mobile/cloud BIM research. While it is obvious that speedy data flow has the potential to trigger enhanced efficiencies and effective communication between project teams, little research seems to point in the direction of mobile/cloud BIM, particularly during the management of onsite construction project activities.  
It is therefore unsurprising that the U.K.'s construction industry has recently seen the rapid emerging use of mobile/cloud BIM computing technology, e.g., [11]. For example, it is now common to see the use of mobile devices such as smartphones, tablets and iPads at construction sites. Further, the use of cloud BIM systems such as BIMXtra, A360, etc., has been on the surge in connecting communications between office staff and onsite workers. These recent developments have witnessed site teams having the ability to view and provide responses to site issues directly from their mobile/cloud devices over the wireless network. A mobile BIM device refers to any type of handheld computer that is extremely portable and can be used in managing BIM models. The common devices include notebook computers, Personal Digital Assistants (PDAs), tablet PCs, Ultra Mobile PCs (UPMCs) and mobile phones. Cloud BIM platforms (also often referred to as mobile platforms) are web-based platforms for managing BIM models. Common data environments are amongst the leading cloud BIM platforms being recommended for use in delivering BIM-compliant projects. Cloud BIM platforms generally thrive on the development of compatible applications (apps) and the availability of reliable (speed) mobile network such as 3G or 4G. For better user-experience, apps are being developed for the iPhone Operating System (iOS), Android, Windows phone and other platforms, if existing, and the size of models in mobile systems should be scaled down from their counterparts in desktop systems [12]. Therefore, the cloud BIM has the ability to connect to any mobile device through apps.  
Mobile and cloud BIM technologies are key technologies in the field of cloud computing. According to the National Institute of Standards and Technology (NIST), cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storages, applications and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction [13].  
However, perhaps partly because of the emerging nature of BIM, very limited studies have considered the adoption of mobile BIM [14]. This is in contrast with a surge in the number of peer-reviewed literature about studies related to core BIM technologies, e.g., [11; 15]. Furthermore, while cloud/mobile BIM (e.g., BIMXtra and A360) have corresponding apps in mobile devices (iPad, iPhone, etc.), studies that reveal their connection are limited and rare.  
This study therefore aims to investigate the impact of mobile/cloud (BIM) computing technology use onsite in managing construction project activities. Attainment of this aim invites pursuing the following objectives:  
* establish the state-of-the-art of emerging mobile/cloud BIM and mobile devices used at construction sites;
* investigate how the mobile/cloud BIM systems are used at the construction site;
* investigate the opportunities and effect of mobile/cloud BIM systems usage at the construction site;
* investigate the challenges of mobile/cloud BIM technology and applications in construction site activities; and
* develop or propose a BIM-supported framework that uses mobile/cloud BIM technology for managing projects onsite.