Magento: Attribute feature

Magento Class Instances  and Attribute Value

1. getData = Relevant Data from object
2. getSingleton = If you are using getSingleton you are calling already instance object
3. getModel = Instance of Class Ex: $product = Mage::getModel('catalog/product');
4. getChildHtml = Calling Block of Block of Block
5. $attribute = $_product->getResource()->getAttribute('your_attribute_id'); (Get Attribute Collection) 
6. $attribute->getAttributeType()  (Get Attribute type)
7. $attribute->getFrontendLabel()  (Get Attribute Label)
8. $attribute->getDefaultValue()    (Get Attribute Value)
9. $attribute->getIsVisible()          (Get Attribute is Visible)    
10. $attribute->getIsRequired()      (Get Attribute is Required)