# descriptive metadata specification

Let $L$ = $\cup $ $Dk$ be a set of literals defined as the union of domains $Dk$ of simple datatypes (e.g., strings, numbers, dates, etc.). Let also $R$ and $P$ represent sets of labels for resources and properties respectively. A descriptive metadata specification is a structure ($G$, $R$ $\cup $ $L$ $\cup $ $P$, $F$), where: (1) $F$ : $(V$ $\cup $ $E)$ $\xc3\mathrm{\xa2}\xe2\mathrm{\x80}\mathrm{}\xe2\mathrm{\x80}\mathrm{\x99}$ $(R$ $\cup $ $L$ $\cup $ $P$) can assign general labels $R$ $\cup $ $P$ and literals from $L$ to nodes of the graph structure; (2) for each directed edge $e$ = ($vi$ , $vj$) of $G$, $F$($vi$) $\in $ $R$ $\cup $ $L$, $F$($vj$ ) $\in $ $R$ $\cup $ $L$ and $F(e)$ $\in $ $P$; (3) $F(vk)$ $\in $ $L$ if and only if node vk has outdegree 0.

Title | descriptive metadata specification |
---|---|

Canonical name | DescriptiveMetadataSpecification |

Date of creation | 2013-03-22 15:31:29 |

Last modified on | 2013-03-22 15:31:29 |

Owner | yi6604 (10640) |

Last modified by | yi6604 (10640) |

Numerical id | 5 |

Author | yi6604 (10640) |

Entry type | Definition |

Classification | msc 68P20 |