Notebook Page Lock Mechanism for Unauthorized Edit Prevention

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Solution Overview

Problem

In notebook applications, students can easily modify or erase teacher feedback after a deadline, requiring teachers to manually copy and transfer documents to prevent unauthorized changes, which is cumbersome and error-prone.

Innovation Solution

Implementing a page lock feature that allows teachers to set a timing parameter to disable write permissions for students, ensuring that changes cannot be made after a specific date or event, even if the student is offline, and optionally re-enabling permissions later for revisions based on further feedback.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the entire document is copied to a separate folder to prevent student changes, then the document security is improved, but the device complexity and ease of operation deteriorate due to additional manual steps and potential errors

Engineering Contradiction:
Improvedocument securityVSAvoidoperation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the permission control mechanism from the document itself and implements it as a separate page lock feature within the notebook application. This allows the document to remain in its original location while security is enforced through a dedicated locking mechanism that independently controls access permissions.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an intermediary permission control system that mediates between the document and student access. The page lock feature acts as a mediator that can selectively enable or disable write permissions without requiring physical document movement, thereby maintaining security while simplifying operations.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If manual copying and transfer of documents is required to prevent changes, then the document security is improved, but the loss of time increases due to additional manual steps

Engineering Contradiction:
Improvedocument securityVSAvoidtime for document management
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent implements preliminary action by allowing teachers to set page locks in advance with scheduled timing parameters. The lock can be configured to activate automatically at a specified future date or time, eliminating the need for manual intervention at the moment security is needed and reducing overall time investment.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent enables self-service through automated permission management. The system automatically enforces the lock based on pre-configured timing parameters without requiring manual copying or transfer operations. The notebook application itself manages the security enforcement, freeing the teacher from repetitive manual tasks.

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If the document is copied to a separate folder to prevent unauthorized changes, then the manufacturing precision is improved, but the ease of operation deteriorates due to additional manual steps

Engineering Contradiction:
Improvepermission control precisionVSAvoiddocument access simplicity
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The patent applies local quality by implementing permission control at the page level rather than requiring complete document copying. The lock can be applied to specific pages or sections within the notebook, allowing precise control over which content is protected while maintaining easy access to other unprotected areas.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS10708275B2Page lock for notebook application
Publication Date: 2020.07.07 MICROSOFT TECHNOLOGY LICENSING LLC
  • US10708275B2 patent drawing
  • US10708275B2 patent drawing
  • US10708275B2 patent drawing

AI summary

Notebook applications may be employed to create, edit, and/or share collaborative documents. In a classroom setting, a notebook application may enable interactivity among a teacher and students. A page lock may be provided for the notebook application to prevent students from making unauthorized changes, such as editing a page after an assignment deadline or erasing teacher feedback, while still enabling the teacher read and write capabilities. For example, a notebook page may be rendered with read and write permissions for the teacher and student(s). The teacher may be provided an option to set a lock on the page to disable one or more of the students' write permissions. The teacher may select a first timing parameter associated with setting the lock, which defines a future date and time or event to trigger the disabling of the students' write permissions. The lock may be set based on the first timing parameter.