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167<h1>What is ZOO-Kernel ?<a class="headerlink" href="#what-is-zoo-kernel" title="Permalink to this headline"></a></h1>
168<p>ZOO-Kernel is the heart of the <a class="reference external" href="http://zoo-project.org">ZOO-Project</a> WPS platform. It is a WPS compliant implementation written in C language which provides a powerful and extensible WPS server.</p>
169<p>ZOO-Kernel implements and complies with the <a class="reference external" href="http://www.opengeospatial.org/standards/wps/">WPS 1.0.0</a> standard edited by the <a class="reference external" href="http://www.opengeospatial.org/">Open Geospatial Consortium</a>. It is able to perform the WPS operations as indicated in the OpenGIS ® specification, as listed bellow:</p>
170<ul class="simple">
171<li><strong>GetCapablities</strong>: Returns service-level metadata information.It provides the list of available processing services.</li>
172<li><strong>DescribeProcess</strong>: Returns a description of a process, including its supported input and output.</li>
173<li><strong>Execute</strong>:  Launches computation and returns the output produced by a particular process.</li>
174</ul>
175<div class="section" id="first-class-wps-server">
176<h2>First class WPS server<a class="headerlink" href="#first-class-wps-server" title="Permalink to this headline"></a></h2>
177<p>ZOO-Kernel is an extensible WPS server that makes your system more powerful. It provides a full-featured processing engine which runs on Linux, Mac OSX ™ and Windows ™ operating systems. ZOO-Kernel works on common web servers (namely <a class="reference external" href="http://httpd.apache.org/">Apache</a> or <a class="reference external" href="http://www.iis.net/">IIS</a> ™) and can be seamlessly integrated to new or existing web platforms.</p>
178<p>ZOO-Kernel lets you process geospatial or non geospatial data using well formed WPS requests. The WPS server is able to manage and chain WPS Services (see ZOO-Services for examples) by loading dynamic libraries and source code written in different programming languages.</p>
179<div class="section" id="supported-programming-languages">
180<h3>Supported programming languages<a class="headerlink" href="#supported-programming-languages" title="Permalink to this headline"></a></h3>
181<p>ZOO-Kernel is a <strong>polyglot</strong>. The software is written in a valid form of multiple programming languages, which performs the same operations independent of the programming language used to compile or interpret it.</p>
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190<tr class="row-odd"><td><strong>Language</strong></td>
191<td><strong>ServiceProvider</strong></td>
192<td><strong>DataStructure</strong></td>
193<td><strong>Return</strong></td>
194</tr>
195<tr class="row-even"><td>C / C++</td>
196<td>Shared Library</td>
197<td>maps* M</td>
198<td>integer</td>
199</tr>
200<tr class="row-odd"><td>Java</td>
201<td>Class File</td>
202<td><a class="reference external" href="http://download.oracle.com/javase/6/docs/api/java/util/HashMap.html">HashMap</a></td>
203<td>integer</td>
204</tr>
205<tr class="row-even"><td>Python</td>
206<td>Module File</td>
207<td><a class="reference external" href="http://docs.python.org/tutorial/datastructures.html#dictionaries">Dictionary</a></td>
208<td>integer</td>
209</tr>
210<tr class="row-odd"><td>PHP</td>
211<td>Script File</td>
212<td><a class="reference external" href="http://php.net/manual/language.types.array.php">Array</a></td>
213<td>integer</td>
214</tr>
215<tr class="row-even"><td>Perl</td>
216<td>Script File</td>
217<td>&nbsp;</td>
218<td>integer</td>
219</tr>
220<tr class="row-odd"><td>Ruby</td>
221<td>Script File</td>
222<td><a class="reference external" href="http://ruby-doc.org/core-2.2.0/Hash.html">Hash</a></td>
223<td>integer</td>
224</tr>
225<tr class="row-even"><td>Fortran</td>
226<td>Shared Library</td>
227<td>CHARACTER*(1024) M(10,30)</td>
228<td>integer</td>
229</tr>
230<tr class="row-odd"><td>JavaScript</td>
231<td>Script file</td>
232<td><a class="reference external" href="http://www.json.org/">Object</a> or Array</td>
233<td>Object/Array</td>
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