This is a development version of the object-definitions for the UK Government BIM Task Group as developed by NBS

english language questions

Plain Language Questions

The Ministry of Justice has created this set of plain language questions that, as a client, they intend to answer at each stage of a construction project. Key decisions such as whether to proceed to the next work stage or not will be made based upon the answers to these questions.

Questions for Stage 00. Strategy
0/1 What is the information management Strategy?
BIM Strategy & Standards to be used across the portfolio.
0/2 What does the Master plan require to be developed?
Master plan model development sequence for the portfolio, programme or campus.
0/3 What are the characteristics of the site for the current phase of development?
3D laser and/ or radar survey generated solid model and CDF Grid including ground conditions and existing structure. May be existing information from a reliable BIM or GIS source, Google maps/ OS maps.
0/4 What are the portfolio's technical strategies?
(Master Plan) Model information and representations relating to the strategies, e.g. for a campus, distribution of electricity, water, gas, fuel, waste water, communal heating & chilling.
0/5 What performance benchmarks are available for the portfolio?
Analyses of existing facilities, using a standard coding system, e.g. UNICLASS. Benchmarks and targets.
0/6 What are the portfolio's performance objectives?
Extracts of information from the strategy models.
0/7 Has the design standardization policy been defined?
A client owned library of standard design elements, defined in terms of BIM objects.
0/8 Have the stakeholders needs been captured?
List of key deliverables and requirements, where needed supported by measures. These may be captured in a model or a specific requirememnts management system.
0/9 Does the concept meet the stakeholders needs?
Report on stakeholder consultation, using model information that con?rms that their needs may be achieved.
0/10 What is the initial view of revenue (FM) cost?
Major maintenance and capital replacement costs identified. Enery use aspiration. May be a spreadsheet at this stage.
0/11 What is the initial view of revenue income?
Schedule of floor areas (or other appropriate measure0 by earning capacity.
0/12 How will security requirements be met?
Physical boundaries identified in model. Evidence of how information security arrangements defined in Employers Information Requirements will be met.
0/13 Have lessons been learned from previous projects?
Identify lessons learned captured in the models and BIM processes from prior projects.
Questions for Stage 01. Brief
1/1 Have the purposes for which the model will be used been defined?
Purposes documented to inform designers as to what their inputs will need to cater for.
1/2 How are stakeholder needs captured?
An “electronic brief” that is in a format that may be used for automated validation of proposals.
1/3 Do the concepts being considered meet them?
Schedule of facilities compared to electronic brief & electronic 3D sketch.
1/4 How will BIM be managed and exploited in this project?
A contractual BIM execution plan and protocol for the project defining different levels of design maturity for each project phase, who will develop the content, to what standards, who will be authorised to use it, for what purpose, how it will be coordinated, who will own what and how information incompatibilities shall be resolved. This is to include the means and protocols for the communication of information between parties. This is to be reconfirmed for each project phase below.
1/5 What is the available site?
3D laser and / or radar survey generated solid model and CDF Grid including ground conditions and existing structures. (May be existing information from a reliable BIM or GIS source). Google and/ or OS Maps.
1/6 What physical constraints are there on and around the site?
1/7 What services constraints (water, drainage, electricity, etc.) exist?
Existence and current utilisation parameters available for inclusion in a model.
1/8 What other data about the site or asset is available from client records?
Validated information from geometric and information databases & other FM systems.
1/9 What site-specific safety considerations need to be made?
Safety briefing information contained in model (EG location of power cables, gas pipes, filled in basements, pits etc.). Reference to any existing H&S File or O&M systems.
1/10 What is the initial view of capital cost?
Model of the development’s volumes Schedule of internal volumes, land, floor, wall and roof areas or service runs aligned with generic cost data as aggregated by the cost estimator Fabric not normally represented. Budget breakdown.
1/11 What is the initial view of revenue [FM] cost?
Oriented model that minimises energy use. Energy use target or aspiration using an initial environmental performance model Major maintenance and capital replacement costs identified
1/12 What is the initial view of revenue income?
Schedule of floor areas (or other appropriate measure0 by earning capacity.
