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.

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.

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.

The Bureau of National Affairs (BNA; Washington, D.C.) is now ... by Business Publisher

At the core of each of its products is its Image Flow Processing, Data Flow Computing and Information Fusion software.

Weekly profile: Cogent Inc. (COGT) by Los Angeles Business Journal

When coupled with the VSC7147 2Gb/s Fibre Channel Hex PBC or the VSC7192 12-Channel Fibre Channel Arbitrated Loop Switch, the VSC120 can disconnect a disk drive from the loop, perform diagnostics, and report status to the host without interrupting data flow to other resources within the enclosure.

VITESSE INTROS DUAL-PORTED FIBRE CHANNEL ENCLOSURE MANAGEMENT ... by EDP Weekly's IT Monitor

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