The aim of the project behind this report is to gain an understanding for the design criteria of launch pad flame deflectors used for launching rockets. This report presents an overview of the underlying phenomena, and then tackles the issue of estimating noise levels that come about during lift-off. Semi-empirical methods are used to accomplish this, and the same basic processes as those presented in a 1971 NASA report are used. The underlying assumptions and approximations used in this report are analysed, and a number of modifications are suggested. The results of these modifications are presented in comparison to the original model as well as data taken from the Ares I-X launch. It is found that the suggested methodology tends to overpredict where the SP-8072 method underpredicts, and that additional considerations regarding launch pad structure and water attenuation will need to be included for a more detailed understanding. Furthermore, the topic of acoustic reflectivity is investigated. It is demonstrated that this aspect is heavily dependent on the dimensions of the flame duct immediately downstream of the nozzle, and that further development is warranted. / Målet med detta projekt är att öka förståelsen för flamdeflektorer och vad som avgör utformningen av dessa. Rapporten presenterar en översikt av de fenomen och mekanismer som alstrar ljud, och fokuserar sedan på att beskriva hur dessa ljudnivåer uppskattas. Semi-empiriska metoder används, och de processer som presenteras i en NASA-rapport från 1971 tillämpas. De antaganden och approximationer som används i denna analyseras, och en rad ändringar föreslås. Resultaten från dessa ändringar presenteras tillsammans med den oförändrade modellen tillsammans med uppmätt data från uppskjutningen av Ares I-X. Den föreslagna modellen visar sig överuppskatta där den oförändrade tenderar att underuppskatta. Ytterligare aspekter gällande uppskjutningsplattformens geometri samt den dämpande effekten vatten har behöver iakttas för en mer detaljerad modell. Akustisk reflektivitet och dess ljudbidrag undersöks. Det visas att denna aspekt beror starkt på dimensionerna för avgaskanalen direkt nedströms från dysan. Det finns därmed anledning för vidareutveckling av denna modell.

A utilização de Células-tronco e técnicas da Engenharia Tecidual representa um grande avanço tecnológico e beneficiará muitos pacientes com suas conquistas. A descoberta de germes dentários como uma fonte confiável de células-tronco possibilitou diversas pesquisas nesta área. Duailibi et al. (2011) sugeriram uma nova classificação de desenvolvimento dentário baseada pela quantidade de material biológico coletado indicando a necessidade de métodos de diagnóstico por imagem para esta nova classificação. Na literatura diversos trabalhos indicam métodos de classificação dentária e métodos para estimar a idade fisiológica de indivíduos. O presente estudo tem o objetivo de adaptar alguns destes métodos para estimar o estágio de desenvolvimento proposto por Duailibi et al. (2011) consequentemente indicando a quantidade de células-tronco esperadas nas amostras. Para tanto, submeteu-se uma coleção de 67 dentes previamente classificados por Duailibi et al. (2011) à técnica rpcl e à tcfc para a obtenção de imagens e a aplicação de técnicas de estimativas por proporções lineares e volumétricas. Os resultados por análises lineares indicaram valores de R2 para o método de proporção de comprimento CDCP de 0,14050; CCCP de 0,65369; CCCR de 0,5408; CDCR de 0,54074; o método de proporção de área APAD de 0,23925; e método de proporção de volume VPVD de 0,08553, com valor de p menor ou igual à 0,05. Concluindo este estudo indica-se o método de rpcl utilizando a análise do comprimento entre coroa e polpa como o mais indicado para estimar o estágio de desenvolvimento. / The usage of human dental stem cells and tissue engineering technics represents a huge tecnological development and it may benefits many patients in a promissing future. The discovery of suitable source of human dental stem cells were made using tooth buds. Duailibi et al. 2011 indicated a new tooth classification on a stem cell harvesting based research, sugesting new methods for diagnosis these stages. Several method were developed for dental age assesement. The presente study aims to evaluate some of these dental age technics and make adaptations for estimating Duailibi et al. 2011 tooth stages. A 67 tooth sample previoulsy classificated by Duailbi et al. 2011 were submited through periapical parallel long cone X-rays and CBCT analysis. Age estimation ratio methods were applied by measuring tooth/root lenth, crown/root lenth, tooth/pulp lenth, crown/pulp lenth, tooth/poulp área and tooth/pulp volume. Results indicated by linear regression analisys a R2 value of tooth/pulp lenth 0,14050; crown/pulp lenth 0,65369; crown/root lenth 0,5408; tooth/root lenth 0,54074; pulp/tooth volume 0,23925; e tooth/pulp volume de 0,08553, with p value of 0,005. In conclusion , the best method for estimating Duailibi et al. 2011 tooth classification techinic is made by using periapical long cone X-rays using crown/pulp lenth ratio.

