by Richard McPartland
The Periodic Table of BIM serves as an at-a-glance guide to the steps you need to take to ensure a successful BIM implementation.
Following on from the launch of the table we’re developing a series of articles looking at the table groupings and the terms within. The fourth grouping focusses on PROCESS.
Other articles in this series
By understanding what a best practice workflow looks like and how information can be universally structured you need to understand requirements across the project lifecycle and, in turn, how to ensure efficiency at each project stage.
Figure 2 in PAS 1192-2:2013 graphically demonstrates how PAS 1192-2 provides a logical framework for the production of pertinent information at discrete stages of the whole building lifecycle.
We explore some of the core conepts as part of our exploration of terms within the grouping below.
Assessment and Need (An)
The starting point for your BIM implementation process, the assessment and need analysis draws on the information included in the existing Asset Information Model (AIM).
See: Maintenance and use (Ma) for information on AIM.
Employers Information Requirements (Eir)
Employers Information Requirements take the form of a pre-tender document setting out the information to be delivered and the standards and processes to be adopted by the suppliers as part of the project delivery process.
The Eir is not developed in isolation. Organizational Information Requirements (OIR) generate Asset Information Requirements (Air) which informs Eir.
Similarly, Plain Language Questions (PLQs) will also generate Eir and in turn specify the Project Information Model (PIM).
Clause 5 of PAS 1192 lists out a minimum set of contents for the Eir covering information management, commercial management and competence assessment.
The process of delivering your BIM Execution Plan (Bep). See Bep.
BIM Execution Plan (Bep)
The BIM Execution Plan (Bep) is a document prepared by suppliers to explain how the information modelling aspects of a project will be carried out in a structured and consistent way.
It is submitted pre-contract to address issues that have been raised in Employers Information Requirements (Eir). More detail is then added post-contract to explain the supplier’s methodology for the use of BIM in delivering the project.
The Bep should include common terminology for job titles, descriptions, responsibilities and process to ensure parity for all who need to refer to it.
Clause 6.2 of PAS 1192-2 covers the ‘production of the pre-contract Bep’. It also references the Project Implementation Plan (PIP). The PIP details supply chain capability summary form, incorporating the supplier building information management assessment form(s), the supplier information technology assessment form(s) and the supplier resource assessment form(s).
Clause 7.2 details the contents of the post-contract award Bep which will include everything requested in the Eir along with additional information on management, planning and documentation, standard method and procedure and the IT solutions used. It will draw on the Task Information Delivery Plan (TIDP) – federated lists of information deliverables by each task including format, date and responsibilities.
Figure 8 in PAS 1192-2 shows how documents used for information management relate to one another.
During the design and construction phase, the project information model (PIM) starts out as a design intent model. As a project progresses the model passes from design suppliers to construction suppliers and their supply chain.
Section 9 Information Delivery – Production in PAS 1192-2 documents the delivery process in more detail.
Master Delivery Information (Midp)
The Master Information Delivery Plan (Midp) is the primary plan for the preparation of project information (from the supplier’s perspective) required by employer’s information requirements Eir).
The Midp will list information deliverables and set out when project information is to be prepared, by who and utilising which protocols and procedures for each stage of the project.
Deliverables include (amongst other things) models, drawings or renders, specifications, equipment, schedules, room data sheets with some form of version change control being used across the document set.
The production of the Midp is covered in PAS 1192-2 (Clause 7.3).
Maintenance and use (Ma)
PAS1192:3 specifies requirements of information management to achieve building information modelling (BIM) Level 2 in relation to the operation and maintenance of assets (buildings and infrastructure).
The Asset Information Model (Aim) is the single source of validated and approved information that relates to the built asset, and clients, end users, and facility managers’ use it for the operation and in-use phases. It might relate to a single asset, a system of assets or even an organisation’s entire asset portfolio.
Common data environment (Cde)
A Common Data Environment (Cde) is a single place you can put all the information about a project and easily share it with everyone… not just the geometric models, but broader project information too like documentation, registers and schedules.
The Cde should allow the collection, management and dissemination of all relevant approved project documents for multi-disciplinary teams as part of a managed process but can be implemented in many ways – it might take the form of a project server, extranet or file-based retrieval system.
Clause 9.2 of PAS 1192-2 describes the Common Data Environment in more detail while BS 1192 provides status codes for the Cde.
Digital Plan of Work (DPoW)
The Digital Plan of Works (DPoW) is the articulation of the project delivery stages and the level of detail/ definition that needs to be delivered by each supplier/ discipline to the employer at any point of time.
The free-to-use NBS BIM Toolkit includes a free-to-use digital plan of work tool that enables the definition of who is doing what and when throughout a construction project.
Information Exchange (In)
PAS 1192-2 defines Information Exchange (In) as a structured collection of information at one of a number of pre-defined stages of a project with defined format and fidelity.
The project information mode is progressively developed and delivered to the employer through a series of information exchanges as defined within, for example, the CIC Scope of Services, at key points to coincide with the employer’s decision-making processes as defined by the Employers Information Requirements (Eir) and the CIC BIM Protocol (2013) .