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EDGE5 Independent Design Authority

The EDGE5
Methodology

Designed for operation without supervision.

Post-Handover Viability — systems that continue functioning after external support ends.

Proven in Real Conditions

Rwanda — 2017. 13,000+ household systems still functioning in 2025 following two EDGE5 training programs.

0+
Years field experience
0+
Systems still functioning

Most systems are designed for delivery.

EDGE5 designs for continuity.

Success is not measured at handover. It is measured by what continues functioning after support declines — under real conditions, within real constraints, managed by local people.

The EDGE5
Implementation Hierarchy

Systems move from conditions that must be understood toward systems that can be directly built, stabilised, and transferred.

Operating Conditions Cannot be controlled — must be understood first
01

Climate & Water

Sun, rainfall, access, storage, seasonal limits

Environmental
Foundation
02

Landscape Function

Landform, drainage, infiltration, water movement

Physical
Framework
Adaptation Systems Partially influenceable — reduce environmental stress
03

Water Access & Storage

Dams, tanks, swales, household water systems

Water
Infrastructure
04

Access & Movement

Roads, pathways, logistics, movement efficiency

Site
Infrastructure
05

Biomass & Soil Building

Organic matter, mulch, soil protection, fertility

Soil
Infrastructure
Production Systems Directly influenceable — build and sustain
06

Food Security Systems

Household, farm, school, and community food production

Production
Systems
07

Protection Systems

Fencing, living barriers, land restoration, protection from pressure

Protection
Systems
08

Seed & Nursery Systems

Local seed systems, propagation, plant establishment

Propagation
Systems
09

Soil Health & Function

Biology, pH, nutrient cycling, long-term stability

System
Stabilisation
Continuity Systems Most directly influenceable — post-handover survival
10

Skills & Authority Transfer

Local capability, mentoring, adaptation, continuity

Capability
Transfer

Scaling before proof creates dependency and system instability.

EDGE5 — Post-Handover Viability
The Survival Standard

A system is only successful if it continues functioning after external support declines.

  • Without external supervision
  • Within local resource limits
  • Under seasonal stress
  • Through local adaptation

Dependency is a design failure.

Systems Function Within Reality
  • Climate
  • Rainfall and water availability
  • Labour limits
  • Soil conditions
  • Local authority structures
  • Household capacity

These conditions establish the operating boundary of every system.
Designs that ignore them fail after handover — regardless of intent.

Why Systems Fail After Handover

Most systems fail because they are designed for delivery under supervision — not operation under reality. The collapse pattern is consistent across contexts and scale.

Water systemsDesigned against optimistic supply assumptions. Fail under real seasonal limits.
LabourExceeds genuine household capacity. Collapses under daily maintenance load.
AuthorityDecisions remain external. Communities cannot adapt without outside direction.
Scaling before proofExpansion occurs before foundations stabilise. Creates dependency at scale.
Skills not embeddedKnowledge held externally. Leaves with the project team.
Succession gapMost systems fail within 2–5 years of handover — when momentum fades and constraints take over.

EDGE5 designs specifically against these failure patterns.

Field Evidence
0+
Household systems still functioning
Rwanda, 2017
Without ongoing EDGE5 support.

“Communities replicated the system independently without further external input. The model spread beyond the original project boundary.”

Geoffroy S.N. Kayonde Country Director, ADRA Rwanda

EDGE5 does not measure success
at delivery.

It measures whether systems continue functioning independently — under real conditions, within real constraints, after support ends.

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