Enterprise Scaling Roadmap

A long-term roadmap for scaling SDD Tool to enterprise scale (15+ people, 150+ specs, multi-team).

Prerequisite: Proceed after completing Scaling Roadmap Phase 1-5

Goals

Smooth management with 500+ specs
Support for geographically distributed teams
Meet enterprise security/audit requirements
Organization-wide governance system

Architecture Evolution

Current: File-based

.sdd/
├── constitution.md
├── index.json
└── specs/
    └── *.md

Advantages: Simple, Git-friendly
Limitations: Performance, concurrency, query limitations

Phase 6: Hybrid

.sdd/
├── specs/           # Source (Git version control)
└── .cache/
    └── sdd.db       # SQLite cache (local)

Files remain source of truth
SQLite for fast queries/search
No Git conflicts (cache ignored)

Phase 7+: Server-based

+-------------+     +-------------+     +-------------+
|  CLI/IDE    |---->|  SDD Server |---->|  Database   |
+-------------+     +-------------+     +-------------+
                           |
                    +------+------+
                    v             v
              +---------+   +---------+
              | Git Sync|   | Webhooks|
              +---------+   +---------+

Centralized management
Real-time collaboration
Advanced analytics/reporting

Phase 6: Local Database

6.1 SQLite Cache Layer

Goal: Improve complex query performance

typescript

// src/core/cache/database.ts
interface SpecDatabase {
  // Table structure
  specs: {
    id: string;
    path: string;
    hash: string;
    title: string;
    status: string;
    phase: number;
    domain: string;
    created: string;
    updated: string;
    content_fts: string;  // Full-text search
  };

  dependencies: {
    from_id: string;
    to_id: string;
    type: 'explicit' | 'inferred';
  };

  reviews: {
    spec_id: string;
    reviewer: string;
    status: string;
    date: string;
    comment: string;
  };

  history: {
    spec_id: string;
    version: number;
    author: string;
    action: string;
    date: string;
    diff: string;
  };
}

CLI Changes:

bash

sdd cache rebuild        # Rebuild cache
sdd cache status         # Cache status
sdd cache clear          # Clear cache

# Advanced query support
sdd query "status:review AND phase:2"
sdd query "depends_on:user-auth"
sdd query "modified_after:2024-01-01"
sdd query "reviewer:@alice AND NOT approved"

Full-text Search:

bash

sdd search "payment failure handling"           # Full-text search
sdd search "OAuth" --domain auth     # Domain filter
sdd search "MUST validate" --type requirement

6.2 Offline-first Sync

Scenario: Distributed teams, unstable network environments

typescript

// src/core/sync/offline.ts
interface OfflineSync {
  // Track local changes
  pendingChanges: {
    id: string;
    type: 'create' | 'update' | 'delete';
    timestamp: string;
    data: SpecData;
  }[];

  // Conflict resolution
  conflicts: {
    spec_id: string;
    local: SpecData;
    remote: SpecData;
    base: SpecData;  // Common ancestor
  }[];
}

CLI:

bash

sdd sync status          # Sync status
sdd sync push            # Local -> Remote
sdd sync pull            # Remote -> Local
sdd sync resolve         # Conflict resolution (interactive)

Phase 7: Central Server

7.1 SDD Server

Architecture:

+--------------------------------------------------------------+
|                      SDD Server                               |
+--------------------------------------------------------------+
|                                                               |
|  +-------------+  +-------------+  +-------------+           |
|  |  REST API   |  |  WebSocket  |  |  GraphQL    |           |
|  +-------------+  +-------------+  +-------------+           |
|         |                |                |                   |
|  +------+----------------+----------------+------+           |
|  |              Core Services                     |           |
|  +-----------------------------------------------+           |
|  |  * Spec Management    * Review Workflow       |           |
|  |  * Dependency Graph   * Impact Analysis       |           |
|  |  * Search Engine      * Notification          |           |
|  |  * Audit Log          * Access Control        |           |
|  +-----------------------------------------------+           |
|                          |                                    |
|  +-----------------------+-----------------------+           |
|  |              Data Layer                        |           |
|  +-----------------------------------------------+           |
|  |  PostgreSQL  |  Elasticsearch  |  Redis       |           |
|  |  (specs)     |  (search)       |  (cache)     |           |
|  +-----------------------------------------------+           |
|                                                               |
+--------------------------------------------------------------+

