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5 | <title>The Greenstone Librarian Interface - Help Pages</title>
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7 | <body bgcolor="#E0F0E0">
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8 | <table width="100%" cellspacing="0" cellpadding="5" bgcolor="#B0D0B0" border="2">
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9 | <tr>
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10 | <td width="15%" align="center"><img width="45" src="../gatherer_medium.gif" height="45"></td><td width="*" align="center"><a name="selectingmetadatasets"><font size="5" face="Verdana"><strong>6.2: Selecting Metadata Sets</strong></font></a></td><td width="15%" align="center"><img width="45" src="../gatherer_medium.gif" height="45"></td>
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11 | </tr>
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12 | </table>
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13 |
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14 | This section explains how to specify metadata elements and how to add metadata sets to your collection.
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15 | <p></p>
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16 | <table bgcolor="#B0D0B0" width="480" cellpadding="2" border="2" align="center">
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17 | <tr>
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18 | <td align="center"><font size="4" face="Verdana"><strong>
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19 | Contents
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20 | </strong></font></td>
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21 | </tr>
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22 | <tr>
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23 | <td>
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24 | <table width="100%" cellpadding="2" border="0" bgcolor="#FFFFFF">
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25 |
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26 | <tr>
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27 | <td colspan="3"><a href="#simple">Simple Instructions:</a></td>
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28 | </tr>
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29 |
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30 | <tr>
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31 | <td colspan="1"> </td><td colspan="2">
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32 | Adding a metadata set
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33 | </td>
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34 | </tr>
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35 |
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36 |
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37 | <tr>
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38 | <td colspan="3"><a href="#advanced">Advanced Instructions:</a></td>
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39 | </tr>
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40 |
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41 | <tr>
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42 | <td colspan="1"> </td><td colspan="2">
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43 | Updating a set
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44 | </td>
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45 | </tr>
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46 |
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47 | <tr>
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48 | <td colspan="1"> </td><td colspan="2">
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49 | Creating new sets
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50 | </td>
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51 | </tr>
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52 |
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53 | <tr>
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54 | <td colspan="1"> </td><td colspan="2">
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55 | Exporting a set
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56 | </td>
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57 | </tr>
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58 |
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59 |
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60 | </table>
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61 | </td>
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62 | </tr>
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63 | </table>
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64 | <p></p>
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65 |
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66 | <p></p>
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67 | <img width="20" src="../gatherer_small.gif" height="20"><a name="simple"> Simple Instructions:</a>
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68 | <p style="text-align:justify"></p>
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69 | Sets of predefined metadata elements are known as "metadata sets". An example
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70 | is the Dublin Core metadata set. When you add a metadata set to your
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71 | collection, its elements become available for selection. You can have more than
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72 | one set; to prevent name clashes a short identifier that identifies the
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73 | metadata set is pre-pended to the element name. For instance the Dublin Core
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74 | element Creator becomes "dc.Creator". Metadata sets are stored in the
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75 | Librarian Interface's metadata folder and have the suffix ".mds".
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76 | <p></p>
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77 | To add a metadata set, choose "Metadata Sets" from the menu bar and select the
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78 | "Import Set" action. A list appears that shows the sets stored in the Librarian
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79 | Interface's metadata folder. Choose one and open it, or click "Browse" to
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80 | locate metadata set files stored elsewhere. If the metadata elements have associated value trees, you will be asked whether to import
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81 | all values associated with the elements in the set, just those values that make
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82 | up the structure of hierarchy-based metadata, or no values at all.
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83 | <p></p>
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84 | <img width="20" src="../gatherer_small.gif" height="20"><a name="advanced"> Advanced Instructions:</a>
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85 | <p style="text-align:justify"></p>
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86 | To install a newer version of a metadata set, simply add it as above. The
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87 | Librarian Interface merges the sets, but does not alter values you have
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88 | entered. You may be asked how to merge certain elements. For example if the
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89 | current set and the one you are importing share a common element (which is
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90 | likely if you are installing a new version of a set), you are shown as much
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91 | information about the existing and new elements as possible, and asked how to
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92 | proceed. Options include merging the elements, renaming the new one, replacing
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93 | the old element entirely, or skipping this element. When merging two elements
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94 | you are confronted with the same options, but this time at the "attributes"
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95 | (rather than "elements") level. You can cancel the import operation at any
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96 | time.
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97 | <p></p>
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98 | The ".mds" files are expressed in XML format. You can edit an existing metadata
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99 | set or create a new one with an ordinary text editor. If you are starting a
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100 | new file, copy the Document Type Definition and be sure to follow it, otherwise
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101 | the Librarian Interface will be unable to load the metadata set. Use of an
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102 | XML validator or validating editor is recommended.
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103 | <p></p>
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104 | To export a metadata set, or part of one (e.g. its assigned value hierarchy, or
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105 | all its values), return to the Librarian Interface and choose "Export Set" from
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106 | the "Metadata Set" menu. You will be asked to select appropriate export
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107 | options, and a file to export into.
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108 | </body>
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109 | </html>
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