUST's block diagram composition operators, used to combine signal processors together, as third order functions, etc. Block diagrams, even if purely
FAUST_(programming_language)
Diagram in systems analysis
The N2 chart or N2 diagram (pronounced "en-two" or "en-squared") is a chart or diagram in the shape of a matrix, representing functional or physical interfaces
N2_chart
Graphical method to simplify Boolean expressions
A Karnaugh map (KM or K-map) is a diagram that can be used to simplify a Boolean algebra expression. Maurice Karnaugh introduced the technique in 1953
Karnaugh_map
Any of a set of standard configurations of Redundant Arrays of Independent Disks
filled with 0-bytes. In diagram 1, a read request for block A1 would be serviced by disk 0. A simultaneous read request for block B1 would have to wait
Standard_RAID_levels
Approach to knot theory by John Conway
diagrams in knot or link diagrams and can be used as building blocks for link diagrams, e.g. pretzel links. A rational tangle is a 2-tangle that is homeomorphic
Tangle_(mathematics)
Wheel to support movement and change of direction of a taut cable
the rope that support the moving block. In the diagram on the right, the ideal mechanical advantage of each of the block-and-tackle assemblies shown is
Pulley
Change in matter of constant composition, usually involving other such matters
illustrated generally as block flow diagrams, or in more detail as process flow diagrams. Block flow diagrams show the units as blocks and the streams flowing
Chemical_process
Economic classification systems used for minerals
generates a Voronoi diagram composed of polygons each with a unique grade; in three dimensions this method generates a Voronoi diagram composed of polyhedra
Mineral resource classification
Mineral_resource_classification
Type of data modeling language
Relationship definitions Entity-level diagrams. Entity relationship matrix Entity level diagram Entity level diagram example Reference diagram Phase three
IDEF1X
Map type
buildings and also akin to a block pattern diagram that records public and private property as simple rectangular blocks. The earliest advocates of its
Figure-ground_diagram
Chess opening trap
pawns, weakening their position in the endgame. 5. 0-0 Bg4 6. h3 h5! (diagram) Black pins the knight to the queen by playing 5...Bg4. White tries to
Fishing_Pole_Trap
Statistical tool used in project management
item of analysis in carrying out basic PERT/CPM." In a PERT diagram, the main building block is the event, with connections to its known predecessor events
Program evaluation and review technique
Program_evaluation_and_review_technique
Fundamental building block of control systems
block in a computerised control system such as a distributed control system or a programmable logic controller. In all cases, a control loop diagram is
Control_loop
Chess tactic
interference as a tactic involving blocking moves that obstruct lines of attack. This definition may be expanded by including blocking moves that disrupt lines
Interference_(chess)
Reactive Blocks is a visual model-driven development environment based on Activity Diagrams supporting formal model analysis, automated code generation
Reactive_Blocks
Type of cipher
In cryptography, a block cipher is a deterministic algorithm that operates on fixed-length groups of bits, called blocks. Block ciphers are the elementary
Block_cipher
Family of error-correcting codes that encode data in blocks
which have a wide range of practical applications. The abstract definition of block codes is conceptually useful because it allows coding theorists,
Block_code
Use of conceptual models
function modeling, with specific techniques such as the Functional Flow Block Diagram and IDEF0. These models can be extended using functional decomposition
Systems_modeling
Activity of representing processes of an enterprise
processes, such as the flow chart, functional flow block diagram, control flow diagram, Gantt chart, PERT diagram, and IDEF have emerged since the beginning of
Business_process_modeling
Algebraic manipulation of "true" and "false"
representation of Boolean functions known as (reduced ordered) binary decision diagrams (BDD) for logic synthesis and formal verification. Logic sentences that
Boolean_algebra
Metalanguage based on Backus–Naur Form (BNF)
the definition would be %d97.66.99. A string can also be explicitly specified as case-insensitive with a %i prefix. A further type of building-block value
Augmented_Backus–Naur_form
Graphical representation of a computer program or algorithm
at the exit block, over the blocks from which the exit block is reachable. The standard definition of dominance includes unreachable blocks, and the standard
Control-flow_graph
Algorithm for caching data
make a replacement decision. In the diagram, X indicates that a block is accessed at a particular time. If block A1 is accessed at time 1, its recency
Cache_replacement_policies