A utilização de Células-tronco e técnicas da Engenharia Tecidual representa um grande avanço tecnológico e beneficiará muitos pacientes com suas conquistas. A descoberta de germes dentários como uma fonte confiável de células-tronco possibilitou diversas pesquisas nesta área. Duailibi et al. (2011) sugeriram uma nova classificação de desenvolvimento dentário baseada pela quantidade de material biológico coletado indicando a necessidade de métodos de diagnóstico por imagem para esta nova classificação. Na literatura diversos trabalhos indicam métodos de classificação dentária e métodos para estimar a idade fisiológica de indivíduos. O presente estudo tem o objetivo de adaptar alguns destes métodos para estimar o estágio de desenvolvimento proposto por Duailibi et al. (2011) consequentemente indicando a quantidade de células-tronco esperadas nas amostras. Para tanto, submeteu-se uma coleção de 67 dentes previamente classificados por Duailibi et al. (2011) à técnica rpcl e à tcfc para a obtenção de imagens e a aplicação de técnicas de estimativas por proporções lineares e volumétricas. Os resultados por análises lineares indicaram valores de R2 para o método de proporção de comprimento CDCP de 0,14050; CCCP de 0,65369; CCCR de 0,5408; CDCR de 0,54074; o método de proporção de área APAD de 0,23925; e método de proporção de volume VPVD de 0,08553, com valor de p menor ou igual à 0,05. Concluindo este estudo indica-se o método de rpcl utilizando a análise do comprimento entre coroa e polpa como o mais indicado para estimar o estágio de desenvolvimento. / The usage of human dental stem cells and tissue engineering technics represents a huge tecnological development and it may benefits many patients in a promissing future. The discovery of suitable source of human dental stem cells were made using tooth buds. Duailibi et al. 2011 indicated a new tooth classification on a stem cell harvesting based research, sugesting new methods for diagnosis these stages. Several method were developed for dental age assesement. The presente study aims to evaluate some of these dental age technics and make adaptations for estimating Duailibi et al. 2011 tooth stages. A 67 tooth sample previoulsy classificated by Duailbi et al. 2011 were submited through periapical parallel long cone X-rays and CBCT analysis. Age estimation ratio methods were applied by measuring tooth/root lenth, crown/root lenth, tooth/pulp lenth, crown/pulp lenth, tooth/poulp área and tooth/pulp volume. Results indicated by linear regression analisys a R2 value of tooth/pulp lenth 0,14050; crown/pulp lenth 0,65369; crown/root lenth 0,5408; tooth/root lenth 0,54074; pulp/tooth volume 0,23925; e tooth/pulp volume de 0,08553, with p value of 0,005. In conclusion , the best method for estimating Duailibi et al. 2011 tooth classification techinic is made by using periapical long cone X-rays using crown/pulp lenth ratio.

Die exakte Bestimmung des energetischen Futterwertes von Grünland ist für die Praxis von großer Bedeutung. Das am häufigsten angewendete Schätzverfahren auf Basis der chemischen Analyse ist für Grünlandbestände mit geringer Nutzungsintensität nicht anwendbar. Ziel der Arbeit war es zu prüfen, ob andere ausgewählte Zellwandparameter (Xylose, Arabinose, pCA, FA, säurelösliches Lignin, ADL:Gesamtlignin) über ein breites Nutzungsspektrum eine engere Korrelation zur Verdaulichkeit der OS haben als die Rohfasergehalte, auf deren Korrelation zur in vivo Verdaulichkeit die Schätzgleichungen auf Basis der chemischen Analyse beruhen. Weitere Ziele waren ein Methodenvergleich verschiedener Schätzverfahren und die Bestimmung des Einflusses der Zusammensetzung der bestandsbestimmenden Einzelpflanzen auf den Energiegehalt der Bestände. Als Probenbasis dienten Pflanzenbestände, die in den Jahren 1996-1998 auf drei unterschiedlichen Versuchsflächen (5, 6 und 7) mit verschiedenen Gräserzusammensetzungen und drei unterschiedlichen Nutzungsformen (intensiv, 3-4 Schnitte, mit (A) bzw. ohne (B) N-Düngung und extensiv (C), 2 Schnitte, später erster Schnitt) im ersten und zweiten