DD Template

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DD Template, Webmaster Forums, comic books, Super Duper, comic strips, Comics Community, new entries, colored black, Oh yeah, The Comics

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posted:: 5/28/2009
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Data Dictionary SUD: Data Item Description: Values: Range: Units: Resolution: to Rate: Validation Criteria: column) Comment: Definition (Required) (Required for discrete-valued primitive) (Required for continuous-valued primitive) (Required for continuous-valued primitive) (Smallest magnitude increment the item is required represent. Required for continuous-valued primitive) (Rate at which the item is updated) (Criteria in addition to the Y in Validate (User-defined attribute) Validate [Y | N] (Y means validate all attributes independently) Origin ([ | SUD]) (Leave blank for data items that never appear directly in a specification ) Destination (Same as for Origin) : (Required; only attribute used) Data Dictionary SUD: BNF Notation Notation = + m{ }n [|] () "" Meaning composed of together with iteration of select one of optional literal Description Indicates that the item named on its left is composed of the items on its right. Not used when data dictionary is in table form. Composes items into a group, but does not imply order. If ordering is required, specify it in a Comment field. Encloses an expression that may occur any number of times within the range m..n in a given instance of the item. The default value of m is 0; the default value of n is . Indicates that exactly one of the items separated by vertical bars will occur in a given instance of the item. Encloses an expression that may or may not occur in a given instance of the item. Shorthand for 0{…}1. Enclosed symbols appear in the item exactly as shown. Example Data Item User Command Rotation Angle Definition Description: Indication of desired activity Values: “Start”, “Stop”, “Rotate” Description: Amount of rotation desired Range: 0.0..360.0 Units: Degrees Resolution: 1/10 degree UC-Alpha-Char + 3{Digit}3 + (["X" | "B"]) Description: An uppercase alpha character Values: "A".."Z" Description: A digit Values: “0”..”9” Validate Y Y Origin Operator Operator Destination SUD SUD Part Number UC-Alpha-Char Digit Y Y Y SUD Vendor -2-