Line-items
Line-items are the smallest unit of change in a simulation. Each line-item defines how the value of a single node is adjusted within an assumption.
Why it is relevant
Makes changes to model drivers explicit and controllable
Supports granular, targeted simulations
Keeps alternative assumptions comparable and transparent
How it works
A line-item represents one concrete change to one node.
Each line-item:
Is always assigned to exactly one assumption
Affects exactly one simulation-enabled node
Describes how that node’s values change (absolute or relative)
Can be filtered to apply only to specific parts of the data
By combining multiple line-items within an assumption, complex simulations can be built from small, explicit changes.
Line-items can also have variants, allowing alternative versions of the same change (for example optimistic vs. pessimistic).
Using the feature
Use line-items to express precise changes to individual drivers.
Combine multiple line-items to represent a broader assumption.
Use variants to model mutually exclusive alternatives.
Characteristics
Line-items can only change simulation-enabled nodes.
Line-items do not exist on their own; they always belong to an assumption.
Access & permissions
Line-items follow the same permissions as assumptions and scenarios.
Users who can edit assumptions can create and modify line-items.
FAQ
What is the difference between an assumption and a line-item?
An assumption groups changes conceptually, while line-items define the individual changes.
Can a line-item affect multiple nodes?
No. Each line-item applies to exactly one node.
Can line-items be reused?
Yes. Line-items can be duplicated and adapted.
Are line-items optional?
No. Every assumption is built from one or more line-items.
➡️ See the Line-Items section in the FAQs for more questions.