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Can't approve ready while the two suppliers mean different things

LuisBaker0521 · 2025年8月30日 05:08 UTC

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LU
LuisBaker0521
Our lathe supplier uses ready for request received. FR5 integrator uses it for loading area available. I can't sign a handover built on both.

17 条回复

JA
JasperChan1073

Put a normal request on paper and ask each side what happens next. Name receipt separately from area available before arguing over which ready is correct.

24
LU
LuisBaker0521

Machine team says it can acknowledge while still finishing the previous operation.

16
JA
JasperChan1073

Then that acknowledgement cannot serve as loading-area availability in the integrator's sequence. Give those conditions different names in the proposed interface.

6
RE
ReeceBarnes0558

Do both teams have the same view of when the request ends? Renaming ready helps, but it may reveal a second disagreement about clearing the request.

8
LU
LuisBaker0521

No. Machine team clears on receipt. Integrator expects it retained until the transfer is complete.

19
AD
AdaBennett0738

You need one agreed lifecycle, not just two renamed bits. Identify who raises each condition, who acknowledges it, what keeps it valid and what clears it. Walk through a busy machine as well as the easy idle case.

10
OW
OwenBarnes0573

Our display called both states waiting. Name the thing each side is waiting for.

7
JA
JasperChan1073

Owen, could your operator tell which team to call from the revised wording? That's where our first draft usually falls short.

7
LU
LuisBaker0521

Draft now separates request received, loading area available and transfer complete. The suppliers are reviewing the clear conditions together.

20
RE
ReeceBarnes0558

Include connection loss in that review. A retained request can look perfectly reasonable on each side while they disagree about whether it still belongs to the current transfer.

10
OW
OwenBarnes0573

Jasper, yes, after we added the station name and an escalation contact. Waiting alone sent everyone to maintenance.

6
LU
LuisBaker0521

Busy-machine walkthrough agreed. Connection loss exposes an old request that the integrator wants to retry automatically. Machine team hasn't agreed.

7
AD
AdaBennett0738

Leave automatic retry out until the outcome can be reconciled. A lost connection does not tell either team whether the requested work happened. The interface owner needs to define what evidence permits recovery.

7
RE
ReeceBarnes0558

Who is acting as interface owner here? Two suppliers agreeing their own halves is how you got this ready problem.

5
LU
LuisBaker0521

Our controls lead is taking that role. Unknown outcomes will remain held for the reviewed recovery path.

18
JA
JasperChan1073

Have the controls lead keep the interrupted example with the interface document. It explains why request received must not be presented as completed, even after the labels look tidy.

9
LU
LuisBaker0521

Normal sequence definitions agreed. Recovery still under review. New names are in both drawings; no automatic resend approved.

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