A number generated chronologically and used to identify

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A diagram and trace its history; may be used as a reference expression in identifying a specific version of a diagram. 2.12 Call arrow: a type of arrow mechanism that denotes a call from a block of a given model (or part of a model) to a block of another model (or another part of the same model) and provides communication between models or between different parts of the same model. 2.13 Child Block: A block on a child (or descendant) diagram.

A diagram that details a parent (or parent) block. 2.15 Context: The afghanistan whatsapp number data environment in which a function (or set of functions in a diagram) operates. 2.16 Context diagram: a diagram with a nodal number An ( n ≥ 0 ) that represents the context of the model. Diagram A-0, consisting of one block, is a required context diagram; diagrams with nodal numbers A-1, A-2, are additional context diagrams. 2.17 Control Arrow: A class of arrows that in IDEF0 represent controls, that is, conditions under which the output of a block will be correct.

Data or objects modeled as controls can be transformed by a function that produces the appropriate output. Control arrows are associated with the top side of an IDEF0 block. 2.18 Decomposition: division of the modeled function into component functions. 2.19 Design Reference Expression (DRE): A reference (e.g., node number, C-number, page number) written below the lower right corner of an IDEF0 block to indicate that it is detailed and which diagram details it. 2.20 Diagram: A part of the IDEF0 model that describes the decomposition of a block.