diff --git a/libreplan-webapp/src/main/java/org/libreplan/importers/ISchedulerManager.java b/libreplan-webapp/src/main/java/org/libreplan/importers/ISchedulerManager.java
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+++ b/libreplan-webapp/src/main/java/org/libreplan/importers/ISchedulerManager.java
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+/*
+ * This file is part of LibrePlan
+ *
+ * Copyright (C) 2013 St. Antoniusziekenhuis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.libreplan.importers;
+
+import java.util.List;
+
+import org.libreplan.business.common.entities.JobSchedulerConfiguration;
+import org.springframework.scheduling.quartz.CronTriggerBean;
+import org.springframework.scheduling.quartz.JobDetailBean;
+
+/**
+ * A manager(client) that dynamically creates jobs and cron-triggers using
+ * spring quartz library.
+ * <p>
+ * The start and destroy of the scheduler itself is managed by the Spring
+ * framework. The scheduler starts automatically when the application starts and
+ * destroyed when the application stops. The sole purpose of this manager is to
+ * create jobs {@link JobDetailBean} and cron-triggers {@link CronTriggerBean}
+ * when the scheduler is started. It links the triggers with the jobs and add
+ * them to the scheduler.
+ * <p>
+ * It also supports the rescheduling of jobs.
+ * <p>
+ * The SchedulerManager reads the jobs to be scheduled and the cron-triggers to
+ * fire the jobs form {@link JobSchedulerConfiguration}. Hence the
+ * {@link JobSchedulerConfiguration} must exist with predefined jobs and valid
+ * cron-triggers
+ *
+ * @author Miciele Ghiorghis <m.ghiorghis@antoniusziekenhuis.nl>
+ */
+public interface ISchedulerManager {
+
+    /**
+     * Reads job configuration from the database and schedules the jobs
+     */
+    void scheduleJobs();
+
+    /**
+     * Reschedule the job.
+     * <p>
+     * Reads the job to be rescheduled from the specified parameter
+     * {@link JobSchedulerConfiguration} and reschedule the job
+     *
+     * @param jobSchedulerConfiguration
+     *            the job scheduler configuration
+     */
+    void rescheduleJob(JobSchedulerConfiguration jobSchedulerConfiguration);
+
+    /**
+     * returns the scheduler info list. This is necessary for UI
+     *
+     * @return
+     */
+    List<SchedulerInfo> getSchedulerInfos();
+
+    /**
+     * To manually execute the job specified by <code>jobName</code>
+     *
+     * @param jobName
+     *            the name of the job to be executed
+     */
+    void doManual(String jobName);
+}