Aufwuchs gewonnen worden waren. Alle Bestandsproben (insgesamt 50) und Einzelpflanzen (109) wurden nach der Weender-Analytik analysiert, die Faserbestandteile NDF, ADF und ADL bestimmt, ausgewählte Zellwandparameter analysiert und der HFT-Gastest durchgeführt. Zum Methodenvergleich wurden die von der Gesellschaft für Ernährungsphysiologie (GfE, 1998) empfohlenen Gleichungen auf der Basis des Rohnährstoffgehaltes und der Gasbildung (Gb) sowie die Gleichungen von WEISSBACH et al. (1996, 1999) auf der Basis der enzymunlösbaren organischen Substanz (EuLOS) verwendet. Als Ergebnis dieser umfangreichen Untersuchungen zeigte sich, dass durch den starken Einfluss von Weißklee auf die Gehalte an Hemicellulosemonomeren (der Xylosegehalt von Klee beträgt 22% des Gehaltes in Gräsern) und phenolischen Säuren (pCA-Gehalt im Klee 10% des Gehaltes in Gräsern) in den Proben die Arbeitshypothese einer engen Korrelation dieser Parameter zur Verdaulichkeit nicht bestätigt werden konnte. Das ADL:Gesamtlignin Verhältnis erbrachte die engste Korrelation zur in vivo Verdaulichkeit. Aus diesem Grund wird dieser Parameter als Prüffaktor am geeignetsten betrachtet. Die Einzelpflanzen zeigten in Abhängigkeit zur Nutzung größere Abweichungen als zwischen den Gräserspezies. Der Methodenvergleich erbrachte, dass mit dem untersuchten Probenmaterial die HFT- und EuLOS96-Gleichungen eine sehr gute Übereinstimmung mit den gemessenen Energiewerten aufwiesen. Die erfassten unlöslichen Reste sowohl aus HFT als auch aus der Cellulasemethode (EuLOS) zeigen eine wesentlich engere Korrelation zur Verdaulichkeit als die Gasbildung und ELOS-Werte. / In practice, the accurate estimation of the feed value of grassland is important. The most common method, the calculation of feed value using the chemical analysis of nutrients, is not suitable for grasslands with a low levels of utilisation. Therefor the objective of this study was to test some selected parameters of cell wall for their better suitability of calculating the feed value than the conventional crude fibre content. These parameters were: Xylose, Arabinose, para coumaric acid (pCA), ferula acid (FA), acid soluble Lignin, and the ratio ADL to whole lignin. Further objectives were to compare different in vitro feed value estimation methods and to estimate the influence of the single grass species on the energy content of the grassland. The study samples were different grassland populations harvested during 1996 and 1998, from three different floor spaces (5,6,7) with different grass populations and with three intensities of management 3 to 4 cuts per year, with (A) and without (B) N-fertilizer and 2 cuts (C) with the first cut after the 1st July. The nutrient content, detergent fibre, cell wall parameter analysis, and HFT gas test were analysed for all grass samples (50) and single plant species (109). The recommended formulas based on the nutrienet content and HFT values (GfE, 1998) and based on the enzymatically insoluble organic matter (WEISSBACH et al., 1996, 1999) were used for the comparison of the feed value calculation methods. Based on the results of this extensive analytical work the chosen cell wall parameters xylose, arabinose, xylose: arabinose, pCA and ferula acid were not better suitable for the estimation of energy content. The possible reason for this is that the big differences in xylose and pCA contents between the white clover and grasses on the grassland. The concentration of xylose and pCA in clover is only 22% and 10% of the grasses, respectively. The ratio ADL: whole lignin gave a close correlation to the in vivo digestibility and seems to be the best suitable for estimating the energy content. The management intensity affected the nutrient contents more than the single grass species. The HFT and EuLOS96 - methods provided the lowest deviation to the in vivo values and are best suitable also for the extensively produced samples. The measured insoluble residues of the HFT and cellulase-methods gave closer correlation coefficients than the ml Gb and the cellulase soluble matter.