Relationship between elements of two sets
codomain of definition of R {\displaystyle R} is equal to Y {\displaystyle Y} . For example, the green and blue binary relations in the diagram are surjective
Binary_relation
or behavioral modeling. Further higher abstractions like SystemC or block diagram based modeling are also used depending on the system requirements. Modeling
Design_space_exploration
Highway in Florida
County Block Map (2010 Census): Miami-Dade County, FL (PDF) (Map). U.S. Census Bureau. Index Sheet. Retrieved May 17, 2013. CTS. "Straight Line Diagram of
Florida_State_Road_826
Mathematical concept
d_{h}\circ d_{v}=d_{v}\circ d_{h}} Hence a double complex is a commutative diagram of the form ⋮ ⋮ ↑ ↑ ⋯ → C p , q + 1 → C p + 1 , q + 1 → ⋯ ↑ ↑ ⋯ → C p
Double_complex
Test and measurement instrument
(analog) AC and DC coupling Additionally, the generator will allow for the definition of a precise frequency range and amplitude of the stimulus presented to
Audio_analyzer
Process where information about current status is used to influence future status
feedback is called negative feedback. As an example of negative feedback, the diagram might represent a cruise control system in a car that matches a target
Feedback
Extensibility mechanism in the Unified Modeling Language
image may even replace the entire UML symbol. For instance, in a class diagram stereotypes can be used to classify method behavior, e.g. with «constructor»
Stereotype_(UML)
Algebraic structure
with a basis of set-partition diagrams and multiplication given by diagram concatenation. Its subalgebras include diagram algebras such as the Brauer algebra
Partition_algebra
Graphical language for quantum processes
maps between qubits, which are represented as string diagrams called ZX-diagrams. A ZX-diagram consists of a set of generators called spiders that represent
ZX-calculus
Text in computer source code that is generally ignored by a compiler/interpreter
ISBN 978-1-397-80521-8. Function definition with docstring in Clojure Murach. C# 2005. p. 56. "CodePlotter 1.6 – Add and edit diagrams in your code with this 'Visio-like'
Comment (computer programming)
Comment_(computer_programming)
Class derives part of its definition from an existing more general Class Initial node - the start point of an Activity diagram Initial pseudostate - points
Glossary of Unified Modeling Language terms
Glossary_of_Unified_Modeling_Language_terms
Connected non-abelian Lie group lacking nontrivial connected normal subgroups
Killing-Cartan classification. Unfortunately, there is no universally accepted definition of a simple Lie group. In particular, it is not always defined as a Lie
Simple_Lie_group
simultaneously allowing the introduction of drilling fluid into the drill string. See Drilling rig (petroleum) for a diagram of a drilling rig. v t e
Swivel_(drill_rig)
IDEF5 (Integrated Definition for Ontology Description Capture Method) is a software engineering method to develop and maintain usable, accurate domain
IDEF5
integrity test; notably Error Location Analysis and statistically deep eye-diagramming integrated with BERT measurement called BERTScope. The company was the
SyntheSys_Research
Type of chart to show a project schedule
technique (PERT) Progress bar Event chain diagram Project Management Institute 2021, Glossary §3 Definitions. Gantt 1910. Morris 1997, p. 7. Klein 1999
Gantt_chart
Special functions used to build correlation functions in 2D CFTs
leads to combinatorial expressions for conformal blocks as sums over Young diagrams. Each diagram can be interpreted as a state in a representation of
Virasoro_conformal_block
Interdisciplinary field of engineering
Functional flow block diagram (FFBD) Model-based design Data flow diagram (DFD) N2 chart IDEF0 diagram Use case diagram Sequence diagram Block diagram Signal-flow
Systems_engineering
Systems modelling software
plugin supports all SysML diagrams including Requirements, Block Definition, Internal Blocks, Parametric and other diagrams. Validation constraints actively
MagicDraw
Conceptual model in philosophy of science
X and Y must be blocked by this set; (2) without disrupting any causal paths; and (3) without creating any spurious paths. Definition: a backdoor path
Causal_model
Signal format for standard-definition video
and super video) is an analog video signal format that carries standard-definition video, typically at 525 or 625-line resolution. It encodes video luma
S-Video
Type of tonsil
Library of Medicine. 13 September 2022. Retrieved 23 July 2023. "Anatomy diagram: 25420.000-1". Roche Lexicon—Illustrated Navigator. Elsevier. Archived
Adenoid
Chess piece
directly in front not only blocks the advance of that pawn but also cannot be driven away by other pawns. In the diagram, Black has an isolated pawn
Pawn_(chess)
Natural physical entity in space
diagram (H–R diagram)—a plot of absolute stellar luminosity versus surface temperature. Each star follows an evolutionary track across this diagram.
