Multi-tenant SaaS Deployment with Tenant-Specific Isolation Constraints

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Solution Overview

Problem

In Software-as-a-Service (SaaS) multi-tenancy applications, customers are hesitant to share infrastructure or data with other tenants due to concerns about data security and access risks, which existing isolation methods have not adequately addressed.

Innovation Solution

A computer-implemented method that categorizes tenants into groups, allowing each tenant to specify deployment constraints for application components and infrastructure, enabling them to include or exclude other tenants from sharing resources, and determines a valid deployment configuration based on these constraints to optimize resource utilization and security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multi-tenancy is implemented to share infrastructure and application code among multiple tenants, then operational costs are reduced and resource utilization is improved, but data security and tenant isolation are compromised due to shared infrastructure risks

Engineering Contradiction:
Improveresource utilization efficiencyVSAvoiddata security
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent segments the multi-tenancy architecture into multiple isolation levels: infrastructure sharing (virtualization layer), application component sharing (with deployment constraints), and data isolation (with tenant-specific configurations). This segmentation allows simultaneous resource sharing and security protection by dividing the system into manageable isolation zones.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by allowing different tenants to have different deployment constraints and isolation requirements for different application components. Each tenant can specify which components should be shared and which should be isolated, enabling customized security levels for different parts of the system rather than uniform isolation across all components.

Inventive Principle:
Principle #3Local quality

2Reliability

If strict tenant isolation is implemented to ensure data security, then reliability is improved, but resource utilization efficiency deteriorates due to duplicate infrastructure requirements

Engineering Contradiction:
Improvedata securityVSAvoidresource utilization efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent introduces dynamic deployment constraints that allow tenants to adjust their isolation requirements based on security needs and component sensitivity. The system dynamically determines valid deployment configurations that optimize resource sharing while meeting security requirements, rather than using static isolation rules.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of tenant isolation from a binary state (isolated or shared) to a configurable spectrum of isolation levels. Tenants can specify deployment constraints that control the degree of sharing for different application components, allowing optimization of both security and resource utilization through parameter adjustment.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If tenants are allowed to exclude specific groups from sharing application components, then data security is improved, but device complexity increases due to constraint management overhead

Engineering Contradiction:
Improvedata securityVSAvoiddeployment constraint management
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements self-service by allowing tenants to autonomously define their own deployment constraints and exclusion rules for different application components. Each tenant can independently configure which groups should be excluded from sharing specific components, without requiring manual system administrator intervention for constraint management.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent incorporates feedback mechanisms where the system automatically validates deployment constraints against security policies and resource availability. The constraint determination process provides feedback to tenants about valid configurations, helping them manage complex security requirements without overwhelming manual intervention.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS9639338B2Computer-implemented method, system and computer program product for deploying an application on a computing resource
Publication Date: 2017.05.02 DEUTSCHE TELEKOM AG
  • US9639338B2 patent drawing
  • US9639338B2 patent drawing
  • US9639338B2 patent drawing

AI summary

A computer-implemented method for deploying an application on a computing resource includes: defining sets of groups of tenants for categorizing the plurality of tenants; assigning each tenant to at least one group of tenants; providing a deployment model for each combination of an application component of the plurality of application components and a tenant; determining constraint information for each combination of application component and tenant depending on the deployment model, wherein the deployment model is configured to enable each tenant to include and/or exclude entire groups of tenants from sharing one or more application components and/or infrastructure of the computing resource; determining a valid deployment configuration of the application depending on the constraint information associated with each application component; and deploying the application on the computing resource accordingly.