Design patterns in software systems are described as a universal reusable solution to a commonly recurring problem in software design. Design patterns were, however, not intended to be reusable in terms of code. A symptom of their non-reusability is the problems experienced with the way the implementation of design patterns negatively affects their traceability, maintainability and contribution to productivity. This thesis shows how design patterns can be elevated to a higher level of reusability. This work presents design patterns as reusable components that developers can use to implement solutions that utilise patterns, without having to implement a major part of a pattern’s structure and behaviour anew each time. A component is a reusable software section, with possible library classes, that is usually in source form. Previous research has shown that a high proportion of patterns (65%) can be “componentized” in Eiffel, which leads to the idea that a language supporting the same set of features would also have the same success in pattern componentization. This thesis has looked at the componentization of twelve design patterns in C#. The C# language has more advanced language features than Eiffel, including functional and dynamic language features and, as such, should lend itself better to pattern componentization than Eiffel does. The language features that are reviewed in this thesis are inheritance, design by contract™, attributes, method references (or delegates), anonymous functions, lambda expressions, mixins (or extension methods), duck typing, dynamic types and meta-programming. Each pattern’s reusable components are discussed in detail, including the success of the reusable component transformation. All the design patterns reviewed in this thesis could be transformed into fully or partially reusable components. Implementing design patterns using reusable library components is thus a step in the right direction in making design pattern implementations more traceable, reusable, maintainable and more productive. Other object-oriented languages implementing the same or similar language features as those reviewed in this thesis should have the same level of success in transforming design patterns into reusable components. / Dissertation (MSc)--University of Pretoria, 2013. / gm2014 / Computer Science / unrestricted

Η παρούσα εργασία θέτει ως βασικό ζητούμενο διερεύνησης τη μελέτη και την αποτίμηση της αφηγηματικής ικανότητας, όπως και τη χαρτογράφηση της εξέλιξής της κατά τη προσχολική (4-6) και πρωτοσχολική ηλικία (6-9). Επίσης, αναζητά το ενδεχόμενο η αφηγηματική ικανότητα των παιδιών να επηρεάζεται από κοινωνικομορφωτικούς παράγοντες. Η ερευνητική διαδικασία έλαβε χώρα το 2013 και στη διάρκειά της το δείγμα των συμμετεχόντων (εξήντα τέσσερις στο σύνολο) χωρίστηκε στις τέσσερις ηλικιακές ομάδες (προνήπια, νήπια, Α΄ και Γ΄ τάξης), οι οποίες αποτελούνται από δεκαέξι παιδιά (μισά αγόρια και μισά κορίτσια). Επίσης η διαμόρφωση των ομάδων των ομάδων εξυπηρετεί και τη μελέτη της επιρροής των κοινωνικομορφωτικών παραγόντων. Η ερευνητική διαδικασία πραγματοποιήθηκε σε δύο φάσεις. Στην πρώτη φάση όλοι οι συμμετέχοντες και των τεσσάρων ηλικιακών ομάδων διηγήθηκαν μια ιστορία. Στη δεύτερη φάση οι συμμετέχοντες νηπιακής ηλικίας και της Γ΄ τάξης του Δημοτικού αναδιηγήθηκαν μια ιστορία, αφού πρώτα είχαν παρακολουθήσει την ανάγνωσή της. Τα αφηγηματικά κείμενα των συμμετεχόντων ηχογραφήθηκαν και στη συνέχεια αναλύθηκαν με βάση τη μέθοδο της «Πυραμίδας των ιστοριών» (Curenton & Lucas, 2007). Η ανάλυση των εγγράμματων γλωσσικών στοιχείων και της λεξιλογικής ποικιλίας των αφηγήσεων των παιδιών παρουσιάζει την εξέλιξη στη χρήση του εκτενή λόγου από τους συμμετέχοντες, καθιστώντας τις αφηγήσεις τους γλωσσικά πολύπλοκες και σαφείς. Επίσης η ανάλυση των αφηγηματικών δεδομένων των συμμετεχόντων και των δύο φάσεων παρουσιάζει την εξέλιξη της αφηγηματικής τους ικανότητας, η οποία ακολουθεί στο μεγαλύτερο μέρος του δείγματος την ηλικιακή ωρίμανσή τους, όπως συμβαίνει και στην εξέλιξη της χρήσης του εκτενή λόγου. Συμπερασματικά, η παρούσα μελέτη παρουσιάζει μια ενθαρρυντική εικόνα για τους συμμετέχοντες της τάξης του νηπιαγωγείου και μια πολλά υποσχόμενη αναπτυξιακή πορεία για τα προνήπια του δείγματος. Όμως, τα αποτελέσματα της έρευνας αναφορικά με την αφηγηματική ικανότητα των παιδιών που συμμετείχαν στην έρευνα της Α΄ τάξης του Δημοτικού εμφανίζουν μια μεταβατική εικόνα, η οποία χρήζει περαιτέρω διερεύνησης. Τέλος, τα αποτελέσματα της έρευνας δείχνουν ότι οι αφηγήσεις των συμμετεχόντων της Γ΄ τάξης του Δημοτικού είναι σε μεγαλύτερο βαθμό γλωσσικά πολύπλοκες και σαφείς και αφηγηματικά καλά δομημένες, έναντι των μικρότερων ηλικιών. / The research which was carried out set as its fundamental objective the study and the assessment of narrative skill as well as the determination of its development during preschool(4-6) and first school (6-9) age. As sample of the research sixteen children were selected (eight boys and eight girls) for each of the four age-related groups: preschoolers, infants, A΄ and C΄ class of primary school. Based on discoveries of previous researches we wanted, also to examine the possibility that the narrating skill of children is affected by social-educational factors. For the investigation of this potential, half of the children from each age-related team belong to “social category 1”, that is to say both of their parents have a degree in tertiary education and the other half belong to “social category 2”, the parents of which are secondary or first degree education graduates. During the inquiring process all participants of all four age-related groups watched the silent movie of animated cartoons “The ugly duckling” and afterwards they told the story, which was recorded. Then, in a second phase of the research, the team of infants and of C’ class of primary school, were called to watch the narration of the book “All together in a blue couch” and afterwards to retell the story based on the pictures of the book, without the words of the writer. The retelling was recorded. The analysis of narrating data of children of both phases presents the development of narrating skill, which follows, in the bigger part of the sample, their age-related maturity. Simultaneously, however, it is also the development in the use of extended discourse by the participants, which renders their narrations linguistically complicated, explicit and narratively good structured. But the results of the research reveal also two extra elements that cause our reflection. First is the likely influence of social-educational factor mainly in the story structure and less in the language structure of the narrations of A΄ class of primary school students. The second is the declining tendency of the linguistic and narrating structure of the narrations of A΄ class primary school students. In conclusion, the present research supports that possibly the children of infant age, of the present research seem to present higher narrating skills than the A΄ class students and use it in their narrating texts, more extended than that of the A΄ class students. Finally, the evolutionary course of narrating skill is also confirmed by the narrations of the C΄ class of primary school participants, as well as the bigger and more frequent use of extended speech by children of this age.