This thesis focuses on the development of tools and methods dedicated for ultra wide band (UWB) localization systems in indoor environment. The thesis work was conducted within the European FP7 project Where2, about the cooperative localization in cellular networks. Data from a measurement campaign conduct during the project are used to validate the proposed algorithms. This thesis is divided in four parts : The first part is focused on the description of an original raytraing tool based on a graph description. In order to be compliant with the requirement of a mobile simulation, a new concept of rays signature enabling incremental computation, and a vectorized formalism for processing rays are described and implemented. The second part is focused on the indoor localization techniques, where a novel technique based on interval analysis approaches is presented and compared to alternative techniques. Advantageously using this approach, a specific processing based on an hypothesis testing method using received power observations to resolve ambiguities appearing in under determined localization problems is described. A third part describes different aspects of the dynamic platform. In particular a realistic mobility model based on ''steering behaviors'', a graph description of the network scene and an inter agents communication protocol are detailed. The fourth section uses measured data obtained from an heterogeneous measurement campaign to validate both the developed software platform and the proposed localization algorithms.

Fitting of parametric models to spatial and space-time point patterns has been a very active research area in the last few years. Concerning clustered patterns, the Cox point process is the model of choice. To avoid the computationally demanding maximum likelihood estimation or Bayesian inference, several estimation methods based on the moment properties of the processes in question were proposed in the literature. We give overview of the state-of-the-art moment estimation methods for stationary spatial Cox point processes and compare their performance in a simulation study. We also discuss generalization of such methods for inhomogeneous spatial point processes. In the core part of the thesis we focus on minimum contrast estimation for inhomogeneous space-time shot-noise Cox point processes and investigate the possibility to use projections to the spatial and temporal domain to estimate different parts of the model separately. We propose a step-wise estimation procedure based on projection processes and also a refined method which remedies the problem of possible cluster overlapping. We establish consistency and asymptotic normality of the estimators for both methods under the increasing window asymptotics and compare their performance on middle-sized observation windows by means of a simulation study....

This essay deals with estimation methods while implementation of Type application software. After the introductory part, which stipulates objectives of the work and descriptions of how to achieve them, is a general description of basic features of the project. After this part, there are characterized basic attributes of estimates, various approaches to their formation and problems that can accompany estimation activity. This work also describes diversification of information systems according to their way of development on Individual application software and Type application software. Then it defines their mutual differences while implementation. Next chapter resolve the first objective associated with exploration of implementation methodologies used by companies operating on the Czech market in the area of IS / ICT. Part of this chapter is dedicated to the AcceleratedSAP methodology which describes the life cycle of projects. The following chapter deals with the performance of the second objective, which is a comprehensive overview of estimation methods. Some items from this list are later selected for more detailed evaluation, in account of some of them are marked under the third objective as suitable for projects dealing with implementation of Type application software. In the last section of this essay is solved the main given objective, which is to implement some of chosen estimation methods into AcceleratedSAP methodology. Later in this chapter is recorded a reflection on possibilities of using model based estimation methods in area of Type application SW. It is followed with a proposal for possible course of development of such a model. The work ends with a practical example of effort estimation through UCP method adapted for the Type application software environment. This is followed by conclusions evaluating the achievements of set objectives.

The research presented in this work addresses open questions regarding (i) the fundamental understanding of powder compaction, and (ii) the complex mechanical response of particle-binder composites under large deformations. This work thus benefits a broad range of industries, from the pharmaceutical industry and its recent efforts on continuous manufacturing of solid tablets, to the defense and energy industries and the recurrent need to predict the performance of energetic materials. Powder compacts and particle-binder composites are essentially confined particulate systems with significant heterogeneity at the meso (particle) scale. While particle mechanics strategies for modeling evolution of mesoscale microstructure during powder compaction depend on the employed contact formulation to accurately predict macroscopic quantities like punch and die wall pressures, modeling of highly nonlinear, strain-path dependent macroscopic response without a distinctive yield surface, typical of particle-binder composites, requires proper constitutive modeling of these complex deformation mechanisms. Moreover, continued loading of particle-binder composites over their operational life may introduce significant undesirable changes to their microstructure and mechanical properties. These challenges are addressed with a combined effort on theoretical, modeling and experimental fronts, namely, (a) novel contact formulations for elasto-plastic particles under high levels of confinement, (b) a multi-scale experimental procedure for assessing changes in microstructure and mechanical behavior of particle-binder composites due to cyclic loading and time-recovery, and (c) a finite strain nonlinear elastic, endochronic plastic constitutive formulation for particle-binder composites.

