Not Every Asset Has a BIM Model - So What?
Existing infrastructure represents the majority of many organisation's asset portfolios. The absence of a BIM model should not prevent an Asset Owner from creating trusted asset information.
Much of the conversation around BIM focuses on new projects.
New buildings.
New infrastructure.
New BIM models.
New digital workflows.
But there is a problem.
Most Asset Owners do not manage only new assets.
They manage portfolios built over many years - and sometimes decades.
Universities have existing campuses.
Hospitals have existing buildings and equipment.
Road authorities have established road networks.
Water authorities operate treatment plants, pipelines and pump stations.
Rail authorities manage infrastructure that may pre-date BIM by many years.
Much of this infrastructure has no BIM model.
Instead, its information may be scattered across:
AutoCAD drawings
PDF drawings
Scanned documents
Spreadsheets
Equipment schedules
GIS databases
Photographs
Operation and maintenance manuals
Paper records
Individual staff knowledge
So, what should the Asset Owner do?
Wait for everything to be converted into BIM?
No.
The more important question is:
How do we turn the information we already have into information that can be trusted and used?
BIM Is Not the Starting Point
BIM is an important way of creating and managing information for new assets.
But an Asset Owner's information strategy cannot depend on every existing asset having a BIM model.
The real objective is broader:
Trusted Asset Information
A BIM model can be one source of that information.
But other sources can also contribute.
For example:
BIM Models
CAD Drawings
PDFs
GIS
Spreadsheets
Photographs
Site Surveys
Asset Registers
O&M Documentation
↓
Information Extraction
↓
Information Structuring
↓
Information Enrichment
↓
Information Validation
↓
TRUSTED ASSET INFORMATION
This approach allows an organisation to work with the information it already possesses while progressively improving it.
The Hidden Value in Legacy Drawings
A legacy drawing is not necessarily just an old drawing.
It may contain valuable information about the asset.
A building plan might identify:
Rooms
Floors
Doors
Windows
Equipment
Mechanical systems
Electrical systems
Fire protection systems
A civil drawing might contain information about:
Roads
Drainage
Kerbs
Stormwater infrastructure
Structures
Services
Road furniture
A water infrastructure drawing might identify:
Tanks
Pumps
Valves
Pipelines
Treatment equipment
Electrical systems
Process systems
The challenge is that this information is often not structured for modern asset management.
The information exists - but it is difficult to search, analyse, validate and connect to an asset management system.
That is where Legacy Asset Information Activation becomes important.
From Legacy Drawing to Asset Information
Consider an old CAD drawing of a university building.
The drawing may contain room numbers and equipment symbols.
But the Asset Owner may need something very different:
Legacy Information | Required Asset Information |
Drawing symbol | Asset |
Text label | Asset ID |
Room number | Controlled location |
Equipment description | Standard asset type |
Drawing layer | Classification |
Equipment schedule | Asset attributes |
Drawing reference | Source record |
The objective is not necessarily to recreate the entire building as a sophisticated BIM model.
The objective is to extract and structure the information required by the Owner.
That distinction can make legacy activation significantly more practical.
The Owner Still Starts with the Requirement
The principles we have discussed throughout this editorial series remain applicable.
The first question is still:
What information does the organisation need?
That is the role of the OIR.
Then:
What information do we need about our assets?
That is the role of the AIR.
For a legacy asset, we can then ask:
What information do we already have?
and:
What information is missing?
This produces an information gap.
This is a much more controlled approach than simply deciding:
Let's BIM-model all our existing buildings.
Activation Does Not Mean Modelling Everything
This is an important distinction for Asset Owners.
There are different levels of information activation.
Level 1 - Document Access
Make existing drawings and documents organised, searchable and accessible.
Level 2 - Structured Information
Extract important information into structured datasets.
Level 3 - Asset Register
Create reliable asset records with unique identifiers, classifications and locations.
Level 4 - Spatial Information
Connect assets to buildings, floors, rooms, road sections, treatment areas or other locations.
