Using web-based knowledge management systems has become the mainstream when enterprises adopt the strategy of knowledge management. With the accumulated amount of materials, the issue of information reuse is emphasized, and how to properly design a knowledge management system to improve the efficiency of information reuse is becoming extremely important. In the past there were two approaches for improving the efficiency of information reuse. One is knowledge map that focuses on information retrieval to promote the efficiency, and the other is usability of Human-Computer Interaction that focuses on the effect of different information representation styles and the user's liking. According to Task-Technology Fit, the greater the degree of adherence to an ideal fit profile, the better the performance. In this study we discussed the impact of information presentation styles on information reuse with different reuse tasks on knowledge management systems. The study is intended as an experimental design to investigate the impact of information presentation styles on information reuse within a knowledge management system. We use an experiment involving 83 subjects. The results of this study indicate that information presentation styles have a significant impact on information reuse. We found that for retrieval tasks, the impact on information reuse would be enhanced with the hierarchical presentation style. Additionally, the result also shows that when increasing the complexity of the task, information presentation styles have no differences to the impact on information reuse. And according to the results of two kinds of questionnaires, the users all had higher liking and partialities for the hierarchical presentation style. Finally, suggestions for the vision information design based on the results of this study are provided.

The purpose of this study was to investigate whether learners' computer self-efficacy and prior computer knowledge influence their performance and satisfaction when presented with various instructional strategies of information presentation in computer-based software training. Seventy-eight undergraduate students were randomly assigned into four groups (a) deductive-inquisitory, which present general information first and then require learner to generates examples, (b) deductive-expository, which present general information first then present examples, (c) inductive-inquisitory, which present examples first and then require learners to discover relationship, (d) inductive-expository, which present examples first then present general information. The instructional materials were computer-based Netscape Composer 7.1 tutorials. For the comparison of inductive-inquisitory and inductive-expository groups, results indicated that learners with higher computer self-efficacy not only performed better but also were more satisfied towards inductive-inquisitory strategy for information presentation. Learners with low computer self-efficacy benefited more from the inductive-expository approach of information presentation. Furthermore, for the comparison of deductive-expository and inductive-expository groups, learners with high computer self-efficacy performed better in deductive-expository strategy, while learners with low computer self-efficacy benefited more in inductive-expository strategy. Some of the research recommendations for further research included using a larger sample size for the generality of the finding, measuring how different instructional strategies influence the learners' long term memory, and exploring other possible moderating factors and other strategies for information presentation that has positive impact on learners' performance in and satisfaction towards computer based software training.

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The construction industry's environment is continually changing. Employees are now more geographically widespread and diverse, both culturally and educationally, than ever before. A great deal of research has been carried out on knowledge acquisition and storage, but there is still a distinct lack of research into knowledge presentation and communication. Information and knowledge presentation play a significant role in daily decision-making processes, when inappropriate decisions may result from inaccurate or poorly communicated information. The simplified, filtered coherent presentation of explicit knowledge can be instrumental to a successful, profitable and safety conscious business. Wates Construction is a major construction company and employs around 1300 people directly, as well as various subcontractors on different projects. Their current turn over is around £1billion, they are based in the UK and have branches in Ireland and Abu Dhabi. Wates realised their existing information system was inefficiently conveying information to its employees and the need to provide a simplified system, to assist staff's decision-making processes. Earlier IT professionals' attempts to make the system more usable had made no significant difference to its performance.

Diversos sistemas computacionais transmitem informação em fluxos contínuos de dados estruturados e, por vezes, hierarquizados. Este modelo de transmissão de dados tem como uma de suas características a grande densidade de informação, o que exige de um receptor o tratamento imediato das unidades extraídas deste canal de comunicação. Muitas vezes o volume de transmissão não permite, também, que a informação recebida seja armazenada permanentemente no receptor, o que torna a análise do conteúdo desses fluxos de dados um desafio. Este trabalho apresenta uma arquitetura para a análise de fluxo de dados estruturados aplicado à hierarquia lógica definida pelo Sistema Brasileiro de TV Digital para a transmissão de programas de televisão, validada por meio de uma implementação de referência completamente funcional. / Various computing systems transfer data in structured data streams which also happen to be, sometimes, hierarchically organized. Such data stream model is characterized by the dense amount of information transmitted, which requires the receiver to immediately manipulate the elements extracted from that communication channel. The high rate in which data flows also makes it hard, if not impossible, for the receiver to store the desired information in its memory, which makes data flow analysis especially challenging. This work presents a novel structured data flow analysis architecture applied to the logical hierarchy defined by the Brazilian Digital TV System for the transmission of television programs, validated by means of a fully functional reference implementation.