Tech Stack Options:

Component	Option A (Node.js)	Option B (Go)
API Server	Fastify/NestJS	Fiber/Echo
Database	PostgreSQL	PostgreSQL
Search	MeiliSearch	Elasticsearch
Cache	Redis	Redis
Queue	BullMQ	NATS

API Design:

typescript

// REST API endpoints
interface SddServerAPI {
  // Specs
  'GET    /api/specs': ListSpecs;
  'GET    /api/specs/:id': GetSpec;
  'POST   /api/specs': CreateSpec;
  'PUT    /api/specs/:id': UpdateSpec;
  'DELETE /api/specs/:id': DeleteSpec;

  // Dependencies
  'GET    /api/specs/:id/dependencies': GetDependencies;
  'GET    /api/specs/:id/dependents': GetDependents;
  'GET    /api/graph': GetDependencyGraph;

  // Reviews
  'POST   /api/specs/:id/reviews': RequestReview;
  'PUT    /api/reviews/:id': UpdateReview;
  'GET    /api/reviews/pending': GetPendingReviews;

  // Search
  'GET    /api/search': SearchSpecs;
  'POST   /api/search/advanced': AdvancedSearch;

  // Analytics
  'GET    /api/analytics/overview': GetOverview;
  'GET    /api/analytics/trends': GetTrends;
  'GET    /api/analytics/team/:id': GetTeamMetrics;

  // Audit
  'GET    /api/audit/logs': GetAuditLogs;
  'GET    /api/specs/:id/history': GetSpecHistory;
}

7.2 Real-time Collaboration

WebSocket Events:

typescript

interface RealtimeEvents {
  // Spec changes
  'spec:created': { spec: Spec; by: User };
  'spec:updated': { spec: Spec; by: User; diff: Diff };
  'spec:deleted': { specId: string; by: User };

  // Reviews
  'review:requested': { spec: Spec; reviewers: User[] };
  'review:approved': { spec: Spec; by: User };
  'review:rejected': { spec: Spec; by: User; reason: string };

  // Collaboration
  'spec:locked': { specId: string; by: User };
  'spec:unlocked': { specId: string };
  'user:viewing': { specId: string; users: User[] };

  // System
  'notification': { type: string; message: string };
}

Concurrent Edit Prevention:

bash

sdd edit user-auth           # Acquire lock then edit
sdd edit user-auth --force   # Force unlock (admin)
sdd lock status              # Current lock status

7.3 Git Sync Bridge

Bidirectional Sync:

Git Repository  <------->  SDD Server
     |                         |
     |   push/pull hooks       |
     |   ----------------->    |
     |                         |
     |   server webhooks       |
     |   <-----------------    |
     |                         |

Configuration:

yaml

# .sdd/server.yml
server:
  url: "https://sdd.company.com"
  project: "my-project"

sync:
  mode: bidirectional    # git-primary | server-primary | bidirectional
  auto_push: true        # Auto push on local changes
  auto_pull: true        # Auto pull on server changes

  conflict_resolution: prompt  # prompt | local | remote | merge

Phase 8: Enterprise Features

8.1 Access Control (RBAC)

Role Definitions:

yaml

# Role hierarchy
roles:
  viewer:
    permissions:
      - specs:read
      - search:use
      - reports:view

  contributor:
    inherits: viewer
    permissions:
      - specs:create
      - specs:update_own
      - reviews:request

  reviewer:
    inherits: contributor
    permissions:
      - reviews:approve
      - reviews:reject
      - specs:update_reviewed

  domain_admin:
    inherits: reviewer
    scope: domain    # Within domain only
    permissions:
      - specs:delete
      - constitution:update
      - members:manage

  org_admin:
    permissions:
      - "*"          # All permissions

Domain-specific Permissions:

yaml

# .sdd/access.yml
domains:
  auth:
    admins: ["@alice", "@security-team"]
    reviewers: ["@bob", "@charlie"]
    contributors: ["@dev-team"]

  billing:
    admins: ["@finance-lead"]
    reviewers: ["@finance-team"]
    contributors: ["@dev-team"]

