# Declare the Missing Operand

> A technique for declaring on a jointly authored surface that the one-writer invariant has no operand there.

Record: `lexicon:declare-the-missing-operand`
Kind: technique
Layer: [Execution Core](https://banes-lab.com/records/layer/execution-core.md)
Canonical: https://banes-lab.com/ontology/lexicon#lexicon-declare-the-missing-operand

Listed in [Lexicon terms](https://banes-lab.com/api/records/lexicon.md), after [Hold the Barrier for Planned Writes](https://banes-lab.com/records/lexicon/hold-the-barrier-for-planned-writes.md) and before [Settle Collisions by Announcement](https://banes-lab.com/records/lexicon/settle-collisions-by-announcement.md).

## Category

- [Coordination Surfaces](https://banes-lab.com/records/lexicon-category/coordination-surfaces.md)

## Refactors

- [Operand-Free Outcome Surface](https://banes-lab.com/records/architecture/operand-free-outcome-surface.md)

## Linked from

- [Coordination Surfaces](https://banes-lab.com/ontology/principles/architecture-category-coordination-surfaces.md)