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In this paper, we report on an empirical study we have conducted at Ericsson to understand the handling of crash reports (CRs). The study was performed on a dataset of CRs spanning over two years of activities on one of Ericsson's largest systems (+4 Million LOC). CRs at Ericsson are divided into two types: Internal and External. Internal CRs are reported within the organization after the integration...
Assets in transmission systems are maintained according to the time-based strategy. But assets importance for the availability of the grid is neglected which means the allocation of maintenance expenditures may be inefficient. This paper introduces an optimization model which is able to improve the reliability of a transmission system as well as expenditures for maintenance and replacement. It is...
This paper presents the findings of a survey on the use of UML in software maintenance, carried out with 178 professionals working on software maintenance projects in 12 different countries. As part of long-term research we are carrying out to investigate the benefits of using UML in software maintenance, the main objectives of this survey are: 1) to explore whether UML diagrams are being used in...
In a unit testing environment, understanding the relationship between production classes and test classes has implications for overall maintenance and hence systems development costs. Equally, the fault-proneness of each type may have a similar influence on the level or required maintenance. In this paper, we explore two aspects of the differences between test and production classes in a commercial...
Architectural Technical Debt is a metaphor for representing sub-optimal architectural solutions that might cause an interest, in terms of effort or quality, to be paid by the organization in the long run. Such metaphor has been regarded as useful for communicating risks of suboptimal solutions between technical and non-technical stakeholders. However, it's fundamental to understand the information...
To get the best generator diagnosis possible, multiple tests must be done but this is time consuming and not always possible. For a company such as Hydro-Québec (HQ), operating more than 350 generators, a diagnostic strategy had to be defined to be able to efficiently diagnose generators. A centralized database used in conjunction with a WEB based diagnostic application (MIDA) was developed at its...
As is known to all, the life cycle of perishable hi-tech products(PHTP) is so short, and the update rate is so fast that market demand of older products is influenced, changed dynamically continuously. Generally, when the product goes wrong and better products continuously appear, customers will replace the failure components, but more and more of them tend to buy updated products now as time goes...
Pressure of emerging countries, environmental protection and industrial companies' interests are pushing European companies towards new trends and paradigms such as sustainable manufacturing. Sustainability is now considered a strategic must-have and it can enable a profitability in the long run. One way to pursue sustainability is to implement a product life cycle approach, especially in the capital...
In this study, to calculate Overall Resource Effectiveness (ORE), planned downtime, facility downtime, setup and adjustments, material shortages, manpower absence, operator performance losses are found out after observing 4 expanded polystyrene (EPS) machines for 23 days, in 3 shifts a day. In the light of this data readiness, facility availability, mold changeover efficiency, material availability,...
The optimum performance of Base Transceiver Station (BTS) is very important thing in the telecommunication business. The failure function on BTS will give the loss of potential revenue and cause to loss of loyalty customer for the company. In order to meet the customer demands, the company must always keep the reliability of telecommunication devices such equipment on the BTS. Based on historical...
This paper focuses on increasing the efficiency of the E&P Companies in their extraction process with a new approach and methodology based on Big Data Analytics. This involves an approach in which the E & P companies could extract out the best of the results from the data which is being retrieved from their various data collecting sources like the RFID Sensors, SCADA Systems etc. and thus...
Software systems are becoming more complex, not least in their Graphical User Interfaces (GUIs), which presents challenges for existing testing practices. Pressure to reduce time to market leaves less time for manual testing and increases the importance of test automation. Previous research has identified several generations of automated GUI-based test approaches with different cost-benefit tradeoffs...
Privatization and liberalization processes established the business environment in Hungary where utilities operate. This environment is featured by real owner approach, decreasing sources and regulatory requirements getting stricter. Beside the external factors significant internal aspects play a part: for the sake of long term sustainability halting of the network aging is a critical task Further...
The purpose of this paper is to demonstrate the contributions of Quality Maintenance (QM) Pillar of TPM approach in improving the product quality in a food industry manufacturing potato chips. QM Pillar is an important initiative of TPM methodology which aims to give customer delight through defect free manufacturing. The effective TPM implementation enhances production efficiency with an ultimate...
Nowadays, consumers expect manufacturers to provide excellent quality, reliable delivery and competitive pricing. This demands that the manufacturer's machines and processes are highly reliable. In order to possess highly reliable machines to make sure smooth manufacturing process, many organizations have implemented Total Productive Maintenance (TPM) as the enabling tool to maximize the effectiveness...
Manufacturing organisations are facing new challenges as competition has become global. Manufacturing industry continues moreover to make manufacturing in production variance more flexible and responsive by looking deeper and more critically into all aspects of its operation. A Product-Service System (PSS) embraces the product and service continuum as one system. Little is known about where the boundaries...
Total productive maintenance (TPM) has become one of the most popular maintenance strategies to ensure high machine reliability since it is regarded as an integral part of lean Manufacturing. One of the main objectives of TPM is to increase the overall equipment effectiveness of plant equipment with a modest investment in maintenance. Companies around the world spend a lot of money on buying new machinery...
Presently the manufactures are facing a great pressure to reduce cost of manufacturing and provide new and quality products in the market on a regular basis. The India's manufacturing sector is striving hard towards operational excellence. Reduction of waste, improvement of quality, higher through put and overall more efficient production system is leading India towards a manufacturing revolution...
The purpose of this research was to come up with an intelligent monitoring tool to reduce the number of breakdowns of a beverage company bottle washer. The Fuzzy Logic system was derived among other artificial intelligent systems to be best appropriate to solve the breakdown challenges of the bottle washer. A gearbox is always jamming and it is not easy to troubleshoot the breakdown cause and fuzzy...
In Malaysia, Lean manufacturing is a unified system that entailed with a set of philosophies, rules, guidelines, tools and techniques which imposed to eliminate significant waste in all business processes for continuous improvement. However, limited studies and publication about lean manufacturing implementation have been done in Malaysia. A single case study method was applied in this study to explore...
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