  # Sensitive domain
  compliance:
    admins: ["@legal-team"]
    reviewers: ["@legal-team"]
    contributors: []           # No external contributions
    visibility: restricted     # Only authorized users can view

8.2 Audit Logs

Tracked Items:

typescript

interface AuditLog {
  id: string;
  timestamp: string;
  actor: {
    id: string;
    name: string;
    ip: string;
    userAgent: string;
  };
  action: AuditAction;
  resource: {
    type: 'spec' | 'review' | 'constitution' | 'config';
    id: string;
    domain?: string;
  };
  details: {
    before?: any;
    after?: any;
    diff?: string;
    reason?: string;
  };
  metadata: {
    requestId: string;
    sessionId: string;
    source: 'cli' | 'web' | 'api' | 'automation';
  };
}

type AuditAction =
  | 'spec.create' | 'spec.update' | 'spec.delete'
  | 'spec.view'   | 'spec.export'
  | 'review.request' | 'review.approve' | 'review.reject'
  | 'constitution.update'
  | 'access.grant' | 'access.revoke'
  | 'config.change';

CLI:

bash

sdd audit logs                           # Recent logs
sdd audit logs --actor @alice            # Specific user
sdd audit logs --action spec.delete      # Specific action
sdd audit logs --resource user-auth      # Specific resource
sdd audit logs --since 2024-01-01        # Date filter
sdd audit export --format csv            # Export

Retention Policy:

yaml

audit:
  retention:
    default: 2y          # Default 2 years
    sensitive: 7y        # Sensitive data 7 years
    compliance: 10y      # Compliance 10 years

  export:
    schedule: daily
    destination: s3://audit-logs/
    encryption: AES-256

8.3 Compliance

Supported Frameworks:

Framework	Supported Features
SOC 2	Audit logs, access control, change tracking
GDPR	Data export, right to delete, consent tracking
HIPAA	Encryption, access logs, least privilege
ISO 27001	Documentation, risk assessment, continuous improvement

Compliance Dashboard:

bash

sdd compliance status                    # Compliance status
sdd compliance report --framework soc2   # Framework-specific report
sdd compliance gaps                      # Unmet items

8.4 SSO/SAML Integration

Supported IdPs:

Okta
Azure AD
Google Workspace
OneLogin
Custom SAML 2.0

Configuration:

yaml

# Server configuration
auth:
  provider: saml

  saml:
    entry_point: "https://idp.company.com/sso/saml"
    issuer: "sdd-server"
    cert: "/etc/sdd/idp-cert.pem"
    attribute_mapping:
      email: "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress"
      name: "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name"
      groups: "http://schemas.xmlsoap.org/claims/Group"

  group_mapping:
    "SDD-Admins": org_admin
    "SDD-Reviewers": reviewer
    "SDD-Contributors": contributor
    "SDD-Viewers": viewer

Phase 9: Analytics Platform

9.1 Metrics Collection

Collected Data:

typescript

interface SpecMetrics {
  // Volume
  totalSpecs: number;
  specsByStatus: Record<Status, number>;
  specsByDomain: Record<string, number>;
  specsByPhase: Record<number, number>;

  // Velocity
  avgTimeToApproval: number;      // draft -> approved
  avgTimeToImplement: number;     // approved -> implemented
  reviewCycleTime: number;        // Review cycle

  // Quality
  avgQualityScore: number;
  specsWithTests: number;
  syncCoverage: number;           // Code link rate

  // Activity
  createdThisWeek: number;
  updatedThisWeek: number;
  reviewsCompleted: number;

