I föreliggande studie undersöks hur användare upplever användbarheten i ett säkerhetskritiskt system ? Luftfartsverkets flygledningssystem SIGMA. Utifrån litteraturstudier definieras begreppen användbarhet och säkerhetskritiska system. Empirin utgörs av intervjuer med användare av SIGMA-systemet. Studien visade att användarna upplever att systemet i väsentliga delar har bra användbarhet, vilket utifrån litteraturstudier, intervjuer och efterföljande analys främst tycks bero på att systemet arbetats fram med stor användarmedverkan och att det var utarbetat specifikt för arbetsplatsen.

The aim of the present paper was to see why a recommended course of action is not always followed in the way it is supposed to. The paper deals with a new method (SFA-metoden) used by The Social Insurance Agency in working with sick-listed people. Aspects that are elaborated on are local effects of the method at its introduction, case managers work conditions, and control of the implementation of the method. Two different methods of investigation have been employed. On the one hand, previous reports on the method have been analysed, and, on the other hand, two focus groups interviews, one consisting of case managers´ working with the method, and one constituted by their supervisors have been carried out.The results have been analysed in accordance with, on the one hand, the theory of street level bureaucrats and, on the other hand, certain concepts applied in the new institutionalism.

Elever ska enligt kursplanerna i teknik få förståelse för de tekniska system de möter i sitt dagliga liv. Genom att eleverna får kunskap om teknik i allmänhet och tekniska system i synnerhet får de möjlighet att påverka sina liv som medborgare i en demokrati. I litteraturen saknas idag studier om elevers uppfattningar om tekniska system. Syftet med detta examensarbete är därför att studera vilka vardagsuppfattningar elever har om de tekniska system de möter i vardagen. Studien utgår från systemteori vilken ger en möjlighet att utnyttja det gemensamma mönster som kännetecknar analys av system.

A favourable economic situation in Sweden has lead to a very good market for agricultural real estates. The estate agents? ads in the daily newspapers, where they actively are seeking assignments, give a hint that the supply is smaller than the demand for agricultural real estates. This situation ends up in a competition between real estate agents to get as many assignments as possible to meet the demand from the market. Describing and explaining the sellers? decision process may give a specific agent an advantage towards other agents.

Computer based information systems play an important role in modern military combat vehicles. The crew needs to be able to quickly get information about both the vehicle and its outer surroundings in order to quickly make the correct decisions. In this report, we describe the development of a prototype new information system for the BvS10 vehicle, manufactured by BAE System Hägglunds AB in Örnsköldsvik.An important aspect of the system is the time it takes from the point that the information is generated by the vehicle sensors until it is presented to the user. The system must be able to ensure that it never displays information that is out of date. Thus, it is important to create a layer and component based architecture for the solution, making it possible to control, in detail, the information?s age as it moves through the system.

When using the digital halftone proofing systems, a closer print match can be achieved compared to what earlier couldbe done with the analogue proofing systems. These proofing systems possibilities to produce accurate print match canas well lead to producing bad print matches as several print related parameters can be adjusted manually in the systemby the user. Therefore, more advanced knowledge in graphic arts technology is required by the user of the system.The prepress company Colorcraft AB wishes to control that their color proofs always have the right quality. This projectwas started with the purpose to find a quality control metod for Colorcraft´s digital halftone proofing system(Kodak Approval XP4).Using a software who supports spectral measuring combined with a spectrophotometer and a control bar, a qualitycontrol system was assembled. This system detects variations that lies out of the proofing system´s natural deviation.The prerequisite for this quality control system is that the tolerances are defined with consideration taken to the proofingsystems natural deviations.

The purpose of this paper was to look at the perception of self-determination for adults with intellectual disabilities from their perspective. We wanted to examine the experience of the space available for self-determination in some key areas of life, and how their own thoughts and ideas have been addressed by others. Through interviews with six people with intellectual disabilities, we have found that a single definition of self-determination is elusive. The key seems to be that you get the opportunity to do what you want, to have your voice heard and to receive and take responsibility. The space for self-determination is perceived by respondents as both large and small.

