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Methodology

Separate the source from the processing layer.

Trust depends on knowing what an authority published and what NagameAlert has structured. This methodology explains that boundary without turning the portal into internal technical documentation.

Information journey

From publication to a common view

  1. 01

    Publication

    An authority or official system publishes an alert, notification, recall or another safety communication using its own structure.

  2. 02

    Ingestion

    NagameAlert retains the source identity, reference and official link whenever they are available.

  3. 03

    Normalisation

    Heterogeneous fields are organised and classified using NagameAlert rules; this does not make them official facts.

  4. 04

    Presentation

    The information is shown in a common hierarchy with access to the source to support interpretation.

Two distinct layers

What belongs to each layer

Source data

Official source

  • Content and identifiers published by the issuing system.
  • Reference, date and measures when provided by the source.
  • Official link as the primary point of consultation.

Derived processing

NagameAlert

  • Normalisation of structures and terminology.
  • Classifications and relationships produced by NagameAlert rules.
  • A common presentation that supports reading and navigation.

A normalised classification helps organise the archive, but it must not be attributed to the issuing authority when that authority did not publish it.

Conceptual boundary

Alert ≠ Incident

Each represented publication retains its official type, identity and provenance. When a publication is presented as an alert, it must not be treated as an incident or automatically grouped with others because they share a product, brand, risk or date: that relationship requires its own method, evidence and criteria.

Limitations and cautions

What this layer must not do

  • It does not replace instructions, measures or updates from the issuing authority.
  • It does not fill missing data with assumptions.
  • It does not turn an alert into a confirmed incident by itself.
  • It does not guarantee that every source publishes the same fields or provides the same historical depth.

Traceability

Returning to the source is part of the method.

NagameAlert keeps the official publication as the primary reference and explains the role of each integrated system. This provenance allows the portal's processing layer to be checked against the source.

View the integrated sources