Stevie, the site engineer, sets the job's coordinates from the survey and shares them with every firm on day one. Everyone puts zero in the same place.
One model of the whole job
The back alley's bill so far: 68 weeks · See the bill
The right way
Josh agrees how the models will fit together, before anyone models anything: who models what, in which file, to what detail, and how often they're combined.
The models go together for the first time, and they line up. The plant room is where the centre is. The cow has the field to itself.
Now there is: The job's pins (shared coordinates) and a plan for putting every firm's models together (the federation strategy).
What's going on here
When four firms model one centre, they have to agree where it is. Shared coordinates from the job's survey, given to every firm on day one, and a plan for how the models fit together, mean the first time they're combined, they line up.
In the town See it in the town: Four firms, four offices. Where exactly is the centre?
Four firms model the centre in their own Records Offices, then send their models down the home line to the Site Office to be put together. Unless they all start from the job's pins, set from Stevie's survey, the pieces arrive in four different places. Agree the pins and how the models fit before anyone models anything, and the first time Josh puts them together, the plant room is where the centre is.
Fix it Models already in a field? Find everyone's zero.
- Ask every firm where their model's origin and grid sit.
- Issue the job's survey coordinates to every firm in writing.
- Combine the models weekly and fix drift before it grows.
A note for the information manager: Put the shared coordinates and the plan for combining models into every firm's order, so they're priced in rather than bolted on.
Ask two firms on your job where their models put zero. Do they say the same thing?
ISO 19650 From the survey pins to one job
| ISO 19650 says | Means | In the town |
|---|---|---|
| Shared resources | common items, such as templates and set-out data, given to every team so their work matches | the job's pins, shared on day one |
| Information production methods and procedures | the job's agreed ways of making information, including how it is set out so different teams' work lines up | everyone putting zero in the same place |
| Federation strategy | the plan for how separate teams' models are split up and combined into one | the plan for how the models fit |
Based on the ISO 19650 series: the ideas come from the standard; the plain-English wording, examples and advice are InfoTown's. ISO 19650 and its UK National Annex are © ISO and BSI. You'll hear the same language across the industry. Read more for free in the Information Management Initiative (IMI) Framework guidance from BSI and nima. For the full requirements, use the standard itself.