1/13 How would the development look [early stage visualization] and development control be convinced of the strengths of the development?
3D Sketch High definition photo rendition of 3D laser survey. 3D solid model overlay onto photo rendition. Plans, elevations and data extracted from model.
1/14 Will the development meet the flow rate requirements?
People, fluid and or traffic flow model and simulation – spreadsheet based.
1/15 How will logistics requirements be met?
Outline simulation model of people and material flow capacity for the construction phase.
1/16 How will security requirements be met?
Outline simulation model of people and material flow capacity for the required security level during construction – spreadsheet based.
1/17 What is the acoustic environment?
BIM (map) model with acoustic profile of the area.
1/18 What is the Planning letter of comfort based upon?
Early stage BIM model or visualisation if available.
1/19 What is the basis of stakeholder buy-in?
1/20 What information do facilities managers need to manage the soft & hard utilities?
Extracts from the BIM Strategy & Standards to be used by FM across the portfolio.
1/21 What site information is to be provided?
The survey and associated constraints parametric data from earlier stage.
1/22 What will be the generic services philosophy (passive, natural ventilation, % renewable energy, etc.)?
Generic services philosophy recorded Any metrics that are defined in the brief that could be obtained from the model. Manufacturers’ model information for mandated products (if any) - minimal data for cost, volumetric information, part codes, and relevant performance parameters).
1/23 How will design and material quality be defined?
1/24 Are there any specific FM requirements regarding generic products?
Generic model object information for the product type, e.g. required finishes and performance characteristics.
1/25 Are there any specific FM requirements regarding specific products?
Manufacturers model object information for mandated products (if any) - minimal data for cost, volumetric information, part codes and relevant performance parameters.
1/26 How will whole life cost be assessed?
Model information conforming to BS ISO 15686 and BSI PD 156865 to an agreed level of precision.
1/27 What format shall the information be delivered to the client in?
Model information compliant with the client’s technical standards or those defined in BSI PAS 1192-2: 2013 (and 1192-3 when issued) as specified in Employers Information requirements.
1/28 How will each site or design option be appraised?
Very early stage models and simulations [low level of geometry and information development, supported by benchmarking databases] - whole life costs [see above] and performance.
1/29 How will the outline planning application information be generated?
Drawings, renditions and reports generated from model.
1/30 What are you building?
Drawings, renditions and reports generated from model.
1/31 How can you build it?
Construction sequencing and logistics.
1/32 How will the facility be run?
Building management system requirements.
1/33 How will any temporary decant of personnel and activities be managed?
Phased schedules of requirements.
Questions for Stage 02. Concept
2/1 How will BIM be managed and exploited in this project?
A contractual BIM execution plan and protocol for the project defining different levels of design maturity for each project phase, who will develop the content, to what standards, who will be authorised to use it, for what purpose, how it will be coordinated, who will own what and how information incompatibilities shall be resolved. This is to include the means and protocols for the communication of information between parties.
2/2 What is the concept design?
Rendered block diagram in site context including significant equipment layout to the level of development defined in PAS 1192-2: 2013 and supporting documents.
2/3 Does the design's performance meet the portfolio's requirements?
Early stage simulations, calculations and costs.
2/4 What is the outline proposal for structural design?
Structural design sufficient for simulation modelling for loads, including wind + simulation models & reports Size and weight information in model Temporary construction loads assessed.
2/5 If the works are an addition or refurbishment, how are they to be integrated and coordinated with existing services?
3D survey of existing and interfaces.
2/6 If the works are an addition or refurbishment, what impact are they going to have on existing services?
Simulation of performance of the reconfigured facility.
2/7 What are the output requirements from services systems?
Zoning of services sufficient for first iteration of spatial requirement.
2/8 Can the services and structure be combined within the concept design in the available 3D volumes?
Combined model to demonstrate the first iteration of coordination.
2/9 Can Bldg. Rags Part L and EPC requirements be met?
High level simulation models and reports.
2/10 Can the client's BREEAM or LEED objectives be met?
2/11 What targets are to be used for Post Occupancy Evaluation?
