diff --git a/lib/import/Importer.js b/lib/import/Importer.js
index 3af536df..801adcd2 100644
--- a/lib/import/Importer.js
+++ b/lib/import/Importer.js
@@ -1,7 +1,13 @@
-import { find, forEach, map } from 'min-dash';
-import { is } from '../util/ModelUtil';
+import {
+  find,
+  forEach,
+  map
+} from 'min-dash';
+
 import BpmnTreeWalker from './BpmnTreeWalker';
 
+import { is } from '../util/ModelUtil';
+
 
 /**
  * The importBpmnDiagram result.
@@ -70,15 +76,15 @@ export function importBpmnDiagram(diagram, definitions, bpmnDiagram) {
 
     bpmnDiagram = bpmnDiagram || (definitions.diagrams && definitions.diagrams[0]);
 
-    var diagramsToLoad = getDiagramsToLoad(definitions, bpmnDiagram);
+    var diagramsToImport = getDiagramsToImport(definitions, bpmnDiagram);
 
-    if (!diagramsToLoad) {
+    if (!diagramsToImport) {
       throw new Error(translate('no diagram to display'));
     }
 
     // traverse BPMN 2.0 document model,
     // starting at definitions
-    forEach(diagramsToLoad, function(diagram) {
+    forEach(diagramsToImport, function(diagram) {
       walker.handleDefinitions(definitions, diagram);
     });
 
@@ -118,13 +124,15 @@ export function importBpmnDiagram(diagram, definitions, bpmnDiagram) {
 }
 
 /**
- * Returns all diagrams in the same hirarchy as the requested Diagram.
- * It includes all parent- and subProcess diagrams.
+ * Returns all diagrams in the same hirarchy as the requested diagram.
+ * Includes all parent and sub process diagrams.
  *
  * @param {Array} definitions
  * @param {Object} bpmnDiagram
+ *
+ * @returns {Array<Object>}
  */
-function getDiagramsToLoad(definitions, bpmnDiagram) {
+function getDiagramsToImport(definitions, bpmnDiagram) {
   if (!bpmnDiagram) {
     return;
   }
@@ -139,10 +147,10 @@ function getDiagramsToLoad(definitions, bpmnDiagram) {
   // in case the process is part of a collaboration, the plane references the
   // collaboration, not the process
   var collaboration;
+
   if (is(rootElement, 'bpmn:Collaboration')) {
     collaboration = rootElement;
-  }
-  else {
+  } else {
     collaboration = find(definitions.rootElements, function(element) {
       if (!is(element, 'bpmn:Collaboration')) {
         return;
@@ -154,38 +162,38 @@ function getDiagramsToLoad(definitions, bpmnDiagram) {
     });
   }
 
-  var roots = [rootElement];
+  var rootElements = [ rootElement ];
 
   // all collaboration processes can contain sub-diagrams
   if (collaboration) {
-    roots = map(collaboration.participants, function(participant) {
+    rootElements = map(collaboration.participants, function(participant) {
       return participant.processRef;
     });
 
-    roots.push(collaboration);
+    rootElements.push(collaboration);
   }
 
-  var allChildren = selfAndAllFlowElements(roots);
+  var allChildren = selfAndAllFlowElements(rootElements);
 
   // if we have multiple diagrams referencing the same element, we
   // use the first in the file
-  var diagramsToLoad = [bpmnDiagram];
-  var handledElements = [bpmnElement];
+  var diagramsToImport = [ bpmnDiagram ];
+  var handledElements = [ bpmnElement ];
 
   forEach(definitions.diagrams, function(diagram) {
-    var bo = diagram.plane.bpmnElement;
+    var businessObject = diagram.plane.bpmnElement;
 
     if (
-      allChildren.indexOf(bo) !== -1 &&
-      handledElements.indexOf(bo) === -1
+      allChildren.indexOf(businessObject) !== -1 &&
+      handledElements.indexOf(businessObject) === -1
     ) {
-      diagramsToLoad.push(diagram);
-      handledElements.push(bo);
+      diagramsToImport.push(diagram);
+      handledElements.push(businessObject);
     }
   });
 
 
-  return diagramsToLoad;
+  return diagramsToImport;
 }
 
 function selfAndAllFlowElements(elements) {
@@ -195,7 +203,9 @@ function selfAndAllFlowElements(elements) {
     if (!element) {
       return;
     }
+
     result.push(element);
+
     result = result.concat(selfAndAllFlowElements(element.flowElements));
   });
 
@@ -209,6 +219,7 @@ function findRootProcess(element) {
     if (is(parent, 'bpmn:Process')) {
       return parent;
     }
+
     parent = parent.$parent;
   }
 }
\ No newline at end of file