Phase C, Information Systems ArchitectureDerived from TOGAF

Application Interaction Matrix

Name the data that flows from each application to every other, so integration hubs and fragile dependencies become visible.

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Application interactions: what each system sends and what each receives

The same six applications run down the side and across the top. A filled cell names the data that flows from the row application to the column application, so each row reads as what a system provides and each column as what it consumes. The diagonal stays empty.

Application interactions: what each system sends and what each receives The TOGAF Application Interaction Matrix for London Grid Distribution. The same six applications form the rows and the columns, from the connections portal to the LTDS publication system. A filled cell names the data that flows from the row application to the column application, such as asset updates from the asset register into GIS or peak demands from the SCADA historian into the LTDS publication. The diagonal is empty by definition, and the emphasised GIS row feeds four of the five other systems. Source: TOGAF Standard 10, Phase C Application Architecture artifacts. From / to Connections portal GIS Asset register SCADA historian Meter data service LTDS publication ConnectionsportalSite locationsPlanned assetsNew MPANsConnection queue GISCapacity mapsAsset locationsNetwork topologyNetwork maps AssetregisterAsset updatesAsset referencesPlant ratings SCADAhistorianLive loadingLoading historyPeak demands Meter dataserviceDemand historyLV demandDemand data LTDSpublicationPublished headroom Row sends, column receives, diagonal empty. Source: TOGAF Standard 10, Phase C artifacts

The emphasised GIS row feeds four of the five other systems, which makes it the integration hub and the riskiest application to change. Read the last column the other way: the LTDS publication receives from every other application, so its quality depends on five upstream feeds.

Before integration design in Phase C, to expose the hub systems whose changes ripple furthest.

What you need and what you get

You'll need

  • The application list
  • The known interfaces between systems

You'll get

  • A named flow grid, row sends and column receives
  • The hub and sink view of the landscape

Taught in

No course modules linked yet.

Derived from

  • The Open GroupTOGAF Standard 10, Architecture Content: Application Interaction MatrixSource

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