In this thesis, we describe and analyze computerized adaptive tests (CAT), the class of psychometrics tests in which items are selected based on the actual estimate of respondent's ability. We focus on the tests based on di- chotomic IRT (item response theory) models. We present critera for item selection, methods for ability estimation and termination criteria, as well as methods for exposure rate control and content balancing. In the analytical part, the effect of CAT settings on the average length of the test and on absoulute bias of ability estimates is investigated using linear regression mo- dels. We provide post hoc analysis of real data coming from real admission test with unknown true values of abilities, as well as simulation study based on the simulated answers of respondents with known true values of ability. In the last chapter of the thesis we investigate the possibilities of analysing adaptive tests in R software and of creating a real CAT. 1

<p>Det finns olika strategier och många olika metoder inom strategierna för att tidsuppskatta ett IT-projekt. Dessa strategier och metoder skiljer sig mer eller mindre åt och många gånger har företag egna metoder för tidsuppskattning. Dessa strategier och metoder har samma syfte, vilket är att göra så noggranna tidsuppskattningar som möjligt för att undvika försenade projekt. Examensarbetets syfte är att visa på hur LexiConsult AB kan förbättra sina tidsuppskattningar av inkommande IT-projekt genom att följa studiens rekommendationer, vilket leder till bättre tidsuppskattningar och nöjdare kunder. Undersökningen har utförts genom en litteraturstudie, där genomgång av de olika delarna inom IT-projekt skett. Det teoretiska kapitlet ligger senare till grund för den empiriska undersökning som utförts på företaget vilket ger insikt och perspektiv i hur företaget arbetar med sina projekt. Teorin visade att en bra tidsuppskattningsmetod inkluderar alla delarna i ett projekt och att dessa måste genomgås innan en bra tidsuppskattningsmetod kan tas fram.</p><p>Det komplexa ämnet tidsuppskattning har gjort att en deduktiv ansats har valts för arbetet, där utgångspunkten ligger i teorin. Den djupa teorigenomgång som har utförts av författarna avspeglar sig i den kvalitativa forskningsmetod som valts för studien där syftet med metoden är att få djupare kunskap genom analyser och tolkningar i teori och verklighet. Författarna har försöktsäkerställa examensarbetets kvalité genom att beakta det insamlade materialets validitet, reliabilitet och relevans.</p><p>De analyser som genomförs i arbetet där LexiConsults arbetssätt analyseras mot den teori som har genomgåtts leder till ett flertal rekommendationer i slutsatsen av arbetet. Företagets brister i informationsstruktur leder till rekommendationer om införandet av en databas med kategorier av de projekt företaget utför. Vikten av bra kravspecifikationer inom tidsuppskattning leder i slutsatsen till en förbättrad kravspecifikation med uppdelning av de olika faserna i projektet med tidsuppskattning och kommentarer på varje del. Vikten av bra uppföljning av projekt framhävs och rekommendationer ges till en uppföljningsmall, vilket resulterar i designen till en sådan. Företagets arbetsmetoder och historik tas tillvara och en analogisk tidsuppskattningsmetod rekommenderas för framtida projekts tidsuppskattningar. Den analogiska metodens nackdelar förbättras genom tillämpandet av den nya kravspecifikationen där projekt delas i olika faser och tidsuppskattas separat enligt mikrostrategin inom tidsuppskattningar. Uppföljningsdokumentet samt den nya kravspecifikationen och den nya informationsstrukturen kommer enligt studiens slutsats att leda till flera positiva förändringar inom företaget. De nya förändringarna tillför större ansvar för den enskilde i projekt, bättre kunskapsdelning i företaget där erfarenhetsmässig kunskap kommer att ligga till grund för nya tidsuppskattningar, bättre beslutsunderlag för konsultchef samt för kund att lättare följa upp företagets tidsuppskattningar och hitta svagheter.Det finns olika strategier och många olika metoder inom strategierna för att tidsuppskatta ett IT-projekt. Dessa strategier och metoder skiljer sig mer eller mindre åt och många gånger har företag egna metoder för tidsuppskattning. Dessa strategier och metoder har samma syfte, vilket är att göra så noggranna tidsuppskattningar som möjligt för att undvika försenade projekt.</p><p>Examensarbetets syfte är att visa på hur LexiConsult AB kan förbättra sina tidsuppskattningar av inkommande IT-projekt genom att följa studiens rekommendationer, vilket leder till bättre tidsuppskattningar och nöjdare kunder. Undersökningen har utförts genom en litteraturstudie, där genomgång av de olika delarna inom IT-projekt skett. Det teoretiska kapitlet ligger senare till grund för den empiriska undersökning som utförts på företaget vilket ger insikt och perspektiv i hur företaget arbetar med sina projekt. Teorin visade att en bra tidsuppskattningsmetod inkluderar alla delarna i ett projekt och att dessa måste genomgås innan en bra tidsuppskattningsmetod kan tas fram.Det komplexa ämnet tidsuppskattning har gjort att en deduktiv ansats har valts för arbetet, där utgångspunkten ligger i teorin. Den djupa teorigenomgång som har utförts av författarna avspeglar sig i den kvalitativa forskningsmetod som valts