  // Complexity
  avgDependencies: number;
  maxDependencyDepth: number;
  circularDependencies: number;
}

interface TeamMetrics {
  team: string;
  members: number;
  ownedSpecs: number;
  pendingReviews: number;
  avgResponseTime: number;
  completionRate: number;
}

9.2 Dashboard UI

Web Dashboard:

+---------------------------------------------------------------------+
|  SDD Analytics Dashboard                             Alerts  Admin   |
+---------------------------------------------------------------------+
|                                                                      |
|  +-------------------------------------------------------------+    |
|  |  Overview                                     Last 30 days   |    |
|  +-------------------------------------------------------------+    |
|  |                                                              |    |
|  |   247          89%           4.2 days        12              |    |
|  |   Total       Completion    Avg Cycle      Pending          |    |
|  |   Specs       Rate          Time           Reviews          |    |
|  |                                                              |    |
|  +-------------------------------------------------------------+    |
|                                                                      |
|  +--------------------------+  +------------------------------+     |
|  |  Progress by Phase       |  |  Specs by Domain             |     |
|  |  --------------------    |  |  ------------------------    |     |
|  |                          |  |                              |     |
|  |  P1 ============ 100%    |  |  auth     ========  32       |     |
|  |  P2 =========--- 78%     |  |  billing  ======    24       |     |
|  |  P3 ======------ 52%     |  |  core     ============ 48    |     |
|  |  P4 ===--------- 25%     |  |  api      ==========  40     |     |
|  |                          |  |  ...                         |     |
|  +--------------------------+  +------------------------------+     |
|                                                                      |
|  +-------------------------------------------------------------+    |
|  |  Activity Timeline                                           |    |
|  |  ---------------------------------------------------------   |    |
|  |                                                              |    |
|  |     +-+                   +-+                                |    |
|  |    +- -+      +--+      +- -+      +--+                     |    |
|  |  --+   +------+  +------+   +------+  +----                 |    |
|  |  Mon  Tue  Wed  Thu  Fri  Sat  Sun  Mon  Tue                |    |
|  |                                                              |    |
|  |  - Created  - Updated  - Approved                           |    |
|  |                                                              |    |
|  +-------------------------------------------------------------+    |
|                                                                      |
|  +--------------------------+  +------------------------------+     |
|  |  Team Performance        |  |  Review Queue                |     |
|  |  --------------------    |  |  ------------------------    |     |
|  |                          |  |                              |     |
|  |  Core Team      A  98%   |  |  * billing/refund    2d      |     |
|  |  Auth Team      A  95%   |  |  * auth/mfa-setup    3d      |     |
|  |  Billing Team   B  87%   |  |  * api/rate-limit    5d      |     |
|  |  Platform Team  B  82%   |  |  * core/migration    7d      |     |
|  |                          |  |                              |     |
|  +--------------------------+  +------------------------------+     |
|                                                                      |
+---------------------------------------------------------------------+

9.3 Notification System

Channels:

Slack / Microsoft Teams
Email
Webhook
In-app notifications

Notification Rules:

yaml

notifications:
  rules:
    - name: "Review SLA Warning"
      condition: "review.pending_days >= 5"
      channels: [slack, email]
      recipients: ["@reviewer", "@domain-admin"]
      message: "Review pending for {spec.title} - {review.pending_days} days"

    - name: "Circular Dependency Alert"
      condition: "graph.new_cycle_detected"
      channels: [slack]
      recipients: ["#sdd-alerts"]
      priority: high

    - name: "Quality Score Drop"
      condition: "spec.quality_score < 60"
      channels: [email]
      recipients: ["@author"]

    - name: "Daily Digest"
      schedule: "0 9 * * 1-5"  # Weekdays 9 AM
      channels: [email]
      recipients: ["@all-contributors"]
      template: daily_digest

Phase 10: Ecosystem Expansion

10.1 Plugin System

Plugin Types:

typescript

interface SddPlugin {
  name: string;
  version: string;
  type: 'validator' | 'exporter' | 'importer' | 'analyzer' | 'integration';

