Kompiuterinio raštingumo tematika atlikta nemažai tyrimų, apginta disertacijų, kas metai pateikiami kompiuterinio raštingumo monitoringo rezultatai – kompiuterinio raštingumo svarba ir būtinybė informacinės visuomenės plėtros kontekste įrodyta ir neginčijama. Aktualūs išlieka kompiuterinės kompetencijos vertinimo būdai ir priemonės, t.y. kompiuterinio raštingumo sertifikavimas. Šiame darbe aptariamos galimos ECDL programos 4 versijos klausimyno turinio kitimo tendencijos ir priežastys bei reikšmė ECDL sertifikavimo reikalavimų koregavimui. Darbo tikslas - pasiūlyti ECDL programos klausimyno 4.0 ir 5.0 versijų palyginimo metodą ir, remiantis ECDL programos 4.0 versijos turinio kitimo tendencijomis, pateikti reikalavimus Vilniaus universiteto Kauno humanitarinio fakulteto informatikos studijų programos koregavimui. Tikslui pasiekti įgyvendinti šie uždaviniai: įvertinti kompiuterinių įgūdžių sertifikavimo reikalavimų koregavimo poreikį; pasiūlyti ir aprašyti ECDL programos klausimyno 4.0 ir 5.0 versijų palyginimo metodą; numatyti ECDL programos 4.0 versijos turinio kitimo tendencijas bei priežastis; pateikti rekomendacijas VU KHF informatikos studijų programos koregavimui pagal ECDL programos 5.0 versijos reikalavimus. Siūlomam ECDL programos versijų palyginimo metodui pagrįsti, atlikta ECDL programos 4.0 versijos klausimyno pokyčių analizė, turinio pasikeitimo pobūdžio („Apjungta“, „Išskaidyta“, „Pakeista“, „Nauja“, „Nesikeitė“) ir turinio pasikeitimo priežasties („Aiškumas“... [toliau žr. visą tekstą] / The topic of digital literacy is not new. We can find it in some researches, defended dissertations and annual reports about computer literacy monitoring results – the importance and necessity of digital literacy is undeniable. However, the methods of the digital literacy competence assessments are still reliable. In this paper, we describe the most possible reasons of changing the content of ECDL syllabus version 4 and the ways of how the ECDL certification program must change. The goal of this paper is to suggest the original methodology of ECDL syllabus version item comparison; to provide the tendencies of how the ECDL syllabus content must change; to prepare a list of requirements for ECDL syllabus version 5 and basic informatics study program item coordination. The method of ECDL syllabus version item comparison was demonstrated by performing the research of ECDL syllabus version 4 to 5 item comparison in two ways: by analyzing the content of ECDL syllabus version 4 and syllabus version 5 and by comparing them together. Two aspects measured the results: ECDL syllabus version 4 status to ECDL syllabus version 5 (the fact of changing the content: “New”, “Changed”, “Split”, “Merge”, “Same”) and the reason of changing the content of ECDL syllabus version 4 (“Clarity”, “Quality”, “Currency”). Finally, we were able to prescribe how the ECDL syllabus version 4 was changed, how many new requirements were involved and how the ECDL certification program must change. At the end we... [to full text]

ECDL CAD testų administravimo sąsajos tyrimas. / Research of ECDL CAD Test Administration Interface.

