Data Mining in Promoting Flight Safety

The incredible rapid development to huge volumes of air travel, mainly because of jet airliners that appeared to the sky in the 1950s, created the need for systematic research for aviation safety and collecting data about air traffic. The structured data can be analysed easily using queries from databases and running theseresults through graphic tools. However, in analysing narratives that often give more accurate information about the case, mining tools are needed. The analysis of textual data with computers has not been possible until data mining tools have been developed. Their use, at least among aviation, is still at a moderate level. The research aims at discovering lethal trends in the flight safety reports. The narratives of 1,200 flight safety reports from years 1994 – 1996 in Finnish were processed with three text mining tools. One of them was totally language independent, the other had a specific configuration for Finnish and the third originally created for English, but encouraging results had been achieved with Spanish and that is why a Finnish test was undertaken, too. The global rate of accidents is stabilising and the situation can now be regarded as satisfactory, but because of the growth in air traffic, the absolute number of fatal accidents per year might increase, if the flight safety will not be improved. The collection of data and reporting systems have reached their top level. The focal point in increasing the flight safety is analysis. The air traffic has generally been forecasted to grow 5 – 6 per cent annually over the next two decades. During this period, the global air travel will probably double also with relatively conservative expectations of economic growth. This development makes the airline management confront growing pressure due to increasing competition, signify cant rise in fuel prices and the need to reduce the incident rate due to expected growth in air traffic volumes. All this emphasises the urgent need for new tools and methods. All systems provided encouraging results, as well as proved challenges still to be won. Flight safety can be improved through the development and utilisation of sophisticated analysis tools and methods, like data mining, using its results supporting the decision process of the executives.

Managerial experiences related to corporate demerger

In the current economic situation very few business operations are static. In some cases, organizations feel that the most rational solution is not expanding but focusing on their core competencies or certain areas of business through corporate restructuring. The focus in this thesis is on corporate demerger, a process that involves a complete separation of units within a company. Despite the vast amount of research considering corporate demergers, there is still a lack of knowledge about how top managers experience these kinds of organizational rearrangements. In this qualitative case study, the aim is to bring forward the thoughts of executives in two companies that emerged from a single company through corporate demerger a few years ago. By conducting dyadic semi-structured interviews with the management group and board members in both the parent company and the demerger company, I pursue to understand the impressions that they had during the demerger process as well as during the change that followed afterwards. Additionally, their retrospective sense-making patterns are briefly examined. The findings suggest that the way operations are managed before plays an important role in the demerger process. In this case the pre-demerger organization was quite distinctly divided into two business areas, which allowed a somewhat natural allocation of resources. In addition, apart from the top management, every employee knew their future company and role, thus decreasing the amount of uncertainty in lower organizational levels. Consequently, the ambiguity and change faced by the top executives was evidently more powerful compared to the operational actors. The fragmented characteristics also enabled certain points of reference in the unfolding demerger process. Along with the information about future management groups, the pre-demerger re-grouping took place. This sparked up the mental division, where both groups started to act separately. On a personal level, the managers involved in the demerger planning have made retrospective sense of the repercussions related to the restructuring process. For them, it was an extremely demanding, ambiguous and burdensome project that provided them with managerial experiences they are likely not to have again.