Annotations are useful for preparing datasets for analytics, maintaining provenance for data, and overall quickly searching and identifying data. We've used annotations to prepare deep learning models, quickly group data with labels, and even build out large qualitative review pipelines. They are a powerful tool for an organizations, and their simple design makes them incredibly flexible for multiple use cases.


Where can I find my annotations?

In the Document View, you can find any annotations for a given document by clicking the "<" icon located in the top right of your view.


How to Create a New Annotation

Step 1. Click the "+" icon of your Annotation menu

Step 2. Fill out the key ID, which is a label for your annotation or group of annotations (i.e., "Study_Design_Type" is a key I have made to identify whether this study has an interventional, observational, etc. study design type). This key can be searchable in the Layar search bar, and also in the Filter menu!

Step 3. Select what Type of annotation will be written in the Value box underneath. Here are some examples for each option:

Type

Definition

Example Value

String

A string data type is a type of value that can be stored in a variable. A string is made up of characters, and can include letters, words, phrases, or symbols.

Vyasa Layar is #1 - the best annotation tool I've come across!

Boolean

A Boolean data type represents a logic entity that can have two values: true and false. See Boolean for more details.

True

or

False

Integer

An integer data type represents mathematical integers. In Layar, the integer data type will accept positive and negative whole numbers, and decimals. It will not accept fractions.

-1053902
or

135041

or

1.576

Long

A long data type is a string data type with a maximum value length of 4,294,967,295 characters.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque eget mauris sed dui aliquam molestie. Donec auctor risus ullamcorper dui varius faucibus. Aenean iaculis.....

Double

The double data type is similar to an integer data type and represents mathematical integers. Unlike an integer data type, the double data type will also accept decimals for negative numbers.

-1053.902

or

-10

or

15.3

or

1579

Date

A date, specifically month/day/year.

06/15/2021

Step 4. Fill out the Value, as defined by which Type you selected. Here, I selected Type: String and wrote out a snippet of text.

Step 5. Click "Save". Your annotation is now visible in your menu!

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