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diff --git a/sdc-workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/UniqueValueService.java b/sdc-workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/UniqueValueService.java
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+++ b/sdc-workflow-designer-be/src/main/java/org/onap/sdc/workflow/services/UniqueValueService.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright © 2018 European Support Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onap.sdc.workflow.services;
+
+import java.util.Optional;
+import org.apache.commons.lang3.ArrayUtils;
+import org.onap.sdc.workflow.persistence.UniqueValueRepository;
+import org.onap.sdc.workflow.persistence.types.UniqueValueEntity;
+import org.onap.sdc.workflow.services.exceptions.UniqueValueViolationException;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+@Service("uniqueValueService")
+public class UniqueValueService {
+
+    private static final String FORMATTED_UNIQUE_VALUE_SEPARATOR = "_";
+
+    private final UniqueValueRepository uniqueValueRepository;
+
+    @Autowired
+    public UniqueValueService(UniqueValueRepository uniqueValueRepository) {
+        this.uniqueValueRepository = uniqueValueRepository;
+    }
+
+    /**
+     * Create unique value.
+     *
+     * @param type              the type
+     * @param uniqueCombination the unique combination
+     */
+    public void createUniqueValue(String type, String... uniqueCombination) {
+        formatValue(uniqueCombination).ifPresent(formattedValue -> {
+            validateUniqueValue(type, formattedValue, uniqueCombination);
+            uniqueValueRepository.insert(new UniqueValueEntity(type, formattedValue));
+        });
+    }
+
+    /**
+     * Delete unique value.
+     *
+     * @param type              the type
+     * @param uniqueCombination the unique combination
+     */
+    public void deleteUniqueValue(String type, String... uniqueCombination) {
+        formatValue(uniqueCombination)
+                .ifPresent(formattedValue -> uniqueValueRepository.delete(new UniqueValueEntity(type, formattedValue)));
+
+    }
+
+    /**
+     * Update unique value.
+     *
+     * @param type          the type
+     * @param oldValue      the old value
+     * @param newValue      the new value
+     * @param uniqueContext the unique context
+     */
+    public void updateUniqueValue(String type, String oldValue, String newValue, String... uniqueContext) {
+        if (newValue == null || !newValue.equalsIgnoreCase(oldValue)) {
+            createUniqueValue(type, ArrayUtils.addAll(uniqueContext, newValue));
+            deleteUniqueValue(type, ArrayUtils.addAll(uniqueContext, oldValue));
+        }
+    }
+
+    /**
+     * Validate unique value.
+     *
+     * @param type              the type
+     * @param uniqueCombination the unique combination
+     */
+    public void validateUniqueValue(String type, String... uniqueCombination) {
+        formatValue(uniqueCombination)
+                .ifPresent(formattedValue -> validateUniqueValue(type, formattedValue, uniqueCombination));
+    }
+
+    private Optional<String> formatValue(String[] uniqueCombination) {
+        if (ArrayUtils.isEmpty(uniqueCombination) || getValueWithoutContext(uniqueCombination) == null) {
+            return Optional.empty();
+        }
+
+        uniqueCombination[uniqueCombination.length - 1] = getValueWithoutContext(uniqueCombination).toLowerCase();
+        return Optional.of(String.join(FORMATTED_UNIQUE_VALUE_SEPARATOR, uniqueCombination));
+    }
+
+    private void validateUniqueValue(String type, String formattedValue, String[] uniqueCombination) {
+        if (isUniqueValueOccupied(type, formattedValue)) {
+            throw new UniqueValueViolationException(type, getValueWithoutContext(uniqueCombination));
+        }
+    }
+
+    private boolean isUniqueValueOccupied(String type, String formattedValue) {
+        return uniqueValueRepository.findById(new UniqueValueEntity(type, formattedValue)).isPresent();
+    }
+
+    /**
+     * Checks if a unique value is taken.
+     *
+     * @return true if the unique value is occupied, false otherwise
+     */
+    public boolean isUniqueValueOccupied(String type, String... uniqueCombination) {
+        return formatValue(uniqueCombination).map(formattedValue -> isUniqueValueOccupied(type, formattedValue))
+                                             .orElse(false);
+    }
+
+    private String getValueWithoutContext(String[] uniqueCombination) {
+        return uniqueCombination[uniqueCombination.length - 1];
+    }
+}