cmi5 client library

A cmi5 client library is available for enabling cmi5 support in content to work with a cmi5 conformant LMS (Learning Management System). The library is available at the following gitHub site:

• https://github.com/adlnet/cmi5-Client-Library

Here are 3 common examples for using the cmi5 client library.

• Hello World
• Simple Completed
• Passed/Failed

Example #1 Hello world

In this scenario, we will implement the bare minimum for a cmi5 enabled AU (content). Launch and exit.

1. Include a reference to the ADL wrapper library. This is available from the ADL Github site

   • See https://github.com/adlnet/xAPIWrapper/tree/master/dist ).

      <script src="Scripts/xapiwrapper.min.js"></script>
     

2. Include a reference to cmi5Controller.js. This is available from the ADL Github site

   • See https://github.com/adlnet/cmi5-Client-Library/tree/master/Examples/Scripts

      <script src="Scripts/cmi5Controller.js"></script>
     

3. Include a reference to cmi5Wrapper.js.

   • See https://github.com/adlnet/cmi5-Client-Library/tree/master/Examples/Scripts

      <script src="Scripts/cmi5Wrapper.js"></script>
     

4. Parse launch parameters passed on the URL Launch line and set properties of the cmi5 controller.

      cmi5Controller.setEndPoint(parse("endpoint")); 
      cmi5Controller.setFetchUrl(parse("fetch")); 
      cmi5Controller.setRegistration(parse("registration")); 
      cmi5Controller.setActivityId(parse("activityid")); 
      cmi5Controller.setActor(parse("actor"));
   

5. Call the cmi5Controller.startUp() method. Two call back functions are passed:

   1. cmi5Ready… This function performs the following:
      • AU initialization functions
      • Issues an Initialized statement (after all initialization functions are completed)

      It is called once the controller has fetched the authorization token, read the State document and the agent Profile.

   2. startUpError…This function handles errors thrown by cmi5Controller.startUp(). This function is called if the startUp() method detects an error.

6. Create the “cmi5Ready” function.

   1. Set Object Identifiers for your AU with cmi5Controller.setObjectProperties(langstring, actitityType, name, description)
      • The langstring used by the AU ( Example: “en-US” )
      • The actitityType (Example: “http://adlnet.gov/expapi/activities/assessment”)
      • The name of the AU (Example: “ADL AU Example 1”)
      • The description of the AU (Example : “This is a sample of an AU.”)

   2. Issue the initialized Statement

      SendStatement("Initialized");
      

7. Create the “startUpError” function.

   • Set your error handling according to your preferences (console, alert, etc)
8. Add reference to FinishAU() in your UI for learner exit event.

Example #2 Simple Completed

In this scenario, the learner views or does all of the relevant activities in an AU presentation and exits.

Steps 1 thru 7 (Same as Example #1)

1. When learner finishes all activities - Send Completed Statement

       SendStatement("Completed");
   

2. Add reference to FinishAU() in your UI for learner exit event.

Example #3 Passed/Failed

In this scenario, the learner will be assessed in a scored activity. The activity has a MasteryScore associated with it from the course structure.

Steps 1 thru 7 (Same as Example #1)

1. Get the MasteryScore

       var score = cmi5Controller.getMasteryScore();
   

2. Assess Learner (Learner performs assessment activity)

3. Judge Score – Based on Score , Send Statement:

      if (score >= cmi5Controller.getMasteryScore()) {
          SendStatement("Passed", score);
      } else {
          SendStatement("Failed", score);
      }
   

4. Add reference to FinishAU() in your UI for learner exit event.