Diversos sistemas computacionais transmitem informação em fluxos contínuos de dados estruturados e, por vezes, hierarquizados. Este modelo de transmissão de dados tem como uma de suas características a grande densidade de informação, o que exige de um receptor o tratamento imediato das unidades extraídas deste canal de comunicação. Muitas vezes o volume de transmissão não permite, também, que a informação recebida seja armazenada permanentemente no receptor, o que torna a análise do conteúdo desses fluxos de dados um desafio. Este trabalho apresenta uma arquitetura para a análise de fluxo de dados estruturados aplicado à hierarquia lógica definida pelo Sistema Brasileiro de TV Digital para a transmissão de programas de televisão, validada por meio de uma implementação de referência completamente funcional. / Various computing systems transfer data in structured data streams which also happen to be, sometimes, hierarchically organized. Such data stream model is characterized by the dense amount of information transmitted, which requires the receiver to immediately manipulate the elements extracted from that communication channel. The high rate in which data flows also makes it hard, if not impossible, for the receiver to store the desired information in its memory, which makes data flow analysis especially challenging. This work presents a novel structured data flow analysis architecture applied to the logical hierarchy defined by the Brazilian Digital TV System for the transmission of television programs, validated by means of a fully functional reference implementation.

Tyrimo objektas – natūralios kosmetikos vartotojų informaciniai poreikiai. Tyrimo tikslas – ištyrus natūralių kosmetikos produktų vartotojų informacinius poreikius, parengti rinkodaros komunikacijos kanalo ,,gamintojas – vartotojas“ modelį. Uždaviniai: 1) Atskleisti rinkodaros komunikacijos poveikį vartojimui teoriniu aspektu. 2) Išanalizuoti natūralių kosmetikos produktų rūšis, kokybinius reikalavimus ir sertifikavimo sistemas Europos Sąjungoje bei Lietuvoje. 3) Nustatyti natūralių kosmetikos produktų vartotojų informacinius poreikius. 4) Parengti rinkodaros natūralių kosmetikos produktų informacijos srauto „gamintojas – vartotojas“ modelį. Tyrimo metodai - mokslinės literatūros analizė ir sintezė, dvi anketinės apklausos (dviem segmentais: profesionalūs kosmetikos naudotojai (tarpininkai) ir jų klientai), grafinis vaizdavimas ir modeliavimas, duomenų grupavimas, analizė bei rezultatų apibendrinimas. Tyrimo rezultatai. Pirmoje darbo dalyje išnagrinėtas rinkodaros komunikacijos poveikis vartotojui teoriniu aspektu. Pateiktas susistemintas rinkodaros komunikacijos teorinis modelis. Antroje darbo dalyje išanalizuotos natūralių kosmetikos produktų rūšys, pateikti kokybiniai reikalavimai, sertifikavimo sistemos Europos Sąjungoje bei Lietuvoje. Taip pat išanalizuotas natūralios produktų grupės LAKSHMI ypatumai sertifikavimas. Trečioje darbo dalyje pateikta tyrimo eigos schema. Išanalizuotas informacijos judėjimas nuo gamintojo iki vartotojo. Pateikti anketinių apklausų duomenys... [toliau žr. visą tekstą] / Research object - consumer information needs for natural cosmetics. Research target – to design communication marketing “manufacturer - user” model considering results of exploring customer information needs about natural cosmetic products. Objectives: • To reveal the marketing communication influence for using by theoretical aspect. • To analize the natural cosmetic sorts, quality requirements and the certification systems in the Europe Union and Lithuania. • Set of natural beauty products for consumer information needs. • To develop natural cosmetic products marketing information flow "manufacturer - user" model. Research methods: Scientific literature analysis and synthesis of the two questionnaire surveys (two segments: professional cosmetic users (agents) and their clients), and graphical modeling, data aggregation, analysis and conclusions. Research results: In the first part of research analysed marketing communication effect for consumers from theory aspect and provided systematic theoretical model of marketing communication. In the second part of research analysed natural cosmetic product types and presented the qualitative requirements for the certification system in the European Union and Lithuania. Also analyzed the natural product group features of Lakshmi. In the third part of the study composed schema of research process, . analyzed information flow from manufacturer to user. Also submited a questionnairebased by surveys and developed marketing... [to full text]

Modern manufacturing systems seem to be shifting from mass production to mass customisation, which means that systems must be able to manage changes in customer demands and requirements, new technology as well as environmental demands. This in turn leads to an increase in product variants that need to be assembled. To handle this issue, well designed and presented information is vital for assembly workers to perform effective and accurate assembly tasks. In this thesis the main focus has been to find factors that affect human performance in manual assembly. A literature review was made on the subject of manufacturing and usability as well as basic cognitive abilities used to utilise information, such as memory. This investigation identified applicable factors for assessing human cognitive performance within the research field of manufacturing. The thesis further investigates how some of these factors are handled in manual assembly, using case studies as well as observational studies. The results show that how material and information are presented to the assembler needs to be considered in order to have a positive effect on the assembly operation. In addition, a full factorial experimental study was conducted to investigate different ways of presenting material and information at the workstation while using mixed assembly mode with product variants. The material presentation factor involved the use of a material rack compared to using an unstructured kit as well as a structured kit and the information presentation factor involved using a text and number instruction compared to a photograph instruction. The results showed that using a kit is favourable compared to the traditional material rack, especially when using a structured kit combined with photographic instruction. Furthermore, the use of unstructured kits can lead to better productivity and reduced perceived workload, compared to a material rack. Although they are perhaps not as good as using a structured kit, they most likely bring a lower cost, such as man-hour consumption and space requirements. However, the number of components in an unstructured kit needs to be considered in order to keep it on a manageable level. As a conclusion, several scenarios were developed in order to understand how different assembly settings can be used in order to improve human performance at the assembly workstation.