Astronomical_object
Technique for wavelet analysis
Block diagram of the (forward) lifting scheme transform
Lifting_scheme
Digital electronic circuit
Semiconductor. August 1973. p. 4-4. Abdelhadi, Ameer M. S. (2016). Architecture of block-RAM-based massively parallel memory structures : multi-ported memories and
Priority_encoder
Fracture or discontinuity in displaced rock
further faults and blocks which fill in the gap. If faults form, imbrication fans or domino faulting may form. Cross-section diagram of a listric fault
Fault_(geology)
Mathematical proof expressed visually
mathematical statement which can be demonstrated as self-evident by a diagram without any accompanying explanatory text. Such proofs can be considered
Proof_without_words
Position relative to wind direction: upwind and downwind respectively
windward side of a mountain tends to be wetter than the leeward side it blocks. The drier leeward area is said to be in a rain shadow. The term "windward"
Windward_and_leeward
Mathematical ways to group elements of a set
lattice of a 4-element set has 15 elements and is depicted in the Hasse diagram on the left. The meet and join of partitions α and ρ are defined as follows
Partition_of_a_set
Measure of the size of an atom
physical entity, there are various non-equivalent definitions of atomic radius. Five widely used definitions of atomic radius are covalent radius, Van der
Atomic_radius
Construct in computational geometry
"Finding the constrained Delaunay triangulation and constrained Voronoi diagram of a simple polygon in linear time", SIAM Journal on Computing, 28 (2):
Constrained Delaunay triangulation
Constrained_Delaunay_triangulation
Algorithm for modelling sequential data
matrix multiplications in blocks, such that each block fits within the cache of a GPU, and by careful management of the blocks it minimizes data copying
Transformer_(deep_learning)
Raised fault block bounded by normal faults
In physical geography and geology, a horst is a raised fault block bounded by normal faults. Horsts are typically found together with grabens. While a
Horst_(geology)
Physical system satisfying the superposition principle
y 2 ( t ) {\displaystyle y_{2}(t)} .) This definition of a linear system is analogous to the definition of a linear differential equation in calculus
Linear_system
Series of chemical elements
This corresponds exactly to the d-block elements, and many scientists use this definition. In actual practice, the f-block lanthanide and actinide series
Transition_metal
Continental crustal block in China, Inner Mongolia, the Yellow Sea, and North Korea
The North China Craton is a continental crustal block with one of Earth's most complete and complex records of igneous, sedimentary and metamorphic processes
North_China_Craton
Digital audiovisual data interface
HDMI (High-Definition Multimedia Interface) is a brand of proprietary digital interface used to transmit high-quality video and audio signals between devices
HDMI
Tract or parcel of land that is owned
or quadrant methods, or referring to a lot number and block number in a recorded plat diagram. Deeds often mention that appurtenances to the lot are
Land_lot
Systematic technique for failure analysis
Severity category definitions Next, the systems and subsystems are depicted in functional block diagrams. Reliability block diagrams or fault trees are
Failure mode, effects, and criticality analysis
Failure_mode,_effects,_and_criticality_analysis
Clock that monitors the resonant frequency of atoms
electromagnetic radiation. This phenomenon serves as the basis for the SI definition of the second: The second, symbol s, is the SI unit of time. It is defined
Atomic_clock
Data-flow programming paradigm
(CSP) Concurrent computing Dataflow Data-flow diagram Dataflow programming IEC 61131: Function Block Diagram (FBD) – a programming language in the IEC 61131
Flow-based_programming
Abstract strategy board game
piece moves two. A piece may not jump over an enemy piece. Thus in the diagram below, White cannot play a6-d6, even though there are three pieces in row
Lines_of_Action
Polymer derived from more than one species of monomer
IUPAC definition block copolymer: A copolymer that is a block polymer. In the constituent macromolecules of a block copolymer, adjacent blocks are constitutionally
Copolymer
Type of filter in signal processing
the structure of a tapped delay line that in many implementations or block diagrams provides the delayed inputs to the multiplication operations. One may
Finite_impulse_response
This glossary of computer science is a list of definitions of terms and concepts used in computer science, its sub-disciplines, and related fields, including
Glossary_of_computer_science
Something that has mass and volume
