SYSE.18:5 - Worked Case: Emergency Discharge Across Four Independently Governed Systems

Emergency discharge in one district depends on four actual Systems:

• a flood-pump station, whose configuration and release are decided by the station-owner organization;
• an upstream gate System, whose schedules and overrides are decided by the river-control agency;
• a municipal drainage network, whose capacity commitments and outage notices are decided by the municipal operator organization; and
• an emergency-dispatch System, whose regional agency decides which acknowledgement and escalation Methods are used.

The four Systems contribute to one use. Company membership and whole–part relations require separate evidence. The current configuration and interface evidence supports pumping, gate scheduling, network reception, and dispatch acknowledgement under stated loads and conditions. Four separate commitments bind named Agents under conditions concerning station configuration, the gate envelope, drainage capacity, and dispatch availability. Later Work and delivered results require their own evidence.

A tabletop exercise exposes one material mismatch: the municipal operator commits to four hours of outage notice, while the station fallback needs six. The integration Agent has authority over a station-side buffer and the existing dispatch escalation condition. The municipal operator retains authority over the notice commitment.

The current options are to accept the two-hour gap, add a temporary buffer, request a changed municipal commitment, narrow the discharge use, or stop the increment. The integration decision selects a temporary two-hour buffer plus dispatch escalation while leaving the municipal commitment unchanged. The decision records the external commitment request as a separate possible improvement, not as an accomplished change.

An integration team later installs a mobile buffer System. Identify the installation Work, installed buffer, installation evidence, and newly obtaining buffer-availability relation separately. A representative exercise supports that the buffer absorbs the stated two-hour load and that dispatch acknowledges and escalates under the tested condition. The observation is limited to that load and interval; constituent commitments keep their previous values.

Before installation, the decision identifies the next Work within the integrating Agent’s authority. After the exercise, a separate current observed-coordination claim can inform SYSE.11. A change in a relied-on relation, condition, configuration, or use reopens only the affected claim and decision.

When the full pattern is unnecessary. Use ordinary architecture, configuration, integration, and Work patterns when one Agent has authority over every configuration, release, commitment, and operating decision that can change the integration result.