The following video (which is short) explains metadata in pictures: https://youtu.be/L0vOg18ncWE
In words, metada is information (data) about other information (data). For example, the location that you took a picture on your phone, will be attached the picture file.
There are a couple different sub-types of metadata, but we will work with descriptive meta-data and structural metadata.
To understand this terms, I’m going to use a mix of world history examples.
Consider our letter for this week. What Busbecq says in his letter is the data, but all the information that might allow us to find the letter in a search is the metadata. This includes:
When the letter was written.
Where the letter was written.
To whom the letter was written.
What people, places, things, or ideas are mentioned in the letter.
Where is the letter published on the web?
What other sources have related subjects, such as the Ottoman empire or the 16th century?
What is the URL of the letter.
Descriptive metadata tells us about the data itself, what it is. In this example, it tells us more about the letter. Structural metadata tells us how the data relates to other information (data). So, if we were to attach metadata value of “16th century” and “letter” to this letter, you could then also search for all the other 16th century letters at the Internet History Sourcebook.
Technically speaking, the value “16th century” is descriptive and the value “century” is structural as “century” would be the organizing label for all different centuries in which letters where written.
For history, all of your digital sources are organized by metadata. When you can’t find what your are looking for, often it is because metadata hasn’t been set up correctly, making your search engine look for specific words within the source itself, otherwise known as full-text search.
In your wider world, all the digital world is organized by metadata, including your computer and phone. Consider this section of my music library. The specific name, time, and artist are all descriptive metadata, telling me what the actual data is. The Genre and Album are structural metadata, telling me how these songs relate to each other and to other songs in my music library.
Imagine if the names to all the songs were (Track 1, Track 2, Track 3). The music would all be there (the data) but figuring out what song I was about to hear would be challenging.
This is why we call metadata “a love letter to the future.” When something is created, the creator knows what it is. But without proper metadata, finding it for future generations is challenging.
Student will complete Lesson 5 of Check Please.
Student will choose an article from the Gale Virtual Reference Library (through our library web page – http://www.normandale.edu/library/find-resources/article-databases-and-more/databases—g – with metadata that matches to our readings for the week.
Student will create a list of metadata values to describe and structure the reading they chose.
Students will write a paragraph describing why they chose the metadata they did and how their article relates.
Student will post their list and paragraph to Experiment 3.