How Assessments are Structured in ORIS?
Projects, groups, materials and how they connect?
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Every assessment in ORIS follows the same structural logic: a project contains groups, groups contain materials, and transport and operations are linked to each material. Understanding this hierarchy is the foundation for building accurate, readable assessments regardless of how you create them. |
The Assessment Model
An ORIS assessment is built as a hierarchy of nested levels. Carbon and cost data originates at material level and rolls up through the structure to the project. The hierarchy is free-form, meaning you define the groups and their depth based on what makes sense for your project.
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Assessment (your project) |
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Groups and sub-groups |
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Materials |
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Transport |
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Operations |
Project
The project is the top-level container in ORIS. All groups, materials, transport and operations sit within it. Carbon and cost totals at project level represent the sum of everything below.
Groups and Sub-groups
Groups are the structural layer of your assessment. They exist to organise your materials logically and make the assessment readable. You can use any grouping logic that suits your project: by phase, by trade, by zone, by element type, or any combination.
NESTING AND FLEXIBILITY
A group can contain materials, sub-groups, or a mix of both. Sub-groups can themselves contain further sub-groups or materials. There is no limit on the number of groups, sub-groups, or levels of nesting.
- A simple assessment might have a flat list of groups, each containing materials directly.
- A complex infrastructure project might have several levels of sub-groups before reaching materials.
- Different branches of the hierarchy can have different depths, depending on the level of detail needed in each area.
Note
No carbon or cost data is entered at group level. Groups exist purely for structure. All data originates at material level and rolls up through the groups to the project total.
Materials
Materials are the core unit of an ORIS assessment. A material can represent a raw product, a finished product, a composite mix, or any item that carries a carbon footprint and a cost. It always sits inside a group or sub-group.
Every carbon and cost value in the assessment traces back to a material. Transport and operations linked to a material contribute their own values, but the material itself is the anchor point for all of them.
Transport and Operations
Transport and operations are not standalone levels in the hierarchy. They are always linked to a specific material and inherit its context within the group structure.
TRANSPORT
Each material can have one or more transport legs attached to it, covering the logistics associated with that material. ORIS automatically computes the carbon and cost contribution of each leg based on the material quantity.
OPERATIONS
Each material can also have operations attached to it, representing the on-site construction activities needed to place or process it. Operations contain equipment and personnel definitions. A dedicated article covers operations in detail.
Results Dashboard
The results dashboard in ORIS follows the same hierarchy you defined in your assessment. You can navigate from the project total down through groups and sub-groups to individual materials, making it straightforward to identify carbon hotspots at any level of detail.
Tip
A well-structured hierarchy makes the dashboard significantly more useful. Groups that reflect meaningful project divisions allow you to pinpoint where the highest carbon contributions sit and iterate on specific parts of the design without having to re-examine the entire assessment.
This structure applies across all entry points
Whether you build your assessment manually, import it from a BIM file via the open BIM Module, or use the AI BoQ Engine to extract it from an existing Bill of Quantities, the same project-group-material hierarchy applies. Understanding this structure is the foundation for working effectively with any of these workflows.