Data from model[s] to be referenced when the targets relating to business outcome, environmental, people, social and economic factors.
2/12 Has the aftercare process been outlined?
Planned interventions [maintenance and replacement intervals] identified for significant elements of the facility.
2/13 Has a method for measuring energy in use and CO2 emissions been incorporated into the design?
Model derived schedule of metering facilities.
2/14 Has a commissioning strategy been integrated into the design?
Optimised facility commissioning logic.
2/15 Can the designers show the project can be delivered safely?
Construction logic demonstrated, highlighting how high risk elements have been avoided or controlled.
2/16 Has the concept been designed for efficient manufacture and assembly? How easy is it to build?
Modularisation strategy evident in the model. Build sequence recorded in the model. Critical elements of the model designed in detail. Critical logistics routes verified in the model.
2/17 What is the preliminary cost estimate?
Identification of key items that will influence the facilities in use. Schedule of capital costs based upon aggregated quantity and rate take off from the model and an associated schedule of assumptions. Whole life cost assessment based upon this plus in use simulation results and documented maintenance assumptions. (As per BS). Confidence level: design contingency of 20>25%.
2/18 How shall the facility be procured?
Recommendations based upon an analysis of the model and associated cost assessments.
2/19 How will the outline proposals be communicated to the client?
A model with separate layers for structure and services compliant with specified Standards. Ability to provide 3D “walk through” presentation from the primary model. Schedule of facilities included within the development. Generic simulation results for the services philosophy and schedules demonstrating that the brief will be met by the resulting development.
2/20 How will any client specific performance needs be met?
Model based simulations as appropriate.
2/21 How will special presentation needs be met (e.g. to stakeholders and approvers)?
Combination of the model plus survey, photographic, rendition and time sequenced information as specified by the client.
2/22 Is the cost plan and cash flow forecast reliable and the risk allowance reasonable, including whole life costing?
Model containing architecture plus cost and time sequence information.
2/23 Has the delivery schedule been validated?
Time attributes associated with the assembly sequence as planned in the model.
2/24 Are there any deviations from the brief or proposals to improve it EG with respect to the use of client standard BIM objects?
Concession request.
2/25 Reconfirmation of how the facility will be run?
Building management system requirements.
2/26 Reconfirmation of how any temporary decant of personnel and activities will be managed?
Phased schedules of requirements.
Questions for Stage 03. Definition
3/1 How will BIM be managed and exploited in this project?
A contractual BIM execution plan and protocol for the project defining different levels of design maturity for each project phase, who will develop the content, to what standards, who will be authorised to use it, for what purpose, how it will be coordinated, who will own what and how information incompatibilities shall be resolved. This is to include the means and protocols for the communication of information between parties.
3/2 Is the design developed to demonstrate detailed proposals for coordinated design intentions?
Zones allocated to demonstrate adequate space for coordination, including building services. Survey of site, Point cloud data processed to form 3D site model. High definition photography overlay on 3D survey.
3/3 Is the design developed to demonstrate detailed proposals for site layout?
Development model superimposed upon 3D laser survey model viewable from a range of pre-agreed perspectives. 2D general arrangement drawings, plans, cross sections and elevations, produced from the model.
3/4 Is the design developed to demonstrate detailed proposals for planning & spatial arrangements?
Demonstration of this through modelling, walk-through visualisations etc. mapping key spatial relationships and showing how these are achieved. Schedule of facilities produced from the model.
3/5 Is the design developed to demonstrate detailed proposals for elevation treatments?
Envelope information in the model. Rendered model information of the required elevations. Structural information in the model.
3/6 Is the design developed to demonstrate detailed proposals for construction systems?
Construction system specific objects.
3/7 Is the design developed to demonstrate detailed proposals for environmental systems?
UK equivalent of AIA Level of Detail: 200. Zones allocated to demonstrate adequate space for coordination, including building services. Survey of site, Point cloud data processed to form 3D site model. High definition photography overlay on 3D survey. Development model superimposed upon 3D laser survey model viewable from a range of pre-agreed perspectives. 2D general arrangement drawings, plans, cross sections and elevations, produced from the model. Schedule of facilities produced from the model. Rendered model information of the required elevations. Structural information in the model. Envelope information in the model. Generic services and control systems sizing / capacity information included in the model. Schematics referenced. Optimised construction sequence and programme information developed in the model. Clash prevention confirmation simulations for -Services & structure including profiles, basic specifications & tolerances -Access routes -Lifting operations.
