1. Structured Data Markup Helper

2. Markup Helper Give the URL of the entity that we want to annotate
Tag the data on the webpage by filling in a form of terms
View the result with the annotations in HTML

3. Webpage URL

4. Tag the data

5. Tag the data

6. Creat HTML

7. Pros & Cons
Pros:
It’s a visual tool  it’s very easy to use
No need for learning about how to implement the correct markup
Cons:
The selection of data types is very limited
A few properties are difficult to tag (like the in our example)
The range of websites that can be annotated is limited
Training of the users to understand the structured data is not promoted

8. References
[1] Google Markup Helper: