9,524 research outputs found

    Items classifications in purchasing for order process efficiency and a basis for automation: Case: Teleste Oyj

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    This thesis is made as a project for Teleste Oyj, an information technology manufacturer that resides in Turku, Finland. The purpose of this thesis is to study the procurement process of a case company, Teleste and find ways that both the inventory levels and purchasing efficiency could be improved The theoretical framework presents a view into the theoretical models of modern purchasing and inventory management principles that are used to create models for inventory management. How are key figures calculated in inventory and item classification methods are introduced. Automating business processes and the risks, requirements and benefits of automation finalize the theory framework. The empirical research is an implementation of an XYZ-analysis extension for Telestes current ABC -analysis. In this research a years’ worth of inventory requirements from six selected suppliers are analyzed to create an ABC-XYZ matrix that is refined to a set of inventory management rules. Based on the ABC-XYZ analysis results and basing on the created matrix of rules, a proposal for an automated process with system suggestions is presented in the final empirical chapter of the thesis. The automation system bases on the idea that low value items that have low amount of fluctuation in their production demand can be automated to reduce the purchasing workforces amount of tedious number work. The thesis concludes on the idea that Teleste has the capabilities to implement an automated system basing on their current system capability, but it requires building new processes and purchasing or building a new supplier system to fulfill the proposed workflow. The ABC-XYZ matrix, ABCD-123- matrix for Teleste, can be implemented as such as a tool for sourcing and purchasing teams to improve control of resources and understanding the nature of different item demand

    Importance and applications of robotic and autonomous systems (RAS) in railway maintenance sector: a review

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    Maintenance, which is critical for safe, reliable, quality, and cost-effective service, plays a dominant role in the railway industry. Therefore, this paper examines the importance and applications of Robotic and Autonomous Systems (RAS) in railway maintenance. More than 70 research publications, which are either in practice or under investigation describing RAS developments in the railway maintenance, are analysed. It has been found that the majority of RAS developed are for rolling-stock maintenance, followed by railway track maintenance. Further, it has been found that there is growing interest and demand for robotics and autonomous systems in the railway maintenance sector, which is largely due to the increased competition, rapid expansion and ever-increasing expense

    Fire safety in tall timber building : a BIM-based automated code-checking approach

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    Fire safety regulations impose very strict requirements on building design, especially for buildings built with combustible materials. It is believed that it is possible to improve the management of these regulations with a better integration of fire protection aspects in the building information modeling (BIM) approach. A new BIM-based domain is emerging, the automated code checking, with its growing number of dedicated approaches. However, only very few of these works have been dedicated to managing the compliance to fire safety regulations in timber buildings. In this paper, the applicability to fire safety in the Canadian context is studied by constituting and executing a complete method from the regulations text through code-checking construction to result analysis. A design science approach is used to propose a code-checking method with a detailed analysis of the National Building Code of Canada (NBCC) in order to obtain the required information. The method starts by retrieving information from the regulation text, leading to a compliance check of an architectural building model. Then, the method is tested on a set of fire safety regulations and validated on a building model from a real project. The selected fire safety rules set a solid basis for further development of checking rules for the field of fire safety. This study shows that the main challenges for rule checking are the modeling standards and the elements’ required levels of detail. The implementation of the method was successful for geometrical as well as non-geometrical requirements, although further work is needed for more advanced geometrical studies, such as sprinkler or fire dampers positioning

    Working Notes from the 1992 AAAI Workshop on Automating Software Design. Theme: Domain Specific Software Design

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    The goal of this workshop is to identify different architectural approaches to building domain-specific software design systems and to explore issues unique to domain-specific (vs. general-purpose) software design. Some general issues that cut across the particular software design domain include: (1) knowledge representation, acquisition, and maintenance; (2) specialized software design techniques; and (3) user interaction and user interface

    An Exploratory Study of Field Failures

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    Field failures, that is, failures caused by faults that escape the testing phase leading to failures in the field, are unavoidable. Improving verification and validation activities before deployment can identify and timely remove many but not all faults, and users may still experience a number of annoying problems while using their software systems. This paper investigates the nature of field failures, to understand to what extent further improving in-house verification and validation activities can reduce the number of failures in the field, and frames the need of new approaches that operate in the field. We report the results of the analysis of the bug reports of five applications belonging to three different ecosystems, propose a taxonomy of field failures, and discuss the reasons why failures belonging to the identified classes cannot be detected at design time but shall be addressed at runtime. We observe that many faults (70%) are intrinsically hard to detect at design-time
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