  // Lifecycle hooks
  hooks: {
    'spec:beforeCreate'?: (spec: Spec) => Promise<Spec>;
    'spec:afterCreate'?: (spec: Spec) => Promise<void>;
    'spec:beforeUpdate'?: (old: Spec, new: Spec) => Promise<Spec>;
    'spec:afterUpdate'?: (spec: Spec) => Promise<void>;
    'validate:custom'?: (spec: Spec) => Promise<ValidationResult>;
    'export:format'?: (specs: Spec[], options: any) => Promise<Buffer>;
  };

  // CLI extensions
  commands?: {
    name: string;
    description: string;
    handler: (args: any) => Promise<void>;
  }[];

  // UI extensions (web)
  components?: {
    slot: 'sidebar' | 'toolbar' | 'detail-panel';
    component: React.ComponentType;
  }[];
}

Official Plugins:

Plugin	Description
`@sdd/plugin-jira`	Jira issue sync
`@sdd/plugin-confluence`	Confluence document export
`@sdd/plugin-figma`	Figma design spec connection
`@sdd/plugin-openapi`	OpenAPI spec generation/validation
`@sdd/plugin-dbml`	Data model visualization
`@sdd/plugin-mermaid`	Auto diagram generation
`@sdd/plugin-ai`	AI-based spec suggestions/review

10.2 API SDK

Language SDKs:

typescript

// TypeScript/JavaScript
import { SddClient } from '@sdd/sdk';

const client = new SddClient({
  serverUrl: 'https://sdd.company.com',
  apiKey: process.env.SDD_API_KEY,
});

// Query specs
const specs = await client.specs.list({ domain: 'auth' });

// Create spec
const newSpec = await client.specs.create({
  title: 'New Feature',
  domain: 'core',
  content: '...',
});

// Request review
await client.reviews.request(newSpec.id, {
  reviewers: ['@alice', '@bob'],
});

// Real-time subscription
client.subscribe('spec:updated', (event) => {
  console.log(`Spec ${event.spec.id} updated by ${event.by.name}`);
});

python

# Python
from sdd import SddClient

client = SddClient(
    server_url="https://sdd.company.com",
    api_key=os.environ["SDD_API_KEY"]
)

# Search specs
specs = client.specs.search("payment", domain="billing")

# Impact analysis
impact = client.analysis.impact("user-auth")
print(f"Affected specs: {impact.affected_count}")

10.3 Enhanced CI/CD Integration

GitHub Actions:

yaml

# .github/workflows/sdd.yml
name: SDD Validation

on: [push, pull_request]

jobs:
  validate:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: SDD Validate
        uses: sdd-tool/action-validate@v2
        with:
          server: ${{ secrets.SDD_SERVER }}
          token: ${{ secrets.SDD_TOKEN }}
          fail_on: error    # error | warning | none

      - name: SDD Sync Check
        uses: sdd-tool/action-sync@v2
        with:
          threshold: 80
          report: true

      - name: SDD Impact Report
        if: github.event_name == 'pull_request'
        uses: sdd-tool/action-impact@v2
        with:
          comment: true     # Comment on PR

GitLab CI:

yaml

sdd:validate:
  image: sdd-tool/cli:latest
  script:
    - sdd validate --ci
    - sdd sync --ci --threshold 80
  rules:
    - changes:
      - ".sdd/**/*"
      - "src/**/*"

Deployment Options

Self-hosted

yaml

# docker-compose.yml
version: '3.8'
services:
  sdd-server:
    image: sdd-tool/server:latest
    ports:
      - "3000:3000"
    environment:
      - DATABASE_URL=postgresql://...
      - REDIS_URL=redis://...
      - ELASTICSEARCH_URL=http://...
    volumes:
      - ./config:/etc/sdd

  postgres:
    image: postgres:15
    volumes:
      - postgres_data:/var/lib/postgresql/data

  redis:
    image: redis:7

  elasticsearch:
    image: elasticsearch:8.11.0

Kubernetes

yaml

# Helm values
sdd:
  server:
    replicas: 3
    resources:
      requests:
        cpu: 500m
        memory: 512Mi

  postgresql:
    enabled: true
    persistence:
      size: 100Gi

  elasticsearch:
    enabled: true
    replicas: 3

  ingress:
    enabled: true
    host: sdd.company.com
    tls: true

Cloud (SaaS)