charged electrons. This definition goes beyond atoms and molecules, however, to include substances made from these building blocks that are not simply atoms
Matter
Technical communication document
owner's manual to include detailed repair information, such as a circuit diagram; however as products became more complex this information was gradually
User_guide
Engineering methodology
SADT is a structured analysis modelling language, which uses two types of diagrams: activity models and data models. It was developed in the late 1960s by
Structured analysis and design technique
Structured_analysis_and_design_technique
Luxury car with division driven by a chauffeur
brougham, described as "a limousine with no roof over the driver's seat." Diagram showing an exposed driver's seat 1915 Winton Six Limousine; note the open
Limousine
Form of distortion affecting communication reliability
sampling time, defines the margin over noise. The eye diagram of a binary PSK system The eye diagram of the same system with multipath effects added An eye
Intersymbol_interference
Software category
code and then used as building blocks in workflow diagrams after they are compiled. One limitation of certain purely diagram-based techniques, such as BPMN
Workflow_application
Control concept
including amplifiers and control systems. The figure shows a simplified block diagram of a negative feedback amplifier. The feedback sets the overall (closed-loop)
Negative_feedback
Software engineering method
structured analysis is a set of related graphical diagrams, process descriptions, and data definitions. They describe the transformations that need to take
Structured_analysis
Set of rules describing computer system
elements (e.g., gates, multiplexers, latches) as well as of some larger blocks (ALUs, caches etc.) that may be implemented at the logic-gate level, or
Computer_architecture
Model to describe distributed systems
contain at least one token. Like industry standards such as UML activity diagrams, Business Process Model and Notation, and event-driven process chains,
Petri_net
Mathematical model of computation
state machine can also be represented by a directed graph called a state diagram (above). Each state is represented by a node (circle). Edges (arrows) show
Finite-state_machine
Short, pointed hand-to-hand weapon
Weapons: An International Encyclopedia from 5000 B.C. to 2000 A.D., The Diagram Visual Group, New York: St. Martin's Press/Macmillan, ISBN 0-312-03950-6
Dagger
Measurement of the actual versus predicted uptime of a system
replacement parts and software. This data is applied to the reliability block diagram to evaluate individual availability reduction contributions using the
Operational_availability
Connection point in electronic circuits
especially in older documents, it is sometimes called a pole. On circuit diagrams, terminals for external connections are denoted by empty circles. They
Electric_terminal
Strategic management template
product § Business Model Canvas Nine windows – systems-engineering matrix diagram with nine boxes Product/market fit Unique selling proposition Osterwalder
Business_model_canvas
Type of window covering
position, with slats spaced out, to a closed position where slats overlap and block out most of the light. There are also several types of window coverings
Window_blind
Classification of power amplifier
The class-C amplifier has two modes of operation: tuned and untuned. The diagram shows a waveform from a simple class-C circuit without the tuned load.
Power_amplifier_classes
Type of technical drawing used to define requirements for engineered items
decades another method has arisen, called model-based definition (MBD) or digital product definition (DPD). In MBD, the information captured by the CAD software
Engineering_drawing
Data, information, knowledge, wisdom hierarchy
"words (text and/or verbal), numbers, diagrams, and images (still and/or video), which are the building blocks of communication", the purpose of which
DIKW_pyramid
Molecule able to block protein channels, frequently used as pharmaceutical
mediated by channel blockers may be referred to as noncompetitive or uncompetitive. Ion channel Channel opener "Medical Definition of Ion channel". MedicineNet
Channel_blocker
Visual modeling and design tool
(using Simulink and Simscape). Mathematical formulas in SysML's Internal Block diagrams and Parametric models can be simulated for plotting graphs used in the
Enterprise Architect (software)
Enterprise_Architect_(software)
Industrial safety system
self to the above design as the only means of materializing the HIPPS definition. One must always think of the HIPPS generically, as a means of isolating
High-integrity pressure protection system
High-integrity_pressure_protection_system
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