3/8 Is the design developed to demonstrate detailed proposals for buildability?
Schedule and modelling of zoning and control strategy to be used. Generic services and control systems sizing / capacity information included in the model. Schematics referenced.
3/9 Is the cost plan robust (firm)?
Quantity take off from BIM Schedule assumptions based on build sequence used in BIM. Evidence that results of virtual and/or real prototyping of innovative and complex elements of the design have been incorporated into the BIM. Assumptions of a predicted range of operational costs for key activities. Confidence level: design contingency of 10>15%.
3/10 Is the cash flow forecast reliable?
Sensitivity analysis, varying aspects identified as high risk in the project risk register.
3/11 Will the development perform as specified by client’s requirements, including design, construction and operational budgets?
Model based simulations as appropriate, demonstrating with 95% confidence that the development will perform as required (taking into account the levels of predictability achieved in the past from similar simulations).
3/12 Have lessons learnt from prior projects been acted upon?
Incorporation of model objects from prior projects.
3/13 Use of rule based auto-generation of objects?
Levels 2 & 3 where such rules have been developed.
3/14 Is the design coordinated at a component and building element level of detail?
A detailed model including both geometry and specification information and detailed 2D drawings generated from it.
3/15 Can the design meet Part L compliance and EPC criteria if relevant?
Demonstration of the modelled design to achieve this. Including simulations of energy use during life and related carbon use calculations.
3/16 Have the calculations in relation to any energy related planning conditions been completed and the wider team informed of the implications of them?
Demonstration that the planning requirements have been met. Demonstration that the design has been modified where necessary so as to deliver them.
3/17 Does the design meet other aspects of statutory standards, specifications and brief?
Model with sufficient information to demonstrate a compliant design. Simulations of: - energy use during life and related carbon use calculations - acoustics and PAVA performance - fire & smoke modelling and evacuation - vehicle and people movement capacities.
3/18 Is the design safe to construct?
Model includes construction sequence and identifies aspects such as working at height and edge protection.
3/19 Is the design safe to use?
3D “walk through” for stakeholder assessment.
Questions for Stage 04. Design
4/1 How will BIM be managed and exploited in this project?
A contractual BIM execution plan and protocol for the project defining different levels of design maturity for each project phase, who will develop the content, to what standards, who will be authorised to use it, for what purpose, how it will be coordinated, who will own what and how information incompatibilities shall be resolved. This is to include the means and protocols for the communication of information between parties.
4/2 Does the design meet statutory standards?
Model with sufficient information to demonstrate a compliant design. Simulations of: - energy use during life and related carbon use calculations - acoustics and PAVA performance - fire & smoke modelling and evacuation - vehicle and people movement capacities.
4/3 Is there sufficient site information available to achieve a reliable tender?
2D CAD based 3D model based on laser scan survey (optionally including high definition photographic overlay).
4/4 Is the design safe to use?
3D “walk through” for stakeholder assessment. Assessment of access against M&E and other servicing requirements.
4/5 Is there sufficient design information to get a reliable tender (model, drawings, specifications, schedules, room data, bills of quantities, finishes, walk through etc.)?
Model with both geometric, specification and performance data, with confirmation of the absence of clashes between building, structure and services. Confidence level: design contingency of 5>10%.
4/6 Does the design meet the FM’s needs e.g. access, adaptability, cost, information on the basis of design, accommodation etc.?
Model sourced information that responds to the FM’s questions, as appropriate.
4/7 Does the design meet the FM's cost needs?
For operational costs the design should provide a range that takes account of both energy consumption and required maintenance costs
4/8 Is there a means of controlling distribution of documents?
Definition of how the nominated supplier shall communicate and obtain responses from the client.
4/9 Have price quotations been obtained for procuring the facility's engineering systems?
