Link Engine/Hypermedia Engine/Link Service - Front-end Requirements

In order for the hypermedia engine to provide functionality such as management of link markers, comments, trails, overviews, filters, forward navigation and backtracking, the front-end should provide the following:

• Tracking the location of objects such as link markers and providing their identifiers to the engine when a link marker is selected.
• Front-end must request from the engine editing permissions for insertions, deletions, and modifications.
• User interface must provide hypermedia prompts.
• When the front-end saves a document with embedded hypermedia objects, the objects should also be saved.