在作者歸屬的研究中，語言特徵的選擇一直是很重要的一環，因為會反映到整個預測結果表現。大多數常用的語言特徵雖然在分類上表現優異，像是高頻詞彙、n-grams、及標點符號等，但這些語言特徵內的詞組卻無法解釋分類間的因果關係及相互差異。為了解決這問題，本論文提出詞性組合、否定程度組合及情態詞組合共3種具有語言學意義的語言特徵作為輔助驗證，並以雷震這位作者的文本為基準，探討在「同主題不同作者」及「同作者不同主題」兩個研究方向上是否適用。本論文將會使用隨機森林演算法建立分類模型，使用OOB錯誤率評估分類模型分類表現，並透過重要特徵數值找出各詞組作為決策點的權重。最後希望能從分類規則中，找出不同作者以及不同類型間語言特徵的獨特性詞組並做解釋。 / In the study of authorship attribution, the choice of language features have always been a very important part because it reflects the performance of the whole prediction. Most of the commonly used language features are excellent in classification, such as word frequencies, n-grams, and punctuation, but the phrases within these language features can not explain the causal relationship between categories and the differences between them. In order to solve this problem, this paper proposes 3 kinds of linguistic meaning as a auxiliary verification, and based on the Lei-Chen 's text, discussed "different authors with same topics" and "different genres with same author" is applied on the two research directions. In this paper, we will use the random forest algorithm to establish the classification model, use the OOB error rate assessment classification model classification performance, and through the important feature values to find the weight of each phrase as a decision point. Finally, we hope to find out unique phrases of different authors and different genres of language features from the classification rules and explain them.

