David Shepherd continues his series of articles exploring data management and BIM for SMEs
In Articles 3 and 4, I explained how a jargon-free user-friendly platform for collating a minimum viable dataset from all SMEs could solve the ‘bottom-up’ problem. That is, despite a plethora of information management standards and associated guidance, SMEs were never given a practical, low-cost way to upload the key data for the assets that they install and commission.
In Article 5, I want to address the complementary ‘topdown’ dynamic: how Tier 1 contractors (main contractors and multidisciplinary design/engineering consortia) are best placed to accelerate the adoption of this approach and how the proposed platform transforms ISO-19650 compliance from an administrative burden into operational advantage.
Tier 1s are the nerve centre of every major construction project: they inherit risk from the client, distribute it across Tier 2s and Tier 3s, coordinate design, coordinate installation, manage commissioning, and deliver the handover. If structured data is the missing link, then Tier 1s can provide the missing enforcement mechanism, but only if they have the tools that make enforcement easy, automated, and mutually beneficial.
Why Tier 1s Need the SME Payload Platform More Than Anyone Realises
There are three mounting pressures that are converging on Tier 1 contractors:
Digital deliverables are now contractual, but not easily achievable
ISO-19650 mandates structured information management processes, including container identification, approval workflows, and information exchange criteria, particularly strengthened in ISO 196504, which emphasises quality criteria for each exchange.
While these measures are necessary, they are not sufficient because the standard (including the recently published draft DIS-19650) provides governance controls for container-level information, but not for managing the quality of content within each container.
Tier 1s therefore find themselves responsible for digital deliverables, but without recognised standards or official guidance for quality assuring the structured data that is required to produce those deliverables.
Tier 2/3 variability is enormous
Tier 1s have to contend with fragmented supply chains. Every project assembles a different constellation of subcontractors. While some of them are digitally proficient; many are not. Even in large MEP firms, digital capabilities can vary considerably across divisions and regions.
Clients increasingly expect digital handover
In the public sector, an increasing number of clients are referencing ISO-19650 as a contractual requirement, and private sector clients are rapidly following suit. Despite this, Tier 1s know that most handovers still depend on last-minute document chases and manual spreadsheet consolidation.
The SME payload platform closes this gap by creating predictable digital outputs from inherently unpredictable supply chains.
N.B. (as explained in article 1) the payload is simply the useful information inside of information containers. For example, spaces, systems, assets, classification codes, attributes like flowrates, capacities, materials, geometry that describes shapes and sizes, relationships (asset → space → system); properties required for maintenance, carbon modelling, cost, safety, etc.
The Tier 1 Dashboard: Federated Data Without Federated Models
In article 4, the technical overview outlined the three high-level components of the proposed SME payload platform:
- User Interface (SMEfriendly): user-friendly workflows that minimise the cognitive load required to upload, bulk import, and extract data from existing SME sources, e.g., spreadsheets, PDFs, O&M manuals
- Middleware: The Data Mapping Engine (will become Intelligence Layer in the longer term) – uses mapping from a simple upload template to generate a universal Minimum Viable Dataset [i.e., asset tag; asset location – building/level/space; manufacturer/model/serial number; installation date/installer details; evidence – installation photo, product label, commissioning data; statutory asset (y/n); ‘as-built’ variation (y/n)]
- Client Integration Interface: uses background processes to structure data for import into a variety of O&M platforms, but without requiring SMEs to know anything about BIM, IFC, COBie, or ISO-19650.
To complement this platform, Tier 1 master dashboard must provide:
- Live asset register completeness tracking
By trade, by system, by floor, by space.
- Compliance scoring
- Missing required attributes
- Incorrect spatial allocations
- Duplicate assets
- Unverified installations
- Outofdate revisions
- Install-validation workflow
Embedded confirmations from commissioning teams, enabling reconciliation between design intent and installed reality.
- Exceptions management
Tier 1 managers should be able to respond to subcontractor non-compliances with support, nudges, and/or contractual escalation. SMEs receive automated prompts that feel like helpful reminders rather than compliance policing.

Although this automated assurance workflow mirrors the intent behind the ISO 19650 Information Delivery Cycle (as elaborated in official nima guidance), it goes further to add the missing ingredient: actual data quality assurance rather than just process-correctness.