ŽARENKOVA, Marija. (2009) ECDL testavimo scenarijų modeliavimas derinant įvairius testavimo būdus. MBA baigiamasis darbas. Kaunas: Vilniaus Universitetas, Kauno Humanitarinis Fakultetas, Informatikos katedra. 63 psl. S A N T R A U K A Darbo tikslas – sukurti ECDL testavimo scenarijų sudarymo metodiką derinant įvairius testavimo būdus. Kad tikslas būtų pasiektas, išskiriami šie uždaviniai: 1. Apžvelgti įvairias kompiuterių vartotojų sertifikavimo kompanijas ir iniciatyvas. 2. Apžvelgti ECDL programos paskirtį, tikslus ir privalumus. 3. Išanalizuoti testavimo būdų savybes. 4. Pasiūlyti ECDL testavimo būdų derinimo metodiką. 5. Patikrinti pasiūlytą metodiką e-Citizen programos testams sudaryti. Atliekant darbą buvo panaudoti šie tyrimo metodai – mokslinės literatūros analizė ir apibendrinimas, sprendimų modeliavimas bei modelio kūrimas, vartotojų apklausa, interviu su ekspertais ir stebėjimas. Remiantis pirmu metodu buvo rašoma teorinė dalis. Sprendimų modeliavimas naudojamas siūlomo sprendimo metodikoje. Modelio kūrimas naudojamas vykdant įvairius testavimo derinimo būdus ECDL testavimo scenarijuje. Interviu su ekspertais padeda išsiaiškinti sukurto scenarijaus efektyvumą. Vartotojų apklausa atskleidžia scenarijaus aiškumą. stebėjimas padeda įvertinti sukurto scenarijaus kokybę ir leidžia išsiaiškinti, kokie patobulinimai reikalingi. Pagrindiniai darbo teoriniai rezultatai: • Atlikta įvairių testavimo būdų analizė, kuri leido numatyti, kaip galima efektyviai panaudoti... [toliau žr. visą tekstą] / ŽARENKOVA, Marija. (2009). The Modelling of ECDL Testing Scenarios Using Different Testing Methods. MBA Graduation Paper. Kaunas: Vilnius University, Kaunas Faculty of Humanities, Department of Informatics. 63 p. S U M M A R Y The main purpose of the paper is to develop a methodology for ECDL testing scenarios using different testing methods. In order to achieve this purpose there are five tasks to do: 1. Review some companies that provide user certification. 2. Review ECDL mission, aims and advantages. 3. Evaluate the characteristics of the testing methods. 4. Analyse existing ECDL testing methods. 5. Combine different testing methods with the real ECDL testing scenario. To achieve these tasks such research methods as nonfiction analysis and summation, solution modelling and creating of the model, users survey, interview of experts, observation were used. The theoretical part was written with reference to the first method. Solution modelling was used to suggest the solution method. When different testing methods were combined with the ECDL scenario a model was created. Users’ survey revealed the transparency of the improved scenario. The interview of experts showed the efficiency of the improved scenario. The observation showed what could be edited in the scenario. The main theoretic results are: • Different testing methods were analysed. The analyse showed how to combine different testing methods efficiently with the different questions in the scenario. • The real ECDL... [to full text]

Neste trabalho serão apresentados novos métodos baseados na geração e controle de comprimento de onda em lasers aleatórios e lasers de diodo. Na primeira parte do trabalho será demonstrado um laser aleatório com realimentação localizada em filmes em biopolímeros dopado com corante. O filme é constituído por um ácido desoxirribonucleico e cloreto de cetiltrimetilamônio (DNA-CTMA) dopado com DCM. No dispositivo proposto, a realimentação óptica para o laser aleatório é dada por centros de dispersão posicionados aleatoriamente ao longo das bordas da área ativa. Os elementos de dispersão são nanopartículas de dióxido de titânio (TiO2) ou defeitos aleatórios na interface entre o polímero ativo e ar. Diferentes espectros de emissão são observados, dependendo da geometria da área excitada. Um único ressonador aleatório com dimensões de 2.6 x 0.65 mm2 foi fabricado com emissão aleatória com realimentação obtida pela excitação do dispositivo por completo. A segunda parte deste trabalho apresenta um novo método para a geração e manipulação de franjas de contorno por meio de interferometria speckle com comprimento de onda sintética, usando um único laser de diodo com cavidade externa. A cavidade externa permite sintonizar duas emissões simultaneamente, o que por sua vez muda o intervalo entre as franjas de contorno do interferômetro, além de aumentar a estabilidade do laser. Uma análise de Fourier é proposta como alternativa para medir o comprimento de onda sintético resultante das duas emissões do laser. / In this work, a new method is presented based on generating and controlling the wavelengths emitted by diode lasers and random lasers. In the first part of this work, resonant feedback random lasing from dye-doped biopolymer films is reported, consisting of a deoxyribonucleic acid and cetyltrimethylammonium (DNA-CTMA) complex doped with DCM dye. In the device, the optical feedback for random lasing is given by scattering centers randomly positioned along the edges of the active area. Scattering elements are either titanium dioxide nanoparticles or random defects at the interface between active polymer and air. Different emission spectra are observed, depending on the geometry of the excited area. A single random resonator with dimensions of 2.6 mm x 0.65 mm is fabricated and random emission with resonant feedback is obtained by uniformly pumping the full device. The second part of this work presents a new method for generating and manipulating contour fringes produced with a single external cavity diode laser in a multi-wavelength speckle interferometer. The external cavity allows tuning two simultaneous emissions, which in turn changes the contour interval of interference fringes and also improves laser stability. A Fourier analysis is applied as an alternative method for acquiring the resulting synthetic wavelength from both emissions.

