Sharif Digital Repository

Integrated design includes CAD, process planning and CNC code generation based on an integrated data structure. To enable different CAD/CAM software solutions to be interoperable, it is required to support data exchange in manufacturing enterprises. To realize interoperability there are two basic approaches: i. to focus on STEP standard to support data exchange between CAD systems as well as CAPP/CAM and CNC machining systems; the use of STEP standard ensures the data integration based on STEP standard. ii. utilizing a platform consists of structures and procedures to enable exchange of data between different CAD/CAM/CAPP software applications seamlessly. In this article, the important... 

Today’s businesses strategies are changing from traditional point of view to globalization and distributed enterprise. Companies have to consider flexibility in term of quantity and variety. They have to manage and organize the product development chain where low cost resources are available. Therefore, enterprises and companies should facilitate the flow of information and increase the interoperability between distributed agents. The main information flow occurs in CAD/CAM/CNC chain. Information flow at the end of the chain has always been the main obstacle to enable interoperability. Old Standards for programming CNC machine tools are the main problem to exchange data and facilitate... 

A flexible manufacturing system (FMS) is a manufacturing system in which there is the capability of handling the variations in product's features which is the result of ever-changing customer demands. The flexibility attributes to utilize the resources in a more effective manner. On the other hand, the control of such systems would become more complicated. FMS needs CNC machines and robots and other resources for establishing the flexibility and enhancing the efficiency of the whole system. Also it needs to integrate the resources to reach flexibility. In order to reach this goal, an integrator framework is proposed in which the machining data of CNC machine is received through a STEP-NC... 

MNEs employ a global strategy to achieve growth, whereas their subsidiaries use a local strategy to operate effectively in host countries. Corporate social responsibility (CSR) is an effective strategy adopted by MNEs to develop a legitimate image in host countries. In fact, stakeholders' concerns in different countries and industries should be attended by MNEs and their subsidiaries. MNEs use social media to communicate with stakeholders and disclose their CSR activities. This study highlighted the importance of this context. In other words, stakeholders in different countries and industries react totally differently to Twitter posts. Therefore, MNEs should not communicate and interact with... 

The construction industry involves a wide variety of information and models, and has faced numerous challenges over the years, leading to disputes within the industry. In order to increase productivity on a construction project, collaboration and information exchange are crucial among various stakeholders, including owners, architects, engineers, estimators, surveyors, contractors, and others. This study focuses on the design and development of a native collaboration environment based on construction information modeling. The platform's requirements, specifications, and capabilities were scientifically determined through a literature review, examining collaboration environments in different... 

In an era of data revolution, information systems (IS) and information technologies (IT) play a vital role in the survival of organisations. However, technology application within organisations does not happen automatically or seamlessly. Various external and internal factors can affect the different stages of the technology adoption process, from decision-making to inter- and intra-organisational diffusion. The investigation of factors that influence the adoption level of various technological solutions in different contexts has been an interesting subject for scholars. This study examines the mechanisms through which various factors affect organisations in the architecture, engineering and... 

The electronic health system plays a crucial role in modern healthcare, facilitating efficient data management, secure information exchange, and improved patient care. However, existing systems often face challenges related to security, privacy, scalability, and interoperability. The primary objectives of this study are proposing a system that ensures data security, patient and peer privacy, scalability, data integrity, deniability, traceability, secure data sharing, access control, transparency, real-time monitoring, and security in the drug supply chain. To achieve these objectives, we have proposed a system that encompasses a wide range of requirements of healthcare system. To enhance...