data flow


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data flow

[′dad·ə ‚flō]
(communications)
The route followed by a data message from its origination to its destination, including all the nodes through which it travels.
(computer science)
The transfer of data from an external storage device, through the processing unit and memory, and out to an external storage device.

data flow

A data flow architecture or language performs a computation when all the operands are available. Data flow is one kind of data driven architecture, the other is demand driven. It is a technique for specifying parallel computation at a fine-grain level, usually in the form of two-dimensional graphs in which instructions that are available for concurrent execution are written alongside each other while those that must be executed in sequence are written one under the other. Data dependencies between instructions are indicated by directed arcs. Instructions do not reference memory since the data dependence arcs allow data to be transmitted directly from the producing instruction to the consuming one.

Data flow schemes differ chiefly in the way that they handle re-entrant code. Static schemes disallow it, dynamic schemes use either "code copying" or "tagging" at every point of reentry.

An example of a data flow architecture is MIT's VAL machine.

data flow

(1) In computers, the path of data from source document to data entry to processing to final reports. Data changes format and sequence (within a file) as it moves from program to program.

(2) In communications, the path taken by a message from origination to destination that includes all nodes through which the data travels.
References in periodicals archive ?
The channel partners will be utilizing Authentica's data integration tool, DataSense, to manage the data flow between their enterprise application and other K-12 applications for their school district customers.
com)-- Devart announced the first release of Devart SSIS Data Flow Components - a set of components for SQL Server Integration Services (SSIS) packages that allow loading data from and to various sources in SSIS Data Flows.
Tenders are invited for Traffic Data Flow and Management.
Khedker, Sanyal and Karkare (computer science and engineering, IIT Bombay) have written this textbook on data flow analysis for researchers and students who need to produce performance-maximizing code, apply reverse engineering programs of verify the integrity of existing programs.
Topics covered by the publication include direct marketing regulations, subject access requests, identity theft, encryption, electronic data interchange standards, monitoring and surveillance in the workplace, international data protection, network security, infrastructure protection, cross-border data flow, outsourcing and data protection policies and audits.
This means they must take into account not only specific data points, but also the relationships between those data points, and the changes in data flow and structure over time.
Data flow, quality of service (QoS), software modifications, silicon component selection criteria and board layout are worthy of review for this next-generation PCI bus.
An insurer must undergo a traditional gap analysis to examine what privacy data it has, how it collects it, manages it, uses it, shares it and generally each privacy data flow associated with its business, be it an internal data flow, or an external data flow.
Support consists of launch and early orbit operations for the Inertial Upper Stage/Defense Support Program; data flow operations for National Aeronautics and Space Administration satellite programs, the Space Transportation System, boosters and other Air Force Satellite Control Network eternal users; operations support to include satellite support planning, scheduling and reporting, attitude and orbital analysis, and data processing; level software and level 1 database maintenance for AFSCN common user and mission unique equipment; simulation and scenario generation for mainframe systems (i.
Under many of the new privacy laws, potential risks for business include the loss of data flow, costly litigation, criminal prosecution, injunctions, director and officer liability, damage to business reputation, loss of consumer confidence, and toss of market value.
DERY: If "visual models for the mapping of data flow had become one of the important narratives" that evolved in Net art, as Christiane observes, I would ask what the epistemic, technodeterministic, or social logic is behind this cultural development.
To illustrate the budgeting process, let's assume that we are the owners of a hypothetical computer company named Data Flow.