Federated Whiteboard Segmentation for Secure Collaboration
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Solution Overview
Problem
Digital whiteboards in distributed collaboration systems face challenges in coordinating multiple users' interactions, ensuring security, and maintaining concurrency and flexibility of expression, especially when confidential collaboration data is accessed by authorized users across different locations.
Innovation Solution
A collaboration system with distributed digital whiteboards managed by a shared collaboration server, enabling real-time data exchange and user input while ensuring security through authorized access, using drawing regions to differentiate user inputs and employing federated displays for unified interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple users access collaboration data through distributed whiteboards simultaneously, then real-time collaboration and flexibility of expression are improved, but security control and concurrency management become more difficult
Solution Approach 1:
The system segments the whiteboard surface into multiple drawing regions, each assigned to specific users or user groups. This segmentation enables fine-grained security control where different users can access and modify only their designated regions, while still allowing simultaneous collaboration across the entire whiteboard surface.
Solution Approach 2:
Different security policies and access controls are applied to different regions of the whiteboard. Each drawing region can have its own authorization rules, allowing the system to provide tailored security control for different parts of the collaboration space while maintaining overall system security.
2Ease of operation
If distributed whiteboards are used across multiple locations, then accessibility and collaboration flexibility are improved, but coordination of user interactions and data consistency become more difficult
Solution Approach 1:
Multiple distributed whiteboards are merged into a unified collaboration space through the federated display system. The system combines inputs from multiple locations and devices, coordinating user interactions centrally while allowing local flexibility, thus reducing the perceived complexity for users.
Solution Approach 2:
The system introduces a central coordination mechanism that acts as an intermediary between distributed whiteboards. This mediator manages data consistency, coordinates user interactions, and synchronizes state across multiple locations, simplifying the complexity of distributed coordination for end users.
3Area of stationary object
If a single large whiteboard is used for multiple users, then simultaneous interaction space is improved, but user privacy and controlled access to specific content become more difficult
Solution Approach 1:
The large whiteboard surface is divided into multiple drawing regions that can be independently accessed and controlled. This segmentation allows different users or groups to have exclusive access to specific regions while maintaining privacy, yet still provides a large overall interaction space for simultaneous collaboration.
Solution Approach 2:
The system adds a spatial dimension to access control by organizing the whiteboard into a two-dimensional grid of drawing regions. This allows controlled access to be implemented through spatial separation rather than requiring multiple separate whiteboards, thus maintaining large interaction space while enabling fine-grained access control.
Data Source
AI summary
A system for whiteboard collaboration utilizes an array of displays for a whiteboard canvas. The displays in the array being coupled with a computer system having a communication module and memory storing collaboration data for at least one collaboration having a collaboration space. The array has a display area mapped to corresponding area in the collaboration space. The collaboration data includes data structures identifying displayable objects and associating a location in the collaboration space with the objects identified by the data structures. The computer system includes a display client for each display in the array. Each display client is configured to manage display of a predetermined portion of the display area, and for receiving and transmitting messages related to global collaboration events and for receiving and transmitting messages related to local array events.