---
title: "Access Control Module"
industry: "Computer, Electronic and Optical Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:ACCESS_CONTROL_MODULE"
  data_integrity_hash: "9287e0412f208d01f38bbfc93913e39d"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:ACCESS_CONTROL_MODULE"
  data_source_uri: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/access-control-module.md"
  official_resource_url: "https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/access-control-module"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-1000 concurrent user sessions, 1-10000 permission checks/second"
    unit: "users"
engineering_limits:
  max_safe_operating_point:
    value: 30
    unit: "seconds"
    consequence: "Resource exhaustion due to unbounded permission inheritance depth exceeding 20 levels, causing exponential computational complexity O(2^n)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Race condition during concurrent permission updates from multiple administrator sessions"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implement optimistic locking with version stamps and atomic CAS operations for all ACL modifications"
  - node_2:
      trigger: "Memory leak in permission cache eviction algorithm under LRU policy"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Replace LRU with time-decay weighted cache with forced eviction at 75% capacity, implementing reference queue monitoring"
bom_nodes:
  authentication-engine:
    type: "part"
    urn: "URN:CNFX:ME:AUTHENTICATION_ENGINE"
    interface_type: "physical-logic-coupled"
  authorization-database:
    type: "component"
    urn: "URN:CNFX:ME:AUTHORIZATION_DATABASE"
    interface_type: "physical-logic-coupled"
  policy-enforcement-point:
    type: "part"
    urn: "URN:CNFX:ME:POLICY_ENFORCEMENT_POINT"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO/IEC 27001:2022 - INFORMATION SECURITY, CYBERSECURITY AND PRIVACY PROTECTION"
    scope: "Verified Engineering Specification"
  - standard: "ANSI/BHMA A156.10-2017 - POWER-OPERATED DOORS"
    scope: "Verified Engineering Specification"
  - standard: "EN 50133-1:2020 - ALARM SYSTEMS - ACCESS CONTROL SYSTEMS FOR USE IN SECURITY APPLICATIONS"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/access-control-module.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "a1d8465268253a16657cf9bc9439d5c876a046ee85539f6fab848dc1d30a1774"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Access Control Module

## 1. Technical Definition
A software component within a File Manager system that manages user permissions and access rights to files and directories.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-1000 concurrent user sessions, 1-10000 permission checks/second**. Failure boundary: **CPU utilization exceeding 95% for &gt;30 seconds, memory usage &gt;90% of allocated 8GB RAM**, Mechanism: **Resource exhaustion due to unbounded permission inheritance depth exceeding 20 levels, causing exponential computational complexity O(2^n)**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Race condition during concurrent permission updates from multiple administrator sessions | 8 | Access control list corruption leading to privilege escalation vulnerabilities | Implement optimistic locking with version stamps and atomic CAS operations for all ACL modifications |
| Memory leak in permission cache eviction algorithm under LRU policy | 8 | Heap exhaustion at 7.5GB threshold causing OutOfMemoryError and service termination | Replace LRU with time-decay weighted cache with forced eviction at 75% capacity, implementing reference queue monitoring |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | users | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Authentication Engine](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/authentication-engine.md) `(Standalone System)`
- [Policy Enforcement Point](https://cnfx.com/llms/industry/computer-electronic-and-optical-product-manufacturing/product/policy-enforcement-point.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **File Management System Server**, **Database Management System**, **Network Security Infrastructure**  
**Downstream Applications**: Secure File Management Systems, Enterprise Content Management Platforms, Compliance Management Software  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What is the primary function of this Access Control Module?
**A**: The Access Control Module manages user permissions and access rights to files and directories within a File Manager system, ensuring only authorized users can access specific data based on predefined policies.

### Q: How does this module integrate with existing File Manager systems?
**A**: The module integrates through standard APIs and interfaces with the Authentication Engine, Authorization Database, and Policy Enforcement Point components, providing seamless permission management without disrupting existing workflows.

### Q: What industries benefit most from this Access Control Module?
**A**: Computer, Electronic and Optical Product Manufacturing industries benefit significantly as they handle sensitive design files, proprietary software code, and confidential documentation requiring strict access control and compliance with security standards.

## 6. Manufacturing Compliance
- ISO/IEC 27001:2022 - INFORMATION SECURITY, CYBERSECURITY AND PRIVACY PROTECTION
- ANSI/BHMA A156.10-2017 - POWER-OPERATED DOORS
- EN 50133-1:2020 - ALARM SYSTEMS - ACCESS CONTROL SYSTEMS FOR USE IN SECURITY APPLICATIONS

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Access Control Module](https://cnfx.com/industry/computer-electronic-and-optical-product-manufacturing/product/access-control-module)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: ACCESS_CONTROL_MODULE | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: eeee2c05