Neste trabalho serão apresentados novos métodos baseados na geração e controle de comprimento de onda em lasers aleatórios e lasers de diodo. Na primeira parte do trabalho será demonstrado um laser aleatório com realimentação localizada em filmes em biopolímeros dopado com corante. O filme é constituído por um ácido desoxirribonucleico e cloreto de cetiltrimetilamônio (DNA-CTMA) dopado com DCM. No dispositivo proposto, a realimentação óptica para o laser aleatório é dada por centros de dispersão posicionados aleatoriamente ao longo das bordas da área ativa. Os elementos de dispersão são nanopartículas de dióxido de titânio (TiO2) ou defeitos aleatórios na interface entre o polímero ativo e ar. Diferentes espectros de emissão são observados, dependendo da geometria da área excitada. Um único ressonador aleatório com dimensões de 2.6 x 0.65 mm2 foi fabricado com emissão aleatória com realimentação obtida pela excitação do dispositivo por completo. A segunda parte deste trabalho apresenta um novo método para a geração e manipulação de franjas de contorno por meio de interferometria speckle com comprimento de onda sintética, usando um único laser de diodo com cavidade externa. A cavidade externa permite sintonizar duas emissões simultaneamente, o que por sua vez muda o intervalo entre as franjas de contorno do interferômetro, além de aumentar a estabilidade do laser. Uma análise de Fourier é proposta como alternativa para medir o comprimento de onda sintético resultante das duas emissões do laser. / In this work, a new method is presented based on generating and controlling the wavelengths emitted by diode lasers and random lasers. In the first part of this work, resonant feedback random lasing from dye-doped biopolymer films is reported, consisting of a deoxyribonucleic acid and cetyltrimethylammonium (DNA-CTMA) complex doped with DCM dye. In the device, the optical feedback for random lasing is given by scattering centers randomly positioned along the edges of the active area. Scattering elements are either titanium dioxide nanoparticles or random defects at the interface between active polymer and air. Different emission spectra are observed, depending on the geometry of the excited area. A single random resonator with dimensions of 2.6 mm x 0.65 mm is fabricated and random emission with resonant feedback is obtained by uniformly pumping the full device. The second part of this work presents a new method for generating and manipulating contour fringes produced with a single external cavity diode laser in a multi-wavelength speckle interferometer. The external cavity allows tuning two simultaneous emissions, which in turn changes the contour interval of interference fringes and also improves laser stability. A Fourier analysis is applied as an alternative method for acquiring the resulting synthetic wavelength from both emissions.

The thesis focuses on the process analysis of the ECDL concept, the so-called driver's license for a computer. The theoretical section provides the definition of the terms "process" and "process analysis", and describes the standards for process modelling and the methods for evaluating the effectiveness of processes. The theoretical section concludes with a description and comparison of the four options for testing computer skills in the Czech Republic - Microsoft Office Specialist, Atom, Prometric, ECDL. The practical section describes and graphically demonstrates the selected processes (Registration, Testing, Evaluation) and evaluates the effectiveness and financial demands of the ECDL concept processes. In its conclusion the practical section evaluates the feasibility of implementation of the proposed changes.