The Assurance Layer: How Tier 1s Verify and Accept SME-Submitted Data
If assurance workflows are embedded in the proposed SME asset data platform, then Tier 1 contractors are perfectly position to quality assure the entire digital supply chain. The proposed platform supports a three-stage verification and acceptance workflow that aligns naturally with existing Tier 1 responsibilities:
Automated System Checks (PreQA)
Before Tier 1 even reviews the data, the platform has already enforced:
- correct spatial allocations
- presence of all mandatory attributes
- uniqueness of serial numbers and asset IDs
- complete evidence bundle (photos, documents, timestamps)
- tradeappropriate templates
This reduces manual QA effort by 70–90%, ensuring Tier 1 staff only review meaningful exceptions.
Tier 1 Verification of “As Installed” Reality
Tier 1 package managers or information managers use the dashboard to:
- review photos vs. recorded attributes
- reconcile installed assets with design intent / schedules of equipment
- confirm commissioning evidence for mechanical/electrical plant
- identify unapproved substitutions
- detect missing or duplicated assets
- validate void closure items before they become inaccessible
This is where Tier 1 adds irreplaceable value — ensuring that digital data reflects physical installation.
Client Acceptance Using Progressive Assurance
Because the dataset is built progressively:
- clients can conduct riskbased sampling instead of full inspection
- the AIM is SharePointready weeks before handover
- compliance with the AIR is met organically, not through a final-period scramble
Importantly, this turns ISO-19650 compliance into an outcome of good practice, rather than a bureaucratic burden.
How Tier 1s Benefit Organisationally
Predictable handover
Instead of “hunting for information” during the final 12 weeks, the platform produces progressivelyvalidated AIMready data.
This directly addresses the UK Government’s longstanding ambition for improved O&M information capture, a key objective of the 2011 Strategy and later the ISO 196503 operational guidance.
Reduced rework and programme drift
PwC’s study found that poorly coordinated information flows prevented measurement of capex benefits (particularly savings related to clash avoidance and change control) because the evidence wasn’t captured in real time. In contrast, the proposed Tier 1 dashboard enables that evidence to be captured effortlessly.
Better risk positioning
When clients criticise the quality of digital deliverables, Tier 1s often accept the blame, even when the root cause sits in the supply chain. In contrast, the platform provides transparent audit trails showing:
- When information was requested
- When it was submitted
- What was missing
Forensic clarity reduces disputes and strengthens Tier 1 credibility with clients.
Differentiation in bids
Main contractors can offer a digitally assured supply chain, not just a digital process.
This aligns with client expectations for structured, lifecycle-ready information under ISO 196503 and BS 8536.
Making ISO 19650 Practical, Not Performative
ISO 19650 is an information management standard, rather than a data content standard. Therefore, it specifies:
- A governance model (appointing parties, lead appointed parties, appointed parties)
- An information container system
- A CDE workflow with status codes, approvals, and exchanges
- Quality criteria for exchanges in Part 4
But it does not specify:
- How SMEs should capture structured asset data
- How properties should be coordinated across trades
- How to federate data without proprietary authoring tools
- How to make the Level of Information Need achievable
The proposed platform solves this gap by making structured payloads the default output. Compliance is embedded in the ongoing use of platform workflows, rather than being a requirement for practical completion that suppliers are scrambling to fulfil at handover.
Integration with Tier 1 Tools and Workflows
For the proposed platform, the client interface must integrate with the most prevalent platforms:
- SharePoint (common across public-sector clients for AIM ingestion)
- CDE platforms (as container metadata + structured data attachments)
- MS Power BI, enabling dashboard visualisation
- Commissioning tools (through simple APIs)
This creates a continuum from design to installation to handover without requiring subcontractors to adopt heavy authoring tools.
The Network Effect of Tier 1 Adoption
The network effect is the scaling of value that results from increased adoption of a SaaS platform. If the proposed SME-friendly platform is adopted by a Tier 1 contractors, then it is likely the subcontractors will quickly learn it and use it across multiple projects.
In turn, this creates:
- A trained, semidigitised SME ecosystem
- Standardised asset schemas across trades
- Nearrealtime data quality assurance
- Lower-cost compliance
This will create a self-reinforcing digital supply chain, which is something that no standard alone has ever achieved.
What Article 6 Will Cover
In Article 6. I will consider the client perspective:
- how asset owners, FM teams, and public bodies benefit from a payload-first information management strategy and,
- how the proposed platform that facilitates both SMEs and Tier 1s can finally deliver the operational value promised since 2011.
Read the previous articles in the series:
David Shepherd is Product Manager (Data & Construction Programme Enablers)
Image credit: adike – Shutterstock
Read next: Report warns of mounting pressures for SMEs
Are you a building professional? Sign up for a FREE MEMBERSHIP to upload news stories, post job vacancies, and connect with colleagues on our secure social feed.



