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Layered Framework Execution Protocol Specification

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The document outlines a layered framework execution protocol authored by Wang Jiaocheng. It defines a structured approach for system development, consisting of multiple layers, each with specific roles, input and output requirements, and execution mechanisms. ### Layer Overview: 1. **Business Ecosystem Layer**: Defines the system's position in the commercial environment and compliance boundaries. 2. **System Layer**: Establishes the overall solution's value and shape, detailing system functionalities. 3. **Subsystem Layer**: Plans high-cohesion technical units within the system, focusing on service granularity. 4. **Security Architecture Layer**: Designs a defense-in-depth security system, including threat modeling and privacy controls. 5. **Module Layer**: Constructs independently deliverable business components with defined interfaces. 6. **Package Structure Layer**: Organizes code logic units and manages version control. 7. **Class and Interface Layer**: Decouples domain models from technical implementations. 8. **Method Layer**: Encapsulates atomic business operations while managing cognitive load. 9. **Code Block Layer**: Ensures robustness and consistency of execution units. 10. **Statement Layer**: Guarantees clear and unambiguous code expression. 11. **Expression Layer**: Optimizes the efficiency of underlying logic execution. 12. **Atomic Operation Layer**: Maximizes hardware-level performance through various optimization techniques. ### Advantages of the Framework: - Clear responsibilities for each layer. - Comprehensive coverage from business needs to final code. - Automatic data transmission between layers. - Use of plain text for input and output descriptions. - Independence from specific technology stacks. - Permanent storage of design documents for easy access. - Flexible execution methods, allowing for both individual and complete process development. - Automatic adjustments for performance issues and security settings. - Supports parallel work by teams on different layers. - Isolates modifications to prevent impacts on underlying technology. - Allows for process simplification or addition of new technical steps.

Layered Framework Execution Protocol Specification - Author: Wang Jiao Cheng#

General Execution Protocol#

Input Specification#

Each layer accepts a structured input object, which includes:

  • Specific parameters required by the layer (plain text description)
  • Output content from the previous layer (plain text description)

Output Specification#

Each layer generates a structured output object, which includes:

  • Design document: The deliverables specified by the layer (plain text description)
  • Code snippet: Executable code description (plain text format)
  • Parameters passed to the next layer: Key-value pair data (plain text)

Execution Mechanism#

Layers are connected through output and input objects, forming a coherent workflow.

Layer Definitions#

Level 0: Business Ecosystem Layer#

Positioning: Define the system's positioning and compliance boundaries in the business environment
Refinement Methods:

  1. Identify core stakeholders and their demands
  2. Analyze industry value chain dependencies
  3. Map regulatory and industry standard requirements (GDPR/HIPAA, etc.)
    Input Parameters:
  • Project Name: String
  • Core Business Description: String
  • Stakeholder List: String Array
  • Applicable Regulations List: String Array
    Output Deliverables:
  • Design Document: Business context relationship diagram description, compliance constraint matrix description
  • Code Snippet: Compliance check code template description
    Parameters Passed to Next Layer:
  • Core Business Keywords: String Array
  • Key Constraints List: String Array

Level 1: System Layer#

Positioning: Define the value and form of the overall solution
Refinement Methods:

  1. Extract core business problem-solving paths
  2. Clarify system functional and non-functional boundaries
  3. Design deployment architectures such as hybrid cloud/edge computing
    Input Parameters:
  • Core Business Keywords from L0
  • Key Constraints List from L0
  • Non-functional Requirements: Performance/Availability key-value pairs
  • Deployment Architecture Preference: String
    Output Deliverables:
  • Design Document: Business capability map description, deployment topology diagram description
  • Code Snippet: Infrastructure initialization script description
    Parameters Passed to Next Layer:
  • Core Subsystem List: String Array
  • Deployment Architecture Pattern: String

Level 2: Subsystem Layer#

Positioning: Plan high-cohesion technical units within the system
Refinement Methods:

  1. Divide by domain-driven design (DDD) bounded contexts
  2. Split by service granularity (coarse/fine-grained services)
  3. Group by data physical isolation requirements
    Input Parameters:
  • Core Subsystem List from L1
  • Deployment Architecture Pattern from L1
  • Service Division Principles: String
    Output Deliverables:
  • Design Document: Subsystem interaction sequence diagram description, service level agreement document description
  • Code Snippet: Service definition template description
    Parameters Passed to Next Layer:
  • Key Service Interface Definitions: String Array
  • SLA Metric Requirements: String Array

Level 3: Security Architecture Layer#

Positioning: Design a deep defense security system
Refinement Methods:

  1. Execute STRIDE threat modeling analysis
  2. Design a zero-trust security control chain
  3. Establish privacy data lifecycle management specifications
    Input Parameters:
  • Key Service Interface Definitions from L2
  • SLA Metric Requirements from L2
  • Security Compliance Requirements: String Array
    Output Deliverables:
  • Design Document: Security control matrix description, audit trail mechanism design document description
  • Code Snippet: Security filter configuration description
    Parameters Passed to Next Layer:
  • High-Risk Module List: String Array
  • Privacy Data Processing Specifications: String

Level 4: Module Layer#

Positioning: Build independently deliverable business components
Refinement Methods:

  1. Encapsulate domain logic by business use cases
  2. Set isolation boundaries based on change frequency
  3. Define anti-corruption layer interface contracts between modules
    Input Parameters:
  • High-Risk Module List from L3
  • Privacy Data Processing Specifications from L3
  • Business Use Case Descriptions: String Array
    Output Deliverables:
  • Design Document: Module decoupling assessment report description, interface contract document description
  • Code Snippet: Anti-corruption layer interface definition description
    Parameters Passed to Next Layer:
  • Core Module Interface Definitions: String Array
  • Module Communication Specifications: String

