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MetricsEmsFactDistributionTable
(24 Sep 2010,
ArthurRyman
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(raw view)
---+ ems:FactDistributionTable Metric entities: [[MetricsEmsMeasure][ems:Measure]], [[MetricsEmsMeasureDistribution][ems:MeasureDistribution]], [[MetricsEmsFactTable][ems:FactTable]], [[MetricsEmsFactDistributionTable][ems:FactDistributionTable]], [[MetricsEmsMap][ems:Map]], [[MetricsEmsWorkBreakdownStructure][ems:WorkBreakdownStructure]] %TOC% ---++ Description A fact distribution table is a fact table that contains probability distributions instead of precise numeric values for its measures. Fact distribution tables are used in scenario assumptions (see [[MetricsEmsScenario#ems_assumesTable][ems:assumesTable]]) and estimate predictions (see [[MetricsEmsEstimate#ems_predictsTable]]). A ems:FactDistributionTable resource represents a fact distribution table. It is similar in structure to an [[MetricsEmsFactTable][ems:FactTable resource]]. It contains inline resources of type [[MetricsEmsFactTable#ems_Head][ems:Head]] and [[MetricsEmsFactTable#ems_DimensionCell][ems:DimensionCell]] which are defined in the data model of [[MetricsEmsFactTable][ems:FactTable]]. ---++ Properties An ems:FactDistributionTable resource has the following properties: | *Property* | *Range* | *Type* | *Occurrence* | *Edits* | *Description* | | dcterms:title | datatype | rdf:XMLLiteral | exactly-one | read-write | A short title for the fact distribution table. Valid XHTML <span> element content. | | ems:head | local inline resource | [[MetricsEmsFactTable#ems_Head][ems:Head]] | exactly-one | read-write | The head of the fact distribution table. | | ems:factDistribution | local inline resource | [[#ems_FactDistribution][ems:FactDistribution]] | one-or-more | read-write | A fact distribution row in the fact distribution table. | ---+++ dcterms:title This required property gives a short title for the fact distribution table. Its datatype is XML literal and it MUST contain valid XHTML <span> element content. ---+++ ems:head This required property contains an inline [[MetricsEmsFactTable#ems_Head][ems:Head]] resource that defines the columns of the fact distribution table. The head of the table describes the data that the table contains. ---+++ ems:factDistribution This multi-valued property refers to inline [[#ems_FactDistribution][ems:FactDistribution]] resources that are the rows of the fact distribution table. There MUST be one or more rows present in the fact distribution table. ---++ ems:FactDistribution This inline resource defines a row of a fact distribution table. It contains a set of dimension and measure distribution cells. The dimension and measure distribution cells MUST correspond exactly to the dimension and measure columns defined in the [[MetricsEmsFactTable#ems_Head][ems:Head]] resource of the fact distribution table. Each dimension cell MUST refer to a unique dimension column and each dimension column MUST be referred to by a unique dimension cell. Each measure distribution cell MUST refer to a unique measure column and each measure column MUST be referred to by a unique measure distribution cell. The correspondence between cells and columns is achieved in RDF/XML representations via resource identifiers. Each column defined in the head MUST have a unique identifier defined by an rdf:ID attribute. Each cell in a row MUST have an ems:inColumn property that refers to the column via an rdf:resource attribute. An ems:FactDistribution resource has the following properties: | *Property* | *Range* | *Type* | *Occurrence* | *Edits* | *Description* | | ems:dimensionCell | local inline resource | [[MetricsEmsFactTable#ems_DimensionCell][ems:DimensionCell]] | one-or-more | read-write | A cell that holds a dimension value for a dimension column. | | ems:measureDistributionCell | local inline resource | [[#ems_MeasureDistributionCell][ems:MeasureDistributionCell]] | one-or-more | read-write | A cell that holds a measure distribution for a measure column. | ---+++ ems:dimensionCell The value of this required property in an inline [[MetricsEmsFactTable#ems_DimensionCell][ems:DimensionCell]] resource that holds the value of the dimension for a dimension column. ---+++ ems:measureDistributionCell The value of this required property in an inline [[#ems_MeasureDistributionCell][ems:MeasureDistributionCell]] resource that holds the measure distribution for a measure column. ---++ ems:MeasureDistributionCell This inline resource contains a measure distribution in a row of a fact table. It has the following properties: | *Property* | *Range* | *Type* | *Occurrence* | *Edits* | *Description* | | ems:inColumn | resource | [[#ems_MeasureColumn][ems:MeasureColumn]] | exactly-one | read-write | The identifier of the measure column of this cell. | | ems:distribution | local inline resource | ems:ProbabilityDistribution | exactly-one | read-write | The probability distribution of the measure for this cell. | ---+++ ems:inColumn This required property is the identifier of the corresponding [[#ems_MeasureColumn][ems:MeasureColumn]] resource. ---+++ ems:distribution This required property is the probability distribution of the measure, which is an inline resource of type ems:ProbabilityDistribution. The value of this property MUST be a resource that is one of the concrete probability distributions listed in [[MetricsEMS10RestApiDataModel#Probability_Distribution_Data_Mo][Probability Distribution Data Models]]. ---++ Examples ---++ Comments Enter your comments here: %COMMENT%
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Topic revision: r6 - 24 Sep 2010 - 20:52:58 -
ArthurRyman
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