Title
Enforcing entailment constraints in offline editing scenarios for real-time collaborative web documents
Abstract
Real-time collaborative Web applications allow a multitude of users to concurrently work on a shared document. Especially in business contexts it is often necessary to be able to precisely define and restrict who is allowed to edit which data field of such a shared document. Existing solutions for enforcing such access control restrictions typically rely on a central service, the policy decision point. However, for use cases with unreliable or limited connectivity, such as mobile devices, a permanent connection to this centralized policy decision point can not be guaranteed. To address this problem, we present a novel approach that includes methods for client-side enforcement of access control constraints for offline users, and merging of offline changes, that enables users to edit such access constrained shared documents offline. We propose a generic conflict detection and resolution approach that attempts to resolve merge conflicts that are inherent to access constrained documents automatically while prioritizing online users and maximizing the number of filled out data fields in a document. In addition, we discuss and evaluate our approach via a prototype implementation.
Year
DOI
Venue
2014
10.1145/2554850.2554976
SAC
Keywords
Field
DocType
design tools and techniques,access control enforcement,authorization,general,conflict detection,document merge,conflict resolution
Data field,World Wide Web,Use case,Information retrieval,Computer science,Conflict resolution,Mobile device,Enforcement,Access control,Web application,restrict
Conference
Citations 
PageRank 
References 
1
0.36
17
Authors
4
Name
Order
Citations
PageRank
Patrick Gaubatz1383.43
Waldemar Hummer244227.64
Uwe Zdun31429148.33
Mark Strembeck487457.86