This examination report is a part of a program for Industrial organisation and Economics with specialization in Logistics and Management at Jönköping University. The report contains an analysis of the internal material handling at Kongsberg Automotive, and also an improvement proposal for a new material handling system.The aim with the report is to find a better material handling system and also make an analyse of the existing system. The goal is to shorten the distance for the operators when they order material, and also to increase the productivity.The investigation methods for the report have for the most part consisted of observations and interviews of key-persons who daily work in the production. During some time the actual material handling-system has been observed and some shortcomings have been discovered, and these are also discussed in the report.The shortcomings that have been discovered are for once the indistinct signal that should signal need of material in the production. Some other activities have also been discovered that does not bring any value into the final products.

Diagnosis means detection and isolation of faults. A model based diagnosis system is built on a mathematical model of the system. The difficulty when constructing the diagnosis system depends om how the model is formulated. In this report, a method is described that rewrites the model on such a form that the construction of the diagnosis algoritm is easy. The model is transformed by two state space transformations and the result will be a system on state space form where one part of the system becomes easy to supervise.

Under mina år i skådespelaryrket har jag utvecklat ett allt starkare intresse för dramat mellan raderna i ett teatermanus. Jag vill få syn på hur och vad jag gör när jag arbetar och samarbetar. Min bakgrund som naturvetare har påverkat mitt sätt att se på världen: även konstnärligt är jag starkt inspirerad av ett naturvetenskapligt perspektiv .Jag har formulerat en skådespelarmetod som jag kallar självarkeologi och redogör för dess beståndsdelar genom att låna dramaturgin hos en teaterhändelse: ett läsdrama. Rollkaraktärerna representeras av de grundvalar på vilka strategin vilar. Mina personliga drivkrafter och erfarenheter som tillsammans lett fram till behovet av en metod representerar pjäsens grundkonflikt.

The purpose of this report is to examine various roof structures that can operate in a warehouse with large spans. The building that is examined in the report is currently under construction, and the roof construction has already been selected. The selected roof system will therefore be compared with some other structures and materials that have been possible. The report will evaluate three different frame materials, two insulating barriers and two overlaying materials. Another important part in major construction projects is the roof safety.

The number of new estate agent offices is increasing yearly and each year many hundred new estate agents graduate. The comparing of estate agents by sellers has perhaps been most common in larger cities, but as competition has increased even in smaller towns we experience that it has become a common phenomenon even there. We both come from a small town but are not afraid of the idea of moving to a larger city as newly qualified estate agents. We ask ourselves, which are the determining factors in the choice of a estate agent in a large city as opposed to a small town? Can we see any differences? The purpose with this essay is to give us added knowledge about which factors private persons consider to be important in their choice of an estate agent when selling a house.The body of information is based on two parallel surveys, one in Hudiksvall and one in Stockholm, together with interviews of people in this line of business.

The purpose of this thesis work was to develop an automatic fault detection system for surveillance of bearing temperature in hydropower turbines. The parameters used except the bearing temperature were cooling water temperature and cooling water flow. A simple static model based on data sampled every minute was developed to estimate the bearing temperature. Then a detector for detection of change in bearing temperature based on the CUSUM-algorithm was designed. Since the amount of data was very small the developed model was too uncertain to be used in a working system.The designed fault detection system showed to work well for the available data.

We have carried out a study of a classification system for the Swedish collection at The Royal Library in Stockholm from 1887. It was printed in 50 copies. The constructor, Bernhard Lundstedt, and his colleagues used it as guidance in lack of a catalogue. We regard it a local classification system. Little research has been done on old classification systems, but Francis Miksa points out the importance of examining them.

A new type of chartered holiday, fitness holiday, has evolved during the last years and has also been mentioned in different media channels. Despite this, fitness holiday is a relatively new and unexplored phenomenon, which caught our interest to further explore this. The desire to travel on a holiday of this type has also increased. Therefore, a study about this particular phenomenon with focus on the traveler?s motives behind the choice to go has been done.It?s a qualitative study and most part of the data has been collected during a field study to Playitas Resort, Canary Islands.