SDD Cloud (coming soon)
Managed service
SOC 2 Type II certified
99.9% SLA

Implementation Priority

Phase	Feature	Complexity	Value	Dependencies
6	SQLite cache	Medium	High	-
6	Offline sync	Medium	Medium	6.1
7	SDD Server (MVP)	High	High	6
7	Real-time collaboration	High	Medium	7.1
7	Git bridge	Medium	High	7.1
8	RBAC	Medium	High	7.1
8	Audit logs	Medium	High	7.1
8	SSO/SAML	Medium	Medium	8.1
9	Analytics dashboard	Medium	Medium	7.1
9	Notification system	Medium	Medium	7.1
10	Plugin system	High	Medium	7
10	SDK	Medium	Medium	7.1

Migration Path

File-based -> Hybrid

bash

# 1. Initialize cache
sdd cache init

# 2. Index existing specs
sdd cache rebuild

# 3. Verify
sdd cache verify

Hybrid -> Server-based

bash

# 1. Connect to server
sdd server connect https://sdd.company.com

# 2. Migrate project
sdd server migrate --project my-project

# 3. Invite team
sdd server invite @team --role contributor

# 4. Set sync mode
sdd config set sync.mode bidirectional

Current Limitations - Realistic tool limitations
Scaling Roadmap - Medium-scale expansion (Phase 1-5)
Roadmap Overview - Complete roadmap
Best Practices - Effective usage

Enterprise Scaling Roadmap ​

Goals ​

Architecture Evolution ​

Current: File-based ​

Phase 6: Hybrid ​

Phase 7+: Server-based ​

Phase 6: Local Database ​

6.1 SQLite Cache Layer ​

6.2 Offline-first Sync ​

Phase 7: Central Server ​

7.1 SDD Server ​

7.2 Real-time Collaboration ​

7.3 Git Sync Bridge ​

Phase 8: Enterprise Features ​

8.1 Access Control (RBAC) ​

8.2 Audit Logs ​

8.3 Compliance ​

8.4 SSO/SAML Integration ​

Phase 9: Analytics Platform ​

9.1 Metrics Collection ​

9.2 Dashboard UI ​

9.3 Notification System ​

Phase 10: Ecosystem Expansion ​

10.1 Plugin System ​

10.2 API SDK ​

10.3 Enhanced CI/CD Integration ​

Deployment Options ​

Self-hosted ​

Kubernetes ​

Cloud (SaaS) ​

Implementation Priority ​

Migration Path ​

File-based -> Hybrid ​

Hybrid -> Server-based ​

Related Documentation ​

Enterprise Scaling Roadmap

Goals

Architecture Evolution

Current: File-based

Phase 6: Hybrid

Phase 7+: Server-based

Phase 6: Local Database

6.1 SQLite Cache Layer

6.2 Offline-first Sync

Phase 7: Central Server

7.1 SDD Server

7.2 Real-time Collaboration

7.3 Git Sync Bridge

Phase 8: Enterprise Features

8.1 Access Control (RBAC)

8.2 Audit Logs

8.3 Compliance

8.4 SSO/SAML Integration

Phase 9: Analytics Platform

9.1 Metrics Collection

9.2 Dashboard UI

9.3 Notification System

Phase 10: Ecosystem Expansion

10.1 Plugin System

10.2 API SDK

10.3 Enhanced CI/CD Integration

Deployment Options

Self-hosted

Kubernetes

Cloud (SaaS)

Implementation Priority

Migration Path

File-based -> Hybrid

Hybrid -> Server-based

Related Documentation