nasa-se-methodology

NASA SE Methodology for Cloud Operations

This skill maps NASA's SE Engine (17 common technical processes from NPR 7123.1) to cloud infrastructure operations. It provides the intellectual framework for the GSD OpenStack Cloud Platform project. Every document, procedure, and verification traces back to this methodology.

The SE Engine defines how engineering work is performed. The lifecycle phases define when. Together they ensure that cloud infrastructure is built with the same disciplined process NASA applies to spacecraft.

SE Engine Process Groups

System Design Processes (1-4)

| # | Process | SP-6105 | Cloud Operations Equivalent | |---|---------|---------|----------------------------| | 1 | Stakeholder Expectations Definition | SS 4.1 | Identify cloud consumers (developers, operators, security team, management) and capture service level expectations for uptime, performance, capacity, and security posture | | 2 | Technical Requirements Definition | SS 4.2 | Transform expectations into "shall" statements for each OpenStack service: functional capabilities, API response times, concurrent users, hardware constraints | | 3 | Logical Decomposition | SS 4.3 | Map cloud requirements to OpenStack services (compute to Nova, network to Neutron, storage to Cinder) and define service interaction architecture | | 4 | Design Solution Definition | SS 4.4 | Conduct trade studies (Kolla-Ansible vs DevStack, OVS vs OVN, LVM vs Ceph), select preferred design, produce configuration specifications |

Product Realization Processes (5-9)

| # | Process | SP-6105 | Cloud Operations Equivalent | |---|---------|---------|----------------------------| | 5 | Product Implementation | SS 5.1 | Deploy OpenStack services via Kolla-Ansible, validate container versions, verify configurations against requirements | | 6 | Product Integration | SS 5.2 | Wire Keystone to Nova to Neutron to Cinder into a functioning cloud following dependency order, validate cross-service interfaces | | 7 | Product Verification | SS 5.3 | Prove each service conforms to requirements using TAID methods: API tests, log analysis, configuration inspection, operational demonstrations | | 8 | Product Validation | SS 5.4 | Confirm cloud works for intended users under realistic conditions: real workloads, real users, real network traffic | | 9 | Product Transition | SS 5.5 | Hand off from deployment crew to operations crew with verified ops manuals, runbooks, monitoring dashboards, and trained operators |

Technical Management Processes (10-17)

| # | Process | SP-6105 | Cloud Operations Equivalent | |---|---------|---------|----------------------------| | 10 | Technical Planning | SS 6.1 | Cloud Engineering Management Plan: how the cloud is built, maintained, and evolved | | 11 | Requirements Management | SS 6.2 | Track requirements changes, maintain traceability from stakeholder needs through tests | | 12 | Interface Management | SS 6.3 | Service API contracts, network interfaces, storage interfaces between OpenStack components | | 13 | Technical Risk Management | SS 6.4 | Identify risks (hardware failure, network partition, security breach) and define mitigation plans | | 14 | Configuration Management | SS 6.5 | Git-controlled configs, change control process, baseline management for all OpenStack settings | | 15 | Technical Data Management | SS 6.6 | Documentation standards, archive strategy, access control for operational data | | 16 | Technical Assessment | SS 6.7 | Life-cycle reviews, progress tracking, cloud health monitoring against baselines | | 17 | Decision Analysis | SS 6.8 | Formal decision records for every design trade-off with alternatives evaluated and rationale documented |

Lifecycle Phase Mapping

Pre-Phase A: Concept Studies -- Cloud Architecture Assessment

• SP-6105 Reference: Section 4.1
• NPR 7123.1 Reference: Section 4.1
• Cloud Equivalent: Assess feasibility of proposed cloud architecture against available hardware, identify stakeholders, define Measures of Effectiveness
• Key Activities:
• Identify all cloud consumers and their service level expectations
• Conduct hardware inventory and resource assessment
• Develop Cloud Architecture Overview (ConOps)
• Classify project risk level (Type C-D per SP-6105 SS 3.11)
• Define Measures of Effectiveness (instance launch time, API availability, storage IOPS)
• Deliverables: Cloud Architecture Overview (ConOps), Stakeholder Register, Feasibility Assessment, Risk Classification
• Review Gate: MCR (Mission Concept Review) / Cloud Architecture Review
• Phase Gate Criteria:
• All stakeholders identified with documented expectations
• Hardware inventory complete with resource sufficiency confirmed
• ConOps reviewed and approved by stakeholders
• Risk classification documented with tailoring rationale

Phase A: Concept and Technology Development -- Technology Selection and Requirements

• SP-6105 Reference: Section 4.2
• NPR 7123.1 Reference: Section 4.2
• Cloud Equivalent: Select deployment technology (Kolla-Ansible), define system-level requirements, establish architecture baseline
• Key Activities:
• Assess deployment technologies (Kolla-Ansible vs DevStack vs manual)
• Define functional and performance requirements for each service
• Establish architecture definition (single-node vs multi-node, HA vs lab)
• Baseline the Systems Engineering Management Plan (SEMP)
• Establish requirements traceability
• Deliverables: Cloud Requirements Document, SEMP Baseline, Technology Assessment Report, Architecture Definition
• Review Gate: SRR (System Requirements Review) / Requirements Baseline Review
• Phase Gate Criteria:
• All requirements captured as traceable "shall" statements
• Deployment technology selected with documented trade study
• SEMP baselined and approved
• Requirements traceability matrix initialized

Phase B: Preliminary Design and Technology Completion -- Architecture and Configuration Design

• SP-6105 Reference: Sections 4.3-4.4
• NPR 7123.1 Reference: Section 4.3
• Cloud Equivalent: Design service-by-service specifications, define interfaces, produce preliminary V&V plan
• Key Activities:
• Produce service-by-service design specifications
• Define interface control documents (Keystone-Nova, Nova-Neutron, Nova-Cinder)
• Design network topology (management, tenant, external, storage networks)
• Design storage backend (LVM vs Ceph, local vs distributed)
• Prepare preliminary V&V plan
• Deliverables: Service Design Specifications, Interface Control Documents, Network Design, Storage Design, Preliminary V&V Plan
• Review Gate: PDR (Preliminary Design Review) / Configuration Review
• Phase Gate Criteria:
• All service interfaces defined with API contracts
• Network and storage designs documented with rationale
• Trade studies completed for all design alternatives
• Preliminary V&V plan maps every requirement to a verification method

Phase C: Final Design and Fabrication -- Deployment Configuration and Build

• SP-6105 Reference: Section 5.1
• NPR 7123.1 Reference: Section 5.1
• Cloud Equivalent: Produce final Kolla-Ansible configurations, generate certificates, configure networks and storage
• Key Activities:
• Finalize Kolla-Ansible configuration (globals.yml, inventory, service configs)
• Generate and deploy TLS certificates
• Configure network bridges, VLANs, OVS/OVN
• Configure storage backend
• Version-control all configs with decision-documenting commit messages
• Deliverables: Final Configuration Package, Certificate Bundle, Network Configuration, Storage Configuration, Build Procedures
• Review Gate: CDR (Critical Design Review) / Pre-Deployment Review
• Phase Gate Criteria:
• All configurations finalized and version-controlled
• Certificates generated and validated
• Rollback procedures doc