Group items tagged

omits details that we are unable to capture at this point

Each document has an id

Each wavelet is a container for any number of documents.

Each item has a key-value map of annotations.

to represent text formatting, spelling suggestions and hyper-links

independent of the XML document structure

A document is a sequence of items

is composed of an XML document and a set of annotations.

Annotation keys and values are strings

each item conceptually has its own annotation map

more efficient to have just one annotation map for each consecutive run of items with the same annotations

current annotations update, which is a map of annotation keys to pairs (old-value, new-value), where old-value and new-value are either null or an annotation value

After the final component, the annotations update must be empty

Document operation components can be divided into four classes

do not directly affect the document or the cursor

annotation boundaries (annotationBoundary) change the current annotations update

message AnnotationBoundary { // This field is set to true if and only if both ends and changes are // empty. It is needed to ensure that the optional annotationBoundary // component field is not dropped during serialization. optional bool empty = 1; // MUST NOT have the same string twice. repeated string end = 2; // MUST NOT have two updates with the same key. MUST NOT // contain any of the strings listed in the 'end' field. repeated KeyValueUpdate change = 3; }

optional AnnotationBoundary annotationBoundary = 1; optional string characters = 2; optional ElementStart elementStart = 3; optional bool elementEnd = 4; optional int32 retainItemCount = 5; optional string deleteCharacters = 6; optional ElementStart deleteElementStart = 7; optional bool deleteElementEnd = 8; optional ReplaceAttributes replaceAttributes = 9; optional UpdateAttributes updateAttributes = 10;

install and run a text-annotation Web service

rights are defined

can be specialized for each text

AJAX Web interface for displaying annotated texts

and for interactive annotation, commenting and discussion

Django

PostgreSQL or MySQL

Use the “Save” option to bookmark a page. Bookmarking saves a link to the page in your online Diigo library, allowing you to easily access it later.

Highlighting can also be accomplished from the context pop-up. After the Chrome extension is installed, whenever you select text on a webpage, the context pop-up will appear, allowing you to accomplish text-related annotation. Highlight Pop-up Menu – After you highlight some text, position your mouse cursor over it and the highlight pop-up menu will appear. The highlight pop-up menu allows you to add notes to, share, or delete the highlight.

Sticky Note Click the middle icon on the annotation toolbar to add a sticky note to the page. With a sticky note, you can write your thoughts anywhere on a web page.