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1 <?xml version="1.0" encoding="utf-8"?>
2 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
3 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
4 <html lang="en-GB" xml:lang="en-GB" xmlns="http://www.w3.org/1999/xhtml">
5 <head>
6 <title>DAWG: Implementation Reporting - EARL results</title>
7 <link rel="stylesheet" type="text/css" href="http://www.w3.org/StyleSheets/TR/base.css" />
8
9 <style type="text/css">
10
11 pre.diag { background-color: #f0f0f0 ; padding: 0.5em ; border: 1px solid black ; margin-right: 4em ; }
12 span.code { font-family: monospace;}
13 pre.cvs-id {color: gray}
14
15 #tableResult td, th { padding-left:0.5em; padding-right: 0.5em; padding-top:0.2ex ; padding-bottom:0.2ex ;}
16
17 </style>
18 <meta name="RCS-Id" content="$Id: earl.html,v 1.3 2007/08/12 17:54:28 lfeigenb Exp $" />
19 </head>
20 <body>
21 <div class="head">
22 <a href="http://www.w3.org/"><img height="48" width="72" alt="W3C" src="
23 http://www.w3.org/Icons/w3c_home" /></a>
24 <h1 id="main">DAWG: Implementation Reporting - EARL results</h1>
25 <dl>
26 <dd>&nbsp;</dd>
27 <dt>Document Editor</dt>
28 <dd><a href="mailto:feigenbl@us.ibm.com">Lee Feigenbaum</a> &ndash;
29 invited expert</dd>
30 <dt>Version:</dt>
31 <dd><code>$Revision: 1.3 $</code></dd>
32 </dl>
33
34 <p class="copyright"><a href="
35 http://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a> &copy;
36 2004 <a href="http://www.w3.org/"><acronym title="
37 World Wide Web Consortium">W3C</acronym></a><sup>&reg;</sup> ( <a href="
38 http://www.csail.mit.edu/"><acronym title="
39 Massachusetts Institute of Technology">MIT</acronym></a>, <a href="
40 http://www.ercim.org/"><acronym title="
41 European Research Consortium for Informatics and Mathematics">ERCIM</acronym></a>,
42 <a href="http://www.keio.ac.jp/">Keio</a>), All Rights Reserved. W3C
43 <a href="
44 http://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>,
45 <a href="
46 http://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a>,
47 and <a href="
48 http://www.w3.org/Consortium/Legal/copyright-documents">document use</a>
49
50 rules apply.</p></div>
51
52 <hr title="Separator for header" />
53 <div>
54 <h2 id="abstract">Abstract</h2>
55 <p>This document describes the use of <a href="http://www.w3.org/TR/EARL10-Schema/">EARL</a> by the
56 <a href="http://www.w3.org/2001/sw/DataAccess/">RDF Data Access Working
57 Group</a>. The Working Group is using EARL to collect reports of implementations' experience
58 running the group's <a href="http://www.w3.org/2001/sw/DataAccess/tests/r2">test suite</a>.</p>
59 </div>
60 <div>
61 <h2><a name="status" id="status">Status of This Document</a></h2>
62 <p>Working Document.</p>
63 </div>
64 <hr />
65 <p>
66 The
67 <a href="http://www.w3.org/2001/sw/DataAccess/">RDF Data Access Working
68 Group</a> (DAWG) uses a test-driven process.&nbsp; The
69 <a href="r2">test area</a> is a collection of
70 collection of the current test cases of the working group. </p>
71 <p>As one of the exit criteria to transition the <a href="http://www.w3.org/TR/rdf-sparql-query/">SPARQL Query Language</a> specification to
72 <a href="http://www.w3.org/2004/02/Process-20040205/tr.html#RecsPR">Proposed Recommendation</a> the group is seeking to demonstrate that
73 <blockquote>
74 <i>Each identified SPARQL feature has at least two implementations.</i>
75 </blockquote>
76 To do this, the group is asking for implementors of SPARQL to run their implementations against the <a href="r2">test suite</a> and report the results to the group. Reports can be submitted to <tt>public-rdf-dawg-comments@w3.org</tt>, a mailing list with a public archive. This document presents an example of EARL results and highlights a few best practices that will help the Working Group produce the implementation report.
77 </p>
78
79 <h4>The Structure of an EARL Report</h4>
80
81 <p><i>(In this section, the <tt>earl:</tt> prefix is shorthand for <tt>http://www.w3.org/ns/earl#</tt>.)</i></p>
82
83 <p>An <a href="http://www.w3.org/TR/EARL10-Schema/">EARL</a> report consists of one <tt>earl:assertion</tt> per test run. Each assertion is <tt>earl:assertedBy</tt> the person or software that is responsible for running the test. Each assertion references the test being run via the <tt>earl:test</tt> predicate and identifies the implementation being tested via the <tt>earl:subject</tt> predicate.</p>
84
85 <p>The result of the single test run against an implementation is given by the <tt>earl:result</tt> predicate. The object of this predicate is an <tt>earl:TestResult</tt> that uses the <tt>earl:outcome</tt> predicate to specify the test's result (e.g. <tt>earl:pass</tt>, but see the EARL Schema for other possible <a href="http://www.w3.org/TR/EARL10-Schema/#outcomevalue">outcome values</a>).