Level 5 - Digital Model
Where there is sufficient value, create or develop BIM/3D models.
Level 6 - Integrated Asset Information
Connect validated information to systems such as CAFM, CMMS, IWMS, GIS or other operational platforms.
This means the Asset Owner can choose the appropriate level of information maturity for the business need.
Not every asset requires the same treatment.
Technology Can Accelerate the Process
Modern technology makes legacy activation increasingly practical.
Structured property data can be associated with infrastructure objects.
Existing information can be connected to databases.
GIS can provide geographic context.
BIM platforms can be used where a 3D representation adds value.
Scanning and reality capture can help where drawings are missing or unreliable.
AI can increasingly assist with identifying objects, extracting information and interpreting relationships within drawings and other records.
But technology should come after the information requirement.
The question should not be:
What technology can we use?
It should be:
What information do we need, what do we already have, and what is the most appropriate way to activate the gap?
Validation Is Just as Important for Legacy Information
There is a danger in assuming that because information has been extracted from an old drawing, it is automatically reliable.
It isn't.
Legacy information can contain:
Outdated equipment
Incorrect room numbers
Duplicate identifiers
Missing assets
Inconsistent naming
Inaccurate locations
Superseded drawings
Conflicting records
Therefore, the same principle applies:
Information must be validated before it becomes trusted information.
For example:
Legacy drawing
↓
Asset identified
↓
Asset ID assigned
↓
Location established
↓
Classification applied
↓
Supporting information added
↓
Validation performed
↓
Trusted Asset Record
This provides a controlled pathway from historical information to operational use.
New Assets and Existing Assets Need the Same Destination
This is where the broader BIM Compliance strategy becomes important.
For a new asset, the pathway may be:
OIR
↓
AIR
↓
EIR
↓
Design & Construction
↓
BIM / Asset Information
↓
Validation
↓
Handover
For an existing asset, the pathway may be:
OIR
↓
AIR
↓
Existing Information
↓
Drawings / GIS / Records / Surveys
↓
Extraction & Enrichment
↓
Validation
↓
Asset Information
The starting point is different.
The process is different.
But the destination is the same:
Trusted Asset Information
That is the important strategic perspective.
The Bigger Opportunity for Asset Owners
This approach also changes the way organisations should think about their digital transformation.
Digital transformation does not necessarily begin with:
Let's create a digital twin.
It can begin with:
Let's understand what information we have about our assets.
Then:
What is missing?
What is unreliable?
What should be standardised?
What should be validated?
What information should be connected to our operational systems?
Only then does it become possible to determine where BIM, GIS, digital twins, AI and other technologies provide genuine value.
Conclusion
The absence of a BIM model should not be regarded as a barrier to better asset management.
An organisation can begin with what it already has.
CAD drawings.
PDFs.
GIS.
Spreadsheets.
Photographs.
Existing asset registers.
Site surveys.
The objective is to progressively transform these sources into structured, validated and usable information.
The key principle is:
Don't wait for every asset to become a BIM model before you start managing your information.
Instead:
Activate the information you already have.
Identify what is missing.
Enrich it where necessary.
Validate it against the Owner's requirements.
Build trusted asset information progressively.
Because the ultimate objective is not:
Every asset must have a BIM model.
It is:
Every important asset should have information that the organisation can trust and use.
That is the bridge between legacy infrastructure and digital asset management.
About Dabisa Consulting
At Dabisa Consulting, we help Asset Owners and Infrastructure Authorities transform existing and new asset information through BIM Compliance, Legacy Asset Information Activation, Data Validation and Digital Handover.
Whether the starting point is a BIM model, CAD drawing, GIS dataset or legacy document, the objective remains the same:
From BIM Models to Trusted Asset Information.
Next in the Series
From Legacy Drawings to Trusted Asset Information
A practical look at how existing drawings, records and other legacy sources can be extracted, structured, enriched and validated to create an asset information base for Facilities and Asset Management.
Comments