title: Create an aspect in Alfresco Content Model
body: <p>I am starting currently using Alfresco CMS. I need to create an "aspect" in my content model which must contains a number of properties as:</p>
  
  <pre><code>Aspect: 
      property 1 : String
      property 2 : int
      property 3 : int
      property 4 : long
  </code></pre>
  
  <p>Moreover it must contains two more properties which are composed either of number of properties as:</p>
  
  <pre><code>Format: 
     FormatProperty1: int
     FormatProperty2: int
     FormatProperty3: int
  
  Metadata:
     list1: List&lt;String&gt;
     list2: List&lt;String&gt;
     MetadataProperty 3: boolean
  </code></pre>
  
  <p>I have not yet created neither a simple content model nor an aspect in Alfresco. Based on my previous knowledge in Relational Databases I perceive the above structure as association between tables. How can I carry out that in Alfresco content model with an aspect or more? </p>