We combined an ECDL and the fluorescence detection system into a portable frequecy-stabilized laser.We installed an atomic cesium cell inside rather than outside the external diode laser cavity in order to minimize the frequency-stablized laser to palm size.In this way, we improved the mobility of the frequecy-stabilized laser. Moreover, the enhanced intensity of laser inside the external cavity increased the signal to noise ratio of the error signal for feedback control. We used Allan variance as an efficient method to quantify noise of the laser and we found the best value was 2.9954E-12 when the time integration was 90 second and the line width of laser was 200 kHz by beat frequency. This design can be exploited to lock the offset frequency of a femtosecond frequency comb laser, thus being helpful in the reaserch of CEP(carrier-envelope phase) light source.

Modern youth will live in the world of quick changes when industrial society will change into information society. That’s why the reform of Lithuanian Education faces changes according to present information requirements. The shortage of appropriate program equipment is a serious obstacle to successful integration of computer science into educational process. Teaching chemistry we can do much accommodating various innovations, creating new teaching facilities, using experiments and modeling programs. Feed-back is very important as well. The knowledge must be tested. Combining ordinary testing with modeling we can achieve good results and educational process would become more attractive, motivation would increase. In this work needs and opportunities of applying computer science in chemistry lessons will be analyzed. Computer appliance in teaching how to solve chemistry problems at school has been created. It consists of three parts: teaching material (triangle „The solving of chemistry problems“), Visual Basic models and TestTool tests. The device will be useful for students who want to learn solving chemistry problems or want to revise the course. The web-page „Solving Chemistry Problems“ is of high quality and meets the needs of learners. Visual Basic models satisfy the teachers requirements and show the best learning way. The tests correspond to the curriculum, are reliable and useful.

ECDL programa skirta kompiuterinio raštingumo įgūdžiams formuoti ir tobulinti. Šios programos pasiekimas yra tai, kad nustatytas standartas kompiuterio vartotojo žinioms ir įgūdžiams sertifikuoti. ECDL sertifikavimas iš pradžių buvo atliekamas rankiniu būdu. Vėliau buvo pereita prie kompiuterizuoto testavimo, tam sukuriant specialias testavimo sistemas. ECDL programoje įgytų įgūdžių įvertinimui Lietuvoje naudojama testavimo sistema dirba su interneto klientais. Teisę prie jos jungtis turi tik įgaliotieji ECDL testavimo centrai. Testavimo sistemos užduotys yra keleto tipų: pagrįstos tiesioginiu atlikimu, imitavimu, spragtelėjimo ir tempimo, „tiesa/netiesa“ pasirinkimu bei daugybiniu pasirinkimu. Iki šiol nėra spręsta problema, ar efektyviai realizuotoje testavimo sistemoje atliekamas įvairių užduočių tipų tikrinimas, ar testuojant atsižvelgiama į žmogaus įgūdžių kokybę. Kadangi ECDL testų tikrinimas vykdomas tiek rankiniu būdu, tiek automatizuotu būdu, todėl būtų labai naudinga išanalizuoti įvairius testavimo būdus ir įvertinti rankinio ir automatizuoto testavimo būdų galimybes kokybės požiūriu. Pasirinkta tyrimų sritis yra pakankamai plati, apimanti efektyviausių testavimo metodų, vartotojų reakcijos į testus problemas. Tiek užsienyje, tiek Lietuvoje yra atlikta nemažai tyrimų, siekiant sukurti efektyvų vartotojų testavimo metodą ar patobulinti jau esamus. Šio tyrimo objektas – ECDL rankinio ir automatizuoto testavimo būdų galimybės. Tyrimo tikslas – išanalizavus ir įvertinus... [toliau žr. visą tekstą] / The problem of ECDL testing methodologies in approach to quality is disputed in this master’s work. This work studies ECDL testing methodologies and their problems, analyses the pros and cons of automated test assembly and computer adaptive testing methods. It also analyses the advantages and disadvantages of automated and manual testing. The purpose of this work is to suggest a new ECDL testing system architecture, which ensures effective and efficient testing of people’s computer skills and competence, as the quality of those computer skills is very important. The objects of this paper are the possibilities of ECDL manual and automated testing. The main goal – is to suggest a new ECDL testing system architecture, after analyzing and evaluating ECDL testing possibilities. The main tasks of this master’s work are: to evaluate testing methods in approach to quality; to suggest a new ECDL testing system conceptual architecture model, which includes best practice management sub-system; to find best practice elements according to ECDL Advanced Syllabus 1.0; to perform experiments connected with the use of best practice elements in the ECDL Advanced testing. The main results of the research. The expert survey was conducted in order to find out, what experts think about the need to complete ECDL tasks correctly and with a touch of quality. The second purpose of this survey was to find out, if best practice elements are needed, and if yes, then for which ECDL modules. The results... [to full text]