An alteration in the function of the brain caused by an external force is called a Traumatic Brain Injury (TBI). There are language features located in different areas of the brain, and depending on where a person gets a TBI, the person can experience different communicative difficulties. These can manifest as aphasia, dysarthria or cognitive communicative disorders. The experiences of TBI that have been discovered in previous studies are for instance about how persons with TBI experience their diminished functions, life adjustment after the injury, the role and support of the relatives, that the environment treats them differently after the injury and emotional consequences. For the purpose of investigation and intervention, ICF is a useful tool since the difficulties that a person may have can be connected to its various components. The purpose of this study is to examine what experiences persons with TBI have regarding their brain injury and their communicative difficulties, and also how these can be connected to ICF. To answer the research questions, a qualitative method involving content analysis was used, based on semi-structured interviews with four participants. The participants expressed that their TBI had affected them in various ways, communicative, cognitive, physically and socially. The participants experienced their injuries and difficulties as limiting and that some periods had been lonely. However they also stated that there were some positive aspects in the situation, for example improved family relations and that they valued life in another way. Although the injuries, difficulties and rehabilitation of the participants have differed, the participants stories have been similar to some extent. In the future it would be interesting to conduct further studies in Sweden that examine which experiences persons with TBI have regarding the injury itself, but particularly regarding their communication after the TBI. It is important with more studies since that would give speech language pathologists a greater understanding for how people with TBI experience their situation and their communication after the injury. / Traumatisk hjärnskada (TBI) innebär att ett yttre våld har orsakat en förändring av hjärnfunktionen. I hjärnan finns språkliga funktioner som är belägna inom olika delar av hjärnan. Beroende på var i hjärnan en person får en TBI, leder det till olika kommunikativa svårigheter. Svårigheterna kan yttra sig som afasi, dysartri eller kognitiva kommunikativa störningar. De upplevelser av TBI som har framkommit i tidigare studier handlar bland annat om hur personer som har TBI upplever sina nedsatta funktioner, livsomställningen efter skadan, anhörigas roll och stöd, att omgivningen behandlar dem annorlunda efter skadan och emotionella konsekvenser. Vid utredning och behandling är ICF ett användbart verktyg eftersom att en persons svårigheter kan kopplas till ICF:s olika komponenter. Syftet med föreliggande studie är att undersöka vilka upplevelser personer som har TBI har erhållit i relation till sin hjärnskada, deras kommunikativa svårigheter samt hur dessa kan kopplas till ICF. För att besvara frågeställningarna användes en kvalitativ metod med semi-strukturerade intervjuer av fyra personer och innehållsanalys av dessa. Deltagarna i föreliggande studie uttryckte att deras TBI hade påverkat dem på olika sätt: kommunikativt, kognitivt, fysiskt och socialt. Deltagarna upplevde sina skador och svårigheter som begränsande och att de i vissa perioder hade upplevt isolering. De berättade dock att det fanns positiva aspekter av situationen såsom förbättrade familjerelationer och att livet värderades på ett annat sätt. Trots att deltagarnas skador, svårigheter och rehabilitering har skiljt sig åt, har deltagarnas berättelser haft likartad karaktär, även om de också till viss del har varierat. I framtiden vore det intressant med fler svenska studier som undersöker vilka upplevelser personer som har TBI har i relation till sina hjärnskador, men framförallt gällande sin kommunikation efter hjärnskadan. Det skulle vara betydelsefullt med fler studier eftersom att det skulle ge logopeder en större förståelse för hur personer som har TBI upplever sin situation och sin kommunikation efter skadan.

In the vision of Ambient Intelligence, people are assisted in their everyday activities through the proactive, opportunistic support of non-intrusive computing devices offering intuitive interaction modalities. The usefulness and quality of delivered services can be improved considerably if the devices are able to adapt their behaviour according to sensed changes in their surrounding environment, both at the physical and logical levels. This interplay between context-awareness and dynamic software adaptability is key to the construction of applications that are smart with respect to user needs. Unfortunately, most current applications do not reach this level of adaptability, due to a lack of appropriate programming technology. Most applications exhibit fixed functionality and seldom do they sense their environment and adapt their services in a context-aware fashion. Many chances of delivering improved services to users and network peers are thus missed. This dissertation presents a programming model to ease the construction of applications that can react to changes in their execution context by adapting their behaviour dynamically. The starting point of our research is the development of novel language abstractions and the adaptation of existing abstractions to render context-aware, self-adaptable applications easier to develop. We demonstrate that a simple yet powerful computation model readily provides the needed support, leading to straightforward application code that is not concerned with context adaptation, behaviour that can be adapted dynamically to different contexts in a non-intrusive fashion, and context-aware applications with software architectures that are not biased towards context adaptation ---rather, they can be designed freely according to their domain. The proposed computation model is realised through the Ambience programming language, and its underlying open implementation, the Ambient Object System. A small-step operational semantics describes it formally. Much in the vein of prototype-based programming, the model has been designed with simplicity and concreteness in mind. It is highly dynamic, featuring dynamic (multiple) dispatch, dynamic inheritance, dynamic typing, and dynamic method scoping. Application logic adaptation is enabled by means of an intuitive, first-class reification of context that is straightforwardly connected to dynamic behaviour selection. We describe needed management techniques for such context, and a few programming guidelines on how to develop context-aware applications using our approach. The approach is validated by showing its application in a number of scenarios inspired on Ambient Intelligence.

В настоящей работе проводится структурно-языковое изучение современной литературной волшебной сказки. Дается определение сказки как фольклорного и литературного жанра, систематизируются основные жанровые особенности сказки. Обобщая методологические аспекты изучения сказки, автор дает дефиницию и типологию волшебной сказки. Проводится анализ функций персонажей и волшебных средств в сказках. Рассматриваются основные языковые особенности сказки и способы ее перевода. Материалом для исследования служат сказки из сборника современных зарубежных авторов «The Kingfisher Book of Magical Tales», переведенного с английского на русский язык автором магистерской диссертации. / In this master’s thesis, a structural and linguistic study of a modern literary fairy tale is carried out. The definition of a fairy tale as a folklore and literary genre is given, the main genre features of a fairy tale are systematized. Summarizing the methodological aspects of the study of fairy tales, the author gives the definition and typology of a fairy tale. The analysis of the functions of characters and magical means in fairy tales is carried out. The thesis also considers the main linguistic features of the fairy tale and the ways of its translation. The material for the study is fairy tales from the collection of modern foreign authors "The Kingfisher Book of Magical Tales", translated from English into Russian by the author of the master's thesis.