MERIDIAN
SSO via XAUTH (auth.xgi.io) • Capital Programme Delivery

Capital programme planning & synchronized delivery.

An infrastructure programme is a living network, not a static spreadsheet. XMERIDIAN sequences complex engineering requirements, partner inputs, and critical milestones into an owned execution plan with verified completion evidence.

Connecting to XAuth… Zero-Trust Authentication via XAuth Identity Gateway
Deterministic CPM Topological Network & Float
5-Factor Maturity Canonical Planning Index
Zero-Trust Identity XAuth SSO: xmeridian
Edge Native Cloudflare D1 + R2 Storage
ENTERPRISE CAPABILITIES

Engineered for Capital Programme Certainty

Every activity, gate, dependency, and milestone is modeled in an immutable topological graph.

Deterministic CPM Scheduling

Topological network sorting, forward and backward interval calculation, and dynamic critical path float detection with sub-millisecond execution.

Calendar-Aligned Roadmap

Visual SVG roadmap synchronizing fixed owner milestones, parallel engineering tracks, and multi-package convergence against calendar coordinates.

Omission Analysis & Proposals

Continuous gap analysis against governing criteria, surfacing missing technical scope as tracked, reviewable activity proposals with full audit trails.

Planning Maturity Index

Five visible planning completeness factors across all programme packages with immutable baseline snapshot verification and differential comparisons.

PLANNING METHODOLOGY & GOVERNANCE

Rigorous Capital Programme Controls

A deterministic framework built specifically for complex engineering, infrastructure, and multi-stakeholder delivery.

01

Baseline Governance

Immutable snapshots freeze accepted programme commitments. Ongoing work evolves against baseline snapshots without losing historical intent or contractual reference points.

02

Evidence-Backed Execution

Activity completions and milestone gates require verifiable references, document IDs, or cryptographic test certificates stored in sovereign R2 object stores.

03

Dual Human & AI Planning

Human planning leads collaborate with autonomous AI agents across the same deterministic graph model with fine-grained role-based permissions and complete change provenance.

MATHEMATICAL CPM ENGINE

Deterministic Critical Path Calculation

Topological graph ordering and float analysis computed in-browser and verified at the Cloudflare edge.

1. Topological Ordering

Identifies all predecessor/successor edges across tasks, detecting and rejecting cyclic loops with immediate feedback.

2. Forward Interval Pass

Calculates earliest start (ES) and earliest finish (EF) times across every dependency node in graph order.

3. Backward Interval Pass

Determines latest start (LS) and latest finish (LF) times anchored to required project milestone commitments.

4. Zero-Float Critical Path

Surfaces activities with total float ≤ 0, highlighting the exact sequence that dictates total programme delivery.

SOVEREIGN ARCHITECTURE

Federated Edge-Native Cloud Platform

Distributed execution across Cloudflare Workers, persistent D1 relational engine, and zero-trust identity federation.

Global Edge Execution

Client application and API endpoints run globally on Cloudflare Workers and Pages with sub-50ms latency and zero cold starts.

Sovereign D1 & R2 Storage

Structured programme records persist in Cloudflare D1 with foreign key integrity. Binary evidence attachments live in private R2 buckets.

Zero-Trust XAuth SSO

Federated identity verification using RS256 JWKS tokens, automatic token rotation via StaySignedIn, and strict scoped audience validation.

Project planning

Project workbench

One view of recorded work, required milestones and proposed activities.

Working plan
No accepted schedule baseline

Project roadmap

Milestones & parallel work
Completed Planned / fixed Proposed Critical Calendar positions use recorded dates · Connections show dependencies, not durations

Completed activitiesReadiness, preparation and engagement

In progressSource reports and working updates

Milestones & gatesTechnical, programme and launch controls

Proposed activitiesScope proposals · review required

0

Critical pathCalculated duration

Loading working plan…
Activity register + timeline
Recorded interval Event Status reported Proposed Critical
ACTIVITY / CONTROL RECORD
PERSON / SUGGESTED ROLE
STATUS
NEEDED BY
20 Jul27 Jul03 Aug10 Aug 17 Aug24 Aug31 Aug07 Sep
TIMING TO AGREE
Solid: actual · Blue: planned · Dashed: proposed · Red outline: critical path

Dates and ownership remain explicit. Suggested roles are not assignments. “Not evidenced” does not establish that a milestone has not occurred.