för studien där syftet med metoden är att få djupare kunskap genom analyser och tolkningar i teori och verklighet. Författarna har försöktsäkerställa examensarbetets kvalité genom att beakta det insamlade materialets validitet, reliabilitet och relevans.De analyser som genomförs i arbetet där LexiConsults arbetssätt analyseras mot den teori som har genomgåtts leder till ett flertal rekommendationer i slutsatsen av arbetet. Företagets brister i informationsstruktur leder till rekommendationer om införandet av en databas med kategorier av de projekt företaget utför. Vikten av bra kravspecifikationer inom tidsuppskattning leder i slutsatsen till en förbättrad kravspecifikation med uppdelning av de olika faserna i projektet med tidsuppskattning och kommentarer på varje del. Vikten av bra uppföljning av projekt framhävs och rekommendationer ges till en uppföljningsmall, vilket resulterar i designen till en sådan. Företagets arbetsmetoder och historik tas tillvara och en analogisk tidsuppskattningsmetod rekommenderas för framtida projekts tidsuppskattningar. Den analogiska metodens nackdelar förbättras genom tillämpandet av den nya kravspecifikationen där projekt delas i olika faser och tidsuppskattas separat enligt mikrostrategin inom tidsuppskattningar. Uppföljningsdokumentet samt den nya kravspecifikationen och den nya informationsstrukturen kommer enligt studiens slutsats att leda till flera positiva förändringar inom företaget. De nya förändringarna tillför större ansvar för den enskilde i projekt, bättre kunskapsdelning i företaget där erfarenhetsmässig kunskap kommer att ligga till grund för nya tidsuppskattningar, bättre beslutsunderlag för konsultchef samt för kund att lättare följa upp företagets tidsuppskattningar och hitta svagheter.</p> / <p>There are many different strategies and different approaches within the strategies to estimate the time of an IT project. These methods and practices differ in several aspects and many times companies have developed their own method for estimating time. The common factors for these strategies and methods are the objectives, which is to make time estimation as accurate as possible, to avoid delays in projects. This study aims to show how LexiConsult AB can improve it’s time estimations by following the recommendations made in this study, which leads to reduction in their time estimates and better customer satisfaction. The study was conducted through a literature review of where the various components of IT projects are reviewed. The theoretical analysis is later the subject of the empirical investigation in the company giving instinct and perspective into how the company is working on their projects. The theory showed that a good time estimation method includes all the elements of a project and these must be examined before a good time estimation method can be developed.</p><p>Because of the complexity of this topic, a deductive approach was chosen for the study, where the starting point lies in the theory. The deep theory examination conducted by the authors is reflected in the qualitative research method chosen for study where the purpose of the method is to gain deeper knowledge through analysis and interpretation of the theory and reality.The authors have tried to ensure the quality of work by considering the collected material's validity, reliability and relevance.Because of the complexity of this topic, a deductive approach was chosen for the study, where the starting point lies in the theory. The deep theory examination conducted by the authors is reflected in the qualitative research method chosen for study where the purpose of the method is to gain deeper knowledge through analysis and interpretation of the theory and reality.The authors have tried to ensure the quality of work by considering the collected material's validity, reliability and relevance.</p><p>The analysis conducted in the study, is LexiConsult's project methods which are compared against the theory. These comparisons led to a number of recommendations in the conclusion of the study. The company's shortcomings in information structure area are identified and leads to recommendations on the establishment of a database with project categories. The importance of good requirements specifications for time estimation is identified and in the conclusion an improved specification is shown. The new specification has separated phases of the project with time estimates and comments on each part. The importance of good monitoring of the projects is highlighted in the study and recommendations are given to follow a template, resulting in the design of one. The company's working methods and use of the experience is indicative, and an analogy time estimation method is recommended for future time estimations. The analogical method has disadvantages that are improved through the new specification which the project is divided into different phases and time is estimated separately according to the Micro strategy for every phase. The recommendations made in this study leads to greater responsibility for individuals within the projects, better knowledge sharing in the company where old experiences will be the basis for the new time estimates. The new changes will lead to making the decision making within a project easier for both the costumer and LexiConsult AB.</p>