Costs incorporated into the model.
4/10 Have lead times been obtained for procuring the facility's engineering systems?
Time sequencing incorporated into the model.
4/11 Where can the appropriate maintenance service be sourced?
Notes to provide guidance for initial market research.
4/12 Has the scope for operational and maintenance manuals for the facility been defined?
A specification, including the BIM elements.
4/13 If existing services are in place, have method statements been produced for how these will interface with the new works?
Method statements referenced in model. Procurement plan for permits, access etc. coordinated with construction sequence.
Questions for Stage 05. Build and Commission
5/1 How will BIM be managed and exploited in this project?
A contractual BIM execution plan and protocol for the project defining different levels of design maturity for each project phase, who will develop the content, to what standards, who will be authorised to use it, for what purpose, how it will be coordinated, who will own what and how information incompatibilities shall be resolved. This is to include the means and protocols for the communication of information between parties.
5/2 How will the construction site be managed safely?
Visualisations of potentially hazardous aspects to demonstrate how risks have been mitigated and for briefing staff.
5/3 How will the client be consulted with respect to detailed changes to designs during construction?
Model based information and product samples shall be provided.
5/4 How will client witnessing of commissioning work be scheduled?
Using a project management scheduling tool which is linked to the construction plan sequence.
5/5 How will evidence to support claims be presented?
Model representations plus 3D scanned survey information as appropriate.
5/6 How accurate will the information be?
Confidence level: design contingency of 2 to 5%.
Questions for Stage 06. Handover and Close Out
6/1 How will BIM be managed and exploited in this project?
A contractual BIM execution plan and protocol for the project defining different levels of design maturity for each project phase, who will develop the content, to what standards, who will be authorised to use it, for what purpose, how it will be coordinated, who will own what and how information incompatibilities shall be resolved. This is to include the means and protocols for the communication of information between parties.
6/2 Does the facility meet the brief?
3D model, test & commissioning attribute information, performance simulations, room / other schedules, functionality assessment, life cycle carbon assessment, life cycle cost assessment.
6/3 What changes have been incorporated?
Traceability information (configuration management).
6/4 What has been built?
As built model Positional accuracy attribute information 3D laser or radar survey generated model information. Commissioning information comparing planned performance with actual.
6/5 What is the basis for a valuation?
Schedule of quantities & cost build up.
6/6 How does a specific product / element perform?
Object test result & date attribute information for transfer to FM systems. Update of O&M manuals to reflect amended [performance and settings.
6/7 How will the facility be operated?
Associated operation guides and attribute information referenced and available for transfer to FM systems.
6/8 How is the facility to be maintained?
Associated maintenance manuals and attribute information referenced and available for transfer to FM systems.
6/9 What is the relevant, Health and Safety information?
Associated H&S attribute information.*
6/10 Is the life cycle plan confirmed?
Maintenance information (see above) plus asset replacement plan attribute information for transfer to FM systems.
6/11 Information to run soft FM for actual products used?
Referenced in model(s).
6/12 COSH data?
Referenced in model(s).
Questions for Stage 07. Operation and End of Life
7/1 How will BIM be managed and exploited in this project?
A contractual BIM execution plan and protocol for the project defining different levels of design maturity for each project phase, who will develop the content, to what standards, who will be authorised to use it, for what purpose, how it will be coordinated, who will own what and how information incompatibilities shall be resolved. This is to include the means and protocols for the communication of information between parties.
7/2 Initial period aftercare: Are systems working?
Inputs to the building post occupancy evaluation (POE): specifications (from COBie data set) compared to actual values for metered consumption of energy, CO2 emmissions, water etc.
7/3 How do the specific products/ elements perform?
Metered performance.
7/4 Years 1-3 aftercare: Are systems working and are the stakeholders’ needs satisfied?
Inputs to the building operational performance evaluation (BOPE) – specifications (from COBie data set) + inclusion of soft user perception ratings (comfort etc.). Metered consumption of energy, water etc.
7/5 How can the facility be decommissioned?
Current as built model information combined with the original construction and commissioning sequencing information reviewed to obtain insight and guidance, including recyclability and safety information.