Annotations are comments, notes, explanations, or other types of external remarks that can be attached to a Web document or to a selected part of a document. As they are external, it is possible to annotate any Web document independently, without needing to edit the document itself.

A classic real-world example of document annotation would be locating the number of instances of the value 'city,' in a novel. With document annotation, you can scan through paragraphs of texts and find the frequency of that field.

An annotation might look like highlighting information information or vocabulary in a text, marking a text with symbols to represent different ideas, creating notes in the margins of a text to keep track of thoughts and questions, or writing summaries at the end of a chapter or section for easy review.

How do I add annotations to logfiles? You will notice when you open a log file there are small lights next to each line number in the log. When you click on one of these, a bubble will appear over the line that allows you to type your comments directly into the file.

Number annotations reduce text by adding numbered circles to your screenshot. They allow you to highlight a sequence of steps someone needs to take, prioritizing issues to tackle, with or without any text. As you add number annotations to your content, the numbers automatically increase in order.

Annotation is a unique flag that you can attach to the log records. It's composed with a descriptive message and an identifier consisting of a string which may contain spaces and special characters. The annotations enable you to triage the issues by adding the information about the log records.

Amount of Annotations: Though every text is different, an average of 2 annotations per page is a good goal to have (this guideline is an “average”, so it might be that some pages have no annotations and others have something like 4-5). Much more than that, and it might be hard to see things that stand out.