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+# Adding New Chart Library
+**Global Chart Factory** have generic chart model and each chart library have it is own factory. Therefore when you adding new chart library you have to extended the Global Chart Factory.
+
+##Pre-request
+Need to add new JS charting library for the project or application.
+
+ * `bower install <library name> --save`
+
+This command update your bower.json and index html
+
+##Steps 
+1. Create a new factory inside the **chart-factory** with extending Global Chart Factory.
+
+```javascript
+angular.module('apacheZeppelinGsocApp').factory('MyNewChartFactory', function(
+  ChartFactory) {
+
+  //extending common chart model
+  var MyNewChartFactory = new ChartFactory('NewChartLibraryName', newChart);
+
+  //To-Do Implement or add new chart 
+});
+```
+1.1. Supporting chart types need to define in ChartList array as below
+```javascript
+var ChartList = {
+  'Bar': 'BarChart',
+  'Line': 'LineChart'
+};
+```
+1.2. Develop the rest of method you need from you charting library
+
+2. Factories are expose from **ChartService**. Therefore you can add new services (only one method) that is using new factory.
+
+```javascript
+  this.getNewChart = function(chartType) {
+    var myChart = MyNewChartFactory;
+    myChart.setChartType(chartType);
+    return myChart;
+  };  
+```
+
+3. Update the configure file for new chart library. Update 'libraryName' as below. Add template for views
+
+```javascript
+  'library': 'highChart',
+  'service': 'getHighChart',
+  'template': 'views/charts/highchart.html'
+```
+
+Run
+ * `npm install` first, If you hav not run it before.
+ * `bower install` will download new library for application.
+
+### Build the application
+
+`./grunt build`
+
+Run `grunt build` for building 
+
+### Preview Web application
+
+`./grunt serve` 
+
+This will launch a WebApplication on port **9000** and update on code changes.
+
+### Testing
+
+`./grunt test` 
+