| | 54 | |
| | 55 | ==== Discussion ==== |
| | 56 | |
| | 57 | * document identifier: a persistent identifier of a document |
| | 58 | * http://mpdl.mpiwg-berlin.mpg.de/music/ramones/ramones_2004.xml |
| | 59 | * Advantages |
| | 60 | * intuitive |
| | 61 | * easy to retrieve |
| | 62 | * compatible to XLink |
| | 63 | * REST like |
| | 64 | * Disadvantages |
| | 65 | * could be used once more (no id any more) |
| | 66 | * http://mpdl.mpiwg-berlin.mpg.de/permanent/library/471122KK |
| | 67 | * Advantages |
| | 68 | * persistent id (could be used exactly one time) |
| | 69 | * already used in Echo-System and library |
| | 70 | * Disadvantages |
| | 71 | * counterintuitive |
| | 72 | * not easy to retrieve |
| | 73 | * page number |
| | 74 | * http://mpdl.mpiwg-berlin.mpg.de/music/ramones/ramones_2004.xml#xpointer((id('page6')) |
| | 75 | * Advantages |
| | 76 | * compatible to XLink/XPointer |
| | 77 | * could be interpreted also without <pb id="page6"/> in the document (through getFragment implementation) |
| | 78 | * REST like |
| | 79 | * Disadvantages |
| | 80 | * if in XML document <pb/> elements are inserted or deleted afterwards many old XPointer links are broken |
| | 81 | * http://mpdl.mpiwg-berlin.mpg.de/music/ramones/ramones_2004.xml?page=6 |
| | 82 | * Advantages |
| | 83 | * well-nigh compatible to XLink/XPointer |
| | 84 | * could be interpreted also without <pb id="page6"/> in the document (through getFragment implementation) |
| | 85 | * REST like |
| | 86 | * Disadvantages |
| | 87 | * if in XML document <pb/> elements are inserted or deleted afterwards many old XPointer links are broken |
| | 88 | * two parameters necessary (page, xpointer) |
| | 89 | * element identifier |
| | 90 | * xpath expression: /tei[1]/text[1]/body[1]/chap[3]/p[1]/s[2] |
| | 91 | * Advantages |
| | 92 | * could be generated dynamically for the XML page |
| | 93 | * intuitive |
| | 94 | * full compatible to XLink/XPointer |
| | 95 | * easy to retrieve |
| | 96 | * implementation is easy and consistent (through saxon:path) |
| | 97 | * Disadvantages |
| | 98 | * if in XML document elements are inserted, updated or deleted afterwards many old XPointer links are broken |
| | 99 | * relative long string |
| | 100 | * node id: 1.1.1.3.1.2 |
| | 101 | * Advantages |
| | 102 | * could be generated dynamically for the XML page |
| | 103 | * intuitive |
| | 104 | * compatible to XLink/XPointer |
| | 105 | * easy to retrieve |
| | 106 | * Disadvantages |
| | 107 | * if in XML document elements are inserted, updated or deleted afterwards many old XPointer links are broken |
| | 108 | * id attribute in XML document: <s id="47114711">...</s> |
| | 109 | * Advantages |
| | 110 | * if in XML document elements are inserted, updated or deleted afterwards only old XPointer links with deleted elements are broken |
| | 111 | * compatible to XLink/XPointer |
| | 112 | * Disadvantages |
| | 113 | * through upload process the document has to be modified: for each element in XML document an id attribute has to be generated, also implementation is more complex |
| | 114 | * if a user uses an id attribute already in his document but not consistent these id attributes have to be replaced by a new consistent id (not easy to implement) |
| | 115 | * the document size is bigger with all these id attribute values |
| | 116 | * the id is not intuitive |
| | 117 | * special id attribute in XML document: <s xmlNodeId="47114711">...</s> |
| | 118 | * Advantages |
| | 119 | * user could use his own id attribute in document as he like |
| | 120 | * if in XML document elements are inserted, updated or deleted afterwards only old XPointer links with deleted elements are broken |
| | 121 | * compatible to XLink/XPointer |
| | 122 | * Disadvantages |
| | 123 | * through upload process the document has to be modified: for each element in XML document an xmlNodeId attribute has to be generated, also implementation is more complex |
| | 124 | * the document size is bigger with all these id attribute values |
| | 125 | * the id is not intuitive |
| | 126 | * point/range expression |
| | 127 | * point(.0) or range(1.22, 1.34) |
| | 128 | * Advantages |
| | 129 | * pointers could point to a text portion, is partly already implemented |
| | 130 | * Disadvantages |
| | 131 | |
| | 132 | |
| | 133 | ==== Selection / Solution ==== |
| | 134 | * document identifier |
| | 135 | * http://mpdl.mpiwg-berlin.mpg.de/permanent/library/471122KK |
| | 136 | * page number |
| | 137 | * http://mpdl.mpiwg-berlin.mpg.de/music/ramones/ramones_2004.xml#xpointer((id('page6')) |
| | 138 | * element identifier (choice between these 2 best possible solution) |
| | 139 | * xpath expression: /tei[1]/text[1]/body[1]/chap[3]/p[1]/s[2] |
| | 140 | * special id attribute in XML document: <s xmlNodeId="47114711">...</s> |
| | 141 | * point/range expression |
| | 142 | * point(.0) or range(1.22, 1.34) |
| | 143 | |
| | 144 | |
