> For the complete documentation index, see [llms.txt](https://standards.spdci.org/standards/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://standards.spdci.org/standards/dci-standards/early-warning-systems/wip-early-warning-systems-and-sp-system-interface/9.-ews/1.2-process/prs.ews.02-sp-system-share-aggregated-data-for-analysis/example-2-feedback-loop-sp-system-sharing-post-intervention-impact-data.md).

# Example 2: Feedback Loop — SP System Sharing Post-Intervention Impact Data

### Process Flow

The aim of this feedback loop process is to improve the accuracy, relevance, and performance of  Early Warning Systems (EWS) and anticipatory action triggers by integrating post-intervention outcome data from Social Protection (SP) systems.

Unlike forward-looking risk analysis (hazard + vulnerability), this process focuses on **observed impacts of assistance**, such as:

* Coverage of payments delivered
* Timing of assistance relative to hazard impact
* Changes in household vulnerability or poverty status after intervention

This enables continuous refinement of:

* Trigger thresholds (e.g., rainfall, drought index, flood probability)
* Targeting rules (who should be included/excluded)
* Vulnerability weighting in EWS models
* Anticipatory action effectiveness assessment

### **process Flow:  Sharing  Aggregated data to EWS post-intervention**

<table><thead><tr><th width="213">Section </th><th>Description </th></tr></thead><tbody><tr><td>Actors and Entities</td><td><p>Social Protection (SP) System / SP-MIS</p><p>EWS Platform (Analytics + Trigger Engine)</p><p>DRM (disaster risk management) / Anticipatory Action Coordination Unit</p></td></tr><tr><td>Assumptions</td><td></td></tr><tr><td>Prerequisites</td><td><p></p><ul><li>SP system records payment delivery and beneficiary response data.</li><li>Unique household or anonymized identifier enables linkage across datasets.</li><li>IB-EWS has a trigger model that can be updated iteratively (rules-based or model-based).</li><li>Defined vulnerability and poverty measurement framework (pre/post comparison possible).</li><li>Time-bound event definition (hazard window + intervention window).</li><li>Data-sharing agreement includes post-intervention analytics use.</li></ul></td></tr><tr><td>Process Inputs</td><td></td></tr><tr><td>Process Flow Steps</td><td><p><strong>Step 1:</strong> </p><p><strong>Triggered Anticipatory Action Event Completion</strong></p><ul><li>Hazard event occurs or forecasted event passes.</li><li>SP system completes anticipatory action cycle (e.g., cash transfer, in-kind support).</li></ul><p><strong>Step 2:</strong> </p><p><strong>Post-Distribution Data Collection (SP System)</strong></p><p>SP system compiles:</p><ul><li>% of households reached (coverage rate)</li><li>timing of payment relative to hazard window</li><li>delivery success/failure rates</li><li>beneficiary category breakdown</li></ul><p><strong>Step 3:</strong> </p><p><strong>Post-Intervention Welfare / Poverty Update</strong></p><p>SP system (or linked survey/registry updates) captures:</p><ul><li>updated poverty classification</li><li>proxy means test (PMT) changes</li><li>food security or resilience indicators (if available)</li><li>re-entry into vulnerability categories</li></ul><p><strong>Step 4:</strong> </p><p><strong>Aggregation of Outcome Indicators</strong></p><p>Data is aggregated by:</p><ul><li>geographic area</li><li>vulnerability category</li><li>program type (cash, in-kind, mixed)</li><li>hazard event type</li></ul><p>Key indicators produced:</p><ul><li>% of beneficiaries remaining above/below poverty threshold after intervention</li><li>impact reduction estimate (before vs after assistance)</li><li>recovery rate by region/group</li></ul><p><strong>Step 5:</strong> </p><p><strong>Secure Feedback Data Transfer to EWS</strong></p><p>SP system sends aggregated outcome dataset to IB-EWS:</p><ul><li>anonymized</li><li>event-tagged (linked to specific hazard/trigger episode)</li><li>time-stamped</li></ul><p><strong>Step 6:</strong> </p><p><strong>EWS Integration into Trigger Evaluation Module</strong></p><p>EWS integrates feedback into:</p><ul><li>trigger performance dashboards</li><li>model calibration layers</li><li>vulnerability weighting adjustments</li></ul><p><strong>Step 7:</strong> </p><p><strong>Trigger Refinement &#x26; Model Adjustment</strong></p><p>Based on feedback analysis:</p><ul><li>Adjust trigger thresholds (e.g., drought index level for activation)</li><li>Improve geographic targeting precision</li><li>Update vulnerability scoring weights</li><li>Refine anticipation lead time assumptions</li></ul><p><strong>Step 8:</strong> </p><p><strong>Policy &#x26; Operational Review</strong></p><p>DRM + SP coordination body reviews:</p><ul><li>effectiveness of anticipatory action</li><li>coverage gaps</li><li>inclusion/exclusion errors</li><li>cost-effectiveness of trigger decisions</li></ul></td></tr><tr><td>Outputs</td><td><p></p><ul><li>Trigger performance evaluation report</li><li>Updated vulnerability weighting in IB-EWS</li><li>Adjusted trigger thresholds (if approved)</li><li>Post-action impact assessment by geography and group</li></ul></td></tr><tr><td>Control Points</td><td><p></p><p>1<strong>. Data Linkage Integrity Check</strong></p><ul><li>Ensures correct matching between event, household groups, and outcome data.</li></ul><p>2. <strong>Post-Intervention Bias Control</strong></p><ul><li>Ensures poverty changes are not misattributed solely to intervention without context (confounding hazard effects, seasonal changes).</li></ul><p>4. <strong>Trigger Change Governance Approval</strong></p><ul><li>No automatic trigger changes without institutional validation.</li></ul><p>5. <strong>Data Consistency Check</strong></p><ul><li>Cross-validation between SP records and field monitoring/surveys.</li></ul></td></tr><tr><td>Exception Handling</td><td><p> </p><p>1.Missing Post-Intervention Data</p><ul><li>Use proxy indicators (mobile surveys, historical averages)</li><li>Flag confidence level as low in EWS feedback layer</li></ul><p>2. No Clear Poverty Change Signal</p><ul><li>Maintain existing trigger thresholds</li><li>Increase sample size or monitoring period</li></ul><p>3. Conflicting Outcome Signals</p><p>(e.g., poverty improved in some areas but worsened in others)</p><ul><li>Apply stratified analysis before any trigger adjustment</li><li>No system-wide changes</li></ul><p>4. Data Timing Mismatch</p><ul><li><p>If SP outcome data arrives too late:</p><ul><li>stored for retrospective model training</li><li>not used in current trigger cycle</li></ul></li></ul><p></p></td></tr></tbody></table>

### Diagram 1: Aggregated SP Data for post intervention analysis

<figure><img src="/files/fxz0pZ3nosFOhU9qYmKB" alt=""><figcaption></figcaption></figure>

### Footnote

*This example represents a conceptual interoperability model illustrating how Social Protection (SP) systems and Early Warning Systems (EWS) could exchange aggregated vulnerability and outcome data to support risk analysis and trigger refinement. It does not necessarily reflect an existing operational system or institutional setup. In many country contexts, these functions may be integrated directly within Disaster Risk Management (DRM) systems rather than a standalone EWS architecture, with SP–DRM linkages used instead of SP–EWS interfaces.*


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