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Digital Security and Data Management (DSDM) Department
Software Reference Architecture (SRA)
Enterprise Reference Architecture and Systems Design Framework

Architecture Overview

This project defines an enterprise-level Software Reference Architecture (SRA) for the Digital Security and Data Management (DSDM) department. The SRA establishes standardized architectural guidance governing how software systems are designed, secured, and structured across the organization.

The work demonstrates the ability to gather regulatory, technical, and organizational requirements and synthesize them into a cohesive architectural framework. The portfolio page serves as an overview; the full report is provided as the authoritative artifact.

Purpose & Scope

The purpose of the Software Reference Architecture is to:

  • Provide a consistent architectural foundation for all DSDM-managed systems

  • Reduce architectural drift across independently developed applications

  • Align system design with federal security, accessibility, and governance requirements

  • Establish reusable patterns and mandatory architectural positions

The scope is department-wide, focusing on architecture definition rather than system implementation.

Architectural Focus Areas

The architecture addresses:

  • System decomposition and responsibility boundaries

  • Service interaction and data flow models

  • Authentication, authorization, and trust boundaries

  • Deployment and infrastructure considerations

  • Interoperability across heterogeneous systems

All architectural decisions are expressed through formal models and diagrams contained in the full report.

Compliance & Governance Context

Security and compliance are foundational to the architecture rather than add-on concerns. The SRA incorporates federal requirements directly into architectural constraints and system design expectations.

 

The architecture aligns with and supports compliance for:

  • FISMA (Federal Information Security Management Act)

  • NIST SP 800-53 security controls

  • FedRAMP cloud security requirements

  • FOIA data handling obligations

  • Section 508 accessibility standards

 

Security principles enforced by the architecture include:

  • Defense-in-depth

  • Least privilege

  • Strong identity and access management

  • Auditable system behavior

  • Secure data handling at rest and in transit

Supporting Documentation

This project is supported by a comprehensive Software Reference Architecture report, which contains all architectural models, diagrams, compliance mappings, and deployment views. The portfolio entry serves as an architectural overview; the full report is provided for detailed review.

Outcome & Architectural Significance

This project demonstrates the ability to:

  • Elicit and formalize architectural requirements

  • Produce enterprise-scale reference architectures

  • Translate regulatory and operational constraints into concrete architectural guidance

  • Communicate complex system structure through formal documentation

The result is a clear example of architecture as a discipline, distinct from application development and focused on long-term system governance.

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