text: // load the things we need
  var mongoose = require('mongoose');
  
  // os: { name: 'Windows NT', version: '10.0', arch: 'x86_64' },
  // project: { name: 'FastoNoSQL', version: '1.16.2.0', arch: 'x86_64', owner: '123',  exec_count: 187 }
  
  var ProjectSchema = require('./project');
  var OperationSystemSchema = require('./operation_system');
  
  // define the schema for our programme model
  var StatisticSchema = mongoose.Schema({
      created_date: {type: Date, default: Date.now},
      os: OperationSystemSchema,
      project: ProjectSchema
  });
  
  // create the model for statistics and expose it to our app
  module.exports = StatisticSchema;
  
  
  