Level 5: Package Structure Layer#

Positioning: Organize code logical units and version control
Refinement Methods:

  1. Layer according to hexagonal architecture pattern
  2. Manage packages by functional characteristics
  3. Design backward and forward compatible version strategies
    Input Parameters:
  • Core Module Interface Definitions from L4
  • Module Communication Specifications from L4
  • Architectural Style: String
    Output Deliverables:
  • Design Document: Package dependency diagram description, API version migration path description
  • Code Snippet: Project structure generation script description
    Parameters Passed to Next Layer:
  • Basic Package Structure: String
  • Version Strategy: String

Level 6: Class and Interface Layer#

Positioning: Achieve domain model and technical decoupling
Refinement Methods:

  1. Identify aggregate roots in domain-driven design
  2. Apply SOLID design abstract interfaces
  3. Separate business logic from infrastructure implementation
    Input Parameters:
  • Basic Package Structure from L5
  • Version Strategy from L5
  • Domain Model Elements: Entity/Value Object List
    Output Deliverables:
  • Design Document: Domain model class diagram description, interface test case set description
  • Code Snippet: Domain entity class definition description
    Parameters Passed to Next Layer:
  • Core Interface Definitions: String Array
  • Domain Model Specifications: String

Level 7: Method Layer#

Positioning: Encapsulate atomic-level business operation units
Refinement Methods:

  1. Control cognitive load of single methods (≤50 lines)
  2. Avoid side effects in functional programming
  3. Precede with defensive parameter validation
    Input Parameters:
  • Core Interface Definitions from L6
  • Domain Model Specifications from L6
  • Core Business Algorithm Formula: String
    Output Deliverables:
  • Design Document: Method cyclomatic complexity heatmap description, golden path testing scheme description
  • Code Snippet: Core business algorithm implementation description
    Parameters Passed to Next Layer:
  • Key Method Signatures: String Array
  • Algorithm Constraints: String Array

Level 8: Code Block Layer#

Positioning: Ensure robustness and consistency of execution units
Refinement Methods:

  1. Precisely control transaction boundaries
  2. Secure resource release in exception handling blocks
  3. Protect critical path assertions
    Input Parameters:
  • Key Method Signatures from L7
  • Algorithm Constraints from L7
  • Transaction Management Requirements: String
    Output Deliverables:
  • Design Document: Transaction deadlock detection report description, resource leak monitoring scheme description
  • Code Snippet: Transaction control code block description
    Parameters Passed to Next Layer:
  • Key Transaction Boundary Definitions: String Array
  • Error Handling Specifications: String

Level 9: Statement Layer#

Positioning: Ensure code expression is clear and unambiguous
Refinement Methods:

  1. Single line single semantics principle
  2. Disable implicit type conversion
  3. Enforce the use of null-safe operators
    Input Parameters:
  • Key Transaction Boundary Definitions from L8
  • Error Handling Specifications from L8
  • Coding Standards: String Array
    Output Deliverables:
  • Design Document: Static scanning rule set description, side effect statement list description
  • Code Snippet: Defensive programming example description
    Parameters Passed to Next Layer:
  • Performance Hotspot List: String Array
  • Code Style Rules: String Array

Level 10: Expression Layer#

Positioning: Optimize the execution efficiency of underlying logic
Refinement Methods:

  1. Control operator complexity circuit breakers
  2. Limit depth of chained calls
  3. Manage Lambda closure states
    Input Parameters:
  • Performance Hotspot List from L9
  • Code Style Rules from L9
  • Optimization Goals: String Array
    Output Deliverables:
  • Design Document: Expression performance scorecard description, refactoring suggestion knowledge base description
  • Code Snippet: Optimized core expression description
    Parameters Passed to Next Layer:
  • Hardware Optimization Suggestions: String Array
  • Key Performance Indicators: String Array

Level 11: Atomic Operation Layer#

Positioning: Extract extreme performance at the hardware level
Refinement Methods:

  1. Optimize CPU instruction pipeline
  2. Tune cache prefetch strategies
  3. Apply vectorized instruction sets
    Input Parameters:
  • Hardware Optimization Suggestions from L10
  • Key Performance Indicators from L10
  • Hardware Platform Description: String
    Output Deliverables:
  • Design Document: Instruction-level time consumption analysis description, platform adaptation guide description
  • Code Snippet: Hardware acceleration code description
  • Final Project Code: Complete codebase description

Framework Advantages#

  1. Clear layered responsibilities: Each layer is responsible for specific tasks, with clear input and output standards.
  2. Full process coverage: The entire process is seamlessly connected from business requirements to final code.
  3. Automatic data transfer: Key information such as security requirements is automatically passed to subsequent stages.
  4. Plain text universality: All inputs and outputs are described in simple text.
  5. No dependency on technology stack: Programming languages and tools can be freely chosen.
  6. Records can be viewed at any time: Design documents and settings for each stage are permanently saved.
  7. Flexible execution methods: Development can be done in single stages or automatically follow the complete process.
  8. Protective automatic linkage: Security settings automatically associate with resource and module management.
  9. Automatic problem tuning: Performance issues are automatically adjusted in design.
  10. Parallel team work: Multiple groups can simultaneously handle different stages.
  11. Modification impact isolation: Business adjustments do not affect underlying technical implementations.
  12. Flexible process scaling: Steps can be simplified or new technical stages added.
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