Šiais laikais kompiuteris daugeliui iš mūsų reiškia taip daug, kad mes jau nebeįsivaizduojam be jo savo gyvenimo, konkrečių darbų atlikimo ir netgi laisvalaikio. Kad darbas kompiuteriu būtų ne tik naudingas ir prasmingas, bet ir įdomus, kiekvienas iš mūsų turėtų būti susipažinęs su įvairiomis jo funkcijomis ir mokėti atlikti bent minimalias užduotis, palengvinančias kasdienį mūsų darbą. Kadangi įvairios IS ir IT yra naudojamos daugelyje sričių, kompiuterinis raštingumas gali būti vertinamas įvairiais aspektais: sociologiniu, psichologiniu, informatikos ir pan., o konkrečias temas nagrinėja vadybos, ekonomikos, politikos mokslai ir kiti. Kiekvienoje šalyje kompiuterinio raštingumo lygio rodikliai yra suprantami ir nustatomi skirtingai. Kadangi pastaruoju metu kompiuteriai yra naudojami beveik visose įmonėse, yra svarbu užtikrinti darbuotojų įgūdžių tobulinimą bei įsisavinimą. Todėl svarbu yra mokėti naudotis svarbiausiomis kompiuterinėmis programomis bei teisingai įvertinti darbuotojų įgūdžius, o tai yra viena iš svarbiausių problemų, nes įvertinti įgūdžius ir žinias yra labai sunkus uždavinys. Vienu iš labiausiai žinomų ir naudojamų kompiuterinio raštingumo testavimu ir sertifikavimu Lietuvoje užsiima įgaliotoji ECDL atstovybė ir jos įkurti autorizuoti testavimo centrai. Problema yra ta, kad ne visi gali naudotis ECDL programos teikiamomis paslaugomis dėl įvarių priežasčių: kadangi šie mokymai ir testavimai yra mokomi arba todėl, kad trūksta laiko. Jei mes norėtume ištirti... [toliau žr. visą tekstą] / The Information Technology becomes an important part of our everyday lives and changes the way of our living via the Internet. Many traditional services are being replaced by their electronic counterparts. Besides, it is not only a communication way, but it also saves resources of a company. This tendency faces a barrier – capability of citizens or the labour force to understand and use different kinds of Information Technology. The main idea of this work is to find a way how the gap between the perceived and the actual states of the digital literacy could be calculated. Also these tasks are choosesen: 1. to analyze the areas and problems of a digital literacy; 2. to find a new model to solve the existing problem; 3. to use new model in a practics; 4. to analyze testing results and evaluate the advantages of used model. Such methods are used in the work:  analysis of scientific literature;  statistics analysis;  interview;  experiment measurements;  observation The new model of a testing was created and analyzed. The model consists of two parts: Digital Literacy Self Assessment and Digital Literacy Practical Assessment. It was used in experiments that are described in the work. As the result of this we can see that a gap exists between the ‘perceived’ state of Digital Literacy and the ’actual state”. Self assessment results were compared with a real situation. As the main results of mentioned experiments we can tell that such researches... [to full text]