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    4.1 - Guide for Architects

    4.2 - Guide for CS Engineers

    4.3 - Guide for MEP Engineers

    5.0 - Procure

    5.1 - Guide for Contractors

    6.0 - Operate


Guide for Estimators

5.2.1 BIM Guide for Estimators

Building Information Modeling offers the capability to develop project cost information with more accuracy throughout the entire building lifecycle. The key to successful use of BIM‐based costing will be the development of processes and methods within organizations. The level of detail required in a building model will vary depending on project phases, from preliminary (macro)… read more »

5.2.2 Challenges in Cost Estimating

Exchanging data is a challenging aspect of AEC information technology. Software applications are evolving and standard formats to organize and share building information are far from fully mature as well. Software applications can employ several methods for exchanging data – XML, APIs, ODBC among them. The method used depends on the phase of the project,… read more »

5.2.3 The role of the QS in BIM

It is important to understand how the role of the quantity surveyor could change or adapt in the future; this is because the direction of the industry is still being defined and developed in line with either UK standards level 2 principles of BIM or RICS NRM1 Standards. There are a number of themes associated… read more »

5.2.4. Quantity Take-off

In an African context, after the scope has been analysed and broken down into elemental tasks, each task must be quantified and mapped to the ASAQS Elemental Coding structure prior to pricing. Equal emphasis should be placed on both accurate quantity calculation and accurate elemental mapping. Quantities should be shown in elemental units of measure… read more »

5.2.5 BIM and 5D estimating

One of the most important features of estimating in  BIM is its capability to explain building data through a 3D visual model. This representation gives its users a clearer understanding of a building project and reduces the chances for missing or misrepresenting components. Traditional costing applications by their nature have been text‐oriented – listing, tabulating,… read more »

5.2.6 ASAQS Elemental for BIM

Using the ASAQS classification The ASAQS Elemental Class – Version 4 is a classification system derived from the ASAQS Guide to Elemental Cost Estimating 2016, developed for designers and estimators for organizing elements and objects for construction requirements, products, and activities and measuring quantities. This Classification is the most significant step forward for BIM standardization… read more »

5.2.7 IFC for Estimators

The Industry Foundation Class (IFC) is a data model developed by the International Alliance for Interoperability (IAI). It aims to provide a single, internationally accepted framework to facilitate information exchange among participants in the building process, throughout the entire lifecycle. The capabilities of building information models extend well beyond previous technologies of CAD and generic… read more »

5.2.8 Naming Protocols for a QS

Understanding Naming Protocols The role of the quantity surveyor will adapt within the BIM environment. The largest difference will be the volume of detailed measurement by hand that is no longer required and will be replaced by automatic quantity take off. There are a number of software solutions that can be used for this; however,… read more »