86
87 <h4>Best Practices for Reporting EARL to the DAWG</h4>
88
89 <p>In order to assemble a consistent implementation report, the DAWG asks that EARL reports submitted to the group observe the following conventions:</p>
90
91 <ul>
92 <li>An EARL assertor (the object of <tt>earl;assertedBy</tt>) can be a URI or a blank node, but should itself contain a <tt>foaf:homepage</tt> triple that uniquely identifies the assertor.</li>
93 <li>The object of <tt>earl:subject</tt> should be a URI. We use the <a href="http://usefulinc.com/doap/">DOAP</a> vocabulary to provide further information on the implementation being tested.</li>
94 <li>The canonical URIs for a test (the objects of <tt>earl:test</tt>) should be based on the test's URI as given by its manifest file. (For example, <tt>http://www.w3.org/2001/sw/DataAccess/tests/data-r2/graph/manifest#dawg-graph-01</tt>.)
95 </ul>
96
97 <h4>Example EARL</h4>
98
99 <p>The following example of EARL reporting is excerpted from <a href="http://lists.w3.org/Archives/Public/public-rdf-dawg/2007JulSep/0005.html">an example report</a> by DAWG participant Chimezie Ogbuji.</p>
100
101 <pre>
102 @prefix _6: &lt;http://&gt;.
103 @prefix _7: &lt;http://www.w3.org/2001/sw/DataAccess/tests/data-r2/graph/manifest#&gt;.
104 @prefix _8: &lt;http://purl.org/net/chimezie/foaf#&gt;.
105 @prefix _9: &lt;http://purl.org/net/chimezie/&gt;.
106 @prefix doap: &lt;http://usefulinc.com/ns/doap#&gt;.
107 @prefix earl: &lt;http://www.w3.org/ns/earl#&gt;.
108 @prefix foaf: &lt;http://xmlns.com/foaf/0.1/&gt;.
109 @prefix rdf: &lt;http://www.w3.org/1999/02/22-rdf-syntax-ns#&gt;.
110 @prefix rdfs: &lt;http://www.w3.org/2000/01/rdf-schema#&gt;.
111 @prefix xml: &lt;http://www.w3.org/XML/1998/namespace&gt;.
112
113 _8:chime a foaf:Person;
114 rdfs:seeAlso _9:foaf;
115 foaf:homepage &lt;http://metacognition.info&gt;;
116 foaf:name "Chimezie Ogbuji".
117
118 &lt;http://rdflib.net&gt; a doap:Project;
119 doap:name "RDFLib";
120 doap:release
121 [ a doap:Version;
122 doap:created "2007-07-06"^^&lt;http://www.w3.org/2001/XMLSchema#date&gt;;
123 doap:name "rdflib-2.4.1.dev-r1155"].
124
125 [ a earl:Assertion;
126 earl:assertedBy _8:chime;
127 earl:result [ a earl:TestResult;
128 earl:outcome earl:pass];
129 earl:subject &lt;http://rdflib.net&gt;;
130 earl:test _7:dawg-graph-02].
131
132 [ a earl:Assertion;
133 earl:assertedBy _8:chime;
134 earl:result [ a earl:TestResult;
135 earl:outcome earl:pass];
136 earl:subject &lt;http://rdflib.net&gt;;
137 earl:test _7:dawg-graph-01].
138
139 [ a earl:Assertion;
140 earl:assertedBy _8:chime;
141 earl:result [ a earl:TestResult;
142 earl:outcome earl:pass];
143 earl:subject &lt;http://rdflib.net&gt;;
144 earl:test _7:dawg-graph-05].
145
146 [ a earl:Assertion;
147 earl:assertedBy _8:chime;
148 earl:result [ a earl:TestResult;
149 earl:outcome earl:pass];
150 earl:subject &lt;http://rdflib.net&gt;;
151 earl:test _7:dawg-graph-10].
152
153 [ a earl:Assertion;
154 earl:assertedBy _8:chime;
155 earl:result [ a earl:TestResult;
156 earl:outcome earl:pass];
157 earl:subject &lt;http://rdflib.net&gt;;
158 earl:test _7:dawg-graph-08].
159
160 [ a earl:Assertion;
161 earl:assertedBy _8:chime;
162 earl:result [ a earl:TestResult;
163 earl:outcome earl:pass];
164 earl:subject &lt;http://rdflib.net&gt;;
165 earl:test _7:dawg-graph-03].
166
167 [ a earl:Assertion;
168 earl:assertedBy _8:chime;
169 earl:result [ a earl:TestResult;
170 earl:outcome earl:pass];
171 earl:subject &lt;http://rdflib.net&gt;;
172 earl:test _7:dawg-graph-06].
173
174 [ a earl:Assertion;
175 earl:assertedBy _8:chime;
176 earl:result [ a earl:TestResult;
177 earl:outcome earl:pass];
178 earl:subject &lt;http://rdflib.net&gt;;
179 earl:test _7:dawg-graph-04].
180
181 [ a earl:Assertion;
182 earl:assertedBy _8:chime;
183 earl:result [ a earl:TestResult;
184 earl:outcome earl:pass];
185 earl:subject &lt;http://rdflib.net&gt;;
186 earl:test _7:dawg-graph-11].
187
188 [ a earl:Assertion;
189 earl:assertedBy _8:chime;
190 earl:result [ a earl:TestResult;
191 earl:outcome earl:pass];
192 earl:subject &lt;http://rdflib.net&gt;;
193 earl:test _7:dawg-graph-07].
194
195 [ a earl:Assertion;
196 earl:assertedBy _8:chime;
197 earl:result [ a earl:TestResult;
198 earl:outcome earl:pass];
199 earl:subject &lt;http://rdflib.net&gt;;
200 earl:test _7:dawg-graph-09].
201 </pre>
202 <p>&nbsp;</p>
203 </body>
204 </html>