Modeling process of mechatronics systems. Software used with PLC and simulate real equipment. System has few samples of models with pneumatics elements and model with analog device. There are education materials for students too. Software has been used for education goal at university and kolege.

This work analysis model transformation problems in Model Driven Architecture (MDA). MDA is an architecture created by Object Management Group (OMG). MDA separates business and application logic from underlying platform technology. Platform-independent models of an application or system can be realized through the MDA on any platform. The most important MDA problem is a transformation between plarform-independent models (PIM) and platform specific models (PSM). Currently, there is no standard language for these transformations. Purpose of this work is to analize possible transformations. Two technologies will be researched: XSLT and QVT XSLT (Extensible Stylesheet Language Transformations) is a language for transforming XML documents into other XML documents. QVT (Queries/Views/Transformations) is a language for transforming models in MDA architecture. Aggregation systems will be used as models for transformations. Platform-independent model of aggregation system will be created and transformed to Java platform models using XSLT and QVT transformations.

Darbe analizuojama naudojamos web servisų technologijos, jų veikimo principai, aptariami jų mainų modeliai. Įvardinama technologijų stipriosios bei silpnosios pusės. Analizuojamas tokių sistemų taikymas B2B modeliuose. Remiantis gautais rezultatais bei įgytomis žiniomis projektuojamas biznio modelis web servisų pagrindu. Sukuriamas minimalus web serviso pritaikymo pavyzdys, bei pateikiami galimi web servisų pritaikymo variantai įmonių veikloje. / There are analyzed used technologies, working principles, discussed web services exchange models. Named strong and week aspects of used technologies. Also discussed web services practice in B2B models. A minimal web service example is created and the possible applications for company’s work are outlined.

Šio darbo tikslas – darbe išnagrinėta valdymo samprata, funkcijos ir struktūra. Taip pat analizuotos organizacinės valdymo struktūros, valdymo metodai bei vadovavimo stiliai. Sukurtas teorinis valdymo efektyvumo didinimo modelis. Kad ištirti, kokie aspektai turi įtakos valdymo efektyvumui, buvo atliktas tyrimas. Tyrime dalyvavo dvi skirtingo dydžio įmonės: X ir Y. tyrimas truko du mėnesius. Tiriamieji apklausiami buvo anketų pagalba. Vadovams ir darbuotojams buvo sudarytos skirtingos anketos. Tyrimo tikslas: išsiaiškinti skirtingų įmonių valdymo problemas bei pasiūlyti jų sprendimo būdus. Tyrimo objektas: Valdymo efektyvumas bei jo didinimo principai pasirinktose įmonėse. Tyrimo uždaviniai: § Nustatyti dominuojančias valdymo efektyvumo problemas pasirinktose įmonėse; § Ištirti, ar priklauso įmonės valdymo problemos nuo jos dydžio; § Nustatyti įmonės vadovų požiūrį į valdymo efektyvumą ir išsiaiškinti, ar jie įžvelgia valdymo problemas; · Išanalizuoti, kaip valdymo efektyvumas veikia darbuotojų pasitenkinimą darbu. Atlikus tyrimą buvo sumuojami ir analizuojami rezultatai, pateikiamos išvados, bei siūlymai, kaip būtų galima spręsti pastebėtas įmonių valdymo problemas. Darbą sudaro teorinė, analitinė ir rezultatų dalys. Teorinėje dalyje analizuojami teoriniai valdymo efektyvumo aspektai, analitinėje – nagrinėjami valdymo efektyvumo ir jo didinimo tema atlikti tyrimai Lietuvoje bei kitose šalyse. Rezultatų dalį sudaro atliko tyrimo analizė, išvados bei siūlymai. / This Work Explores Management Conception, Functions and Structure. There is also an Analysis of Organizational Management Structures, Management methods and styles of leadership. A Model of Management effectiveness increase was Developed. There was a research accomplished to explore the aspects having an impact on Management effectiveness. The research included two companies different in size: X and Y. The research took two months. People were surveyed using questionnaires. There were two types of questionnaires different for managers and employees. The object of investigation: the management and efficiency improvement of the principles of the selected enterprises. The object of the research – to clarify the different corporate governance problems and propose solutions Tasks of the research: · Set the prevailing problems in the efficiency of management in selected enterprises; · Investigate whether the company belongs to the management problems of its size; · Set the heads of the company approach to managing performance, and find out if they see the management problems; · Analyze the effectiveness of the management staff does the work. After the research was completed the results were summarized and analysed, conclusions and proposals introduced on possible ways to solve noticed problems of companies‘ management. The work consists of theoretical, analytical and result parts. The theoretical part contains an analysis of theoretic aspects of management effectiveness and the... [to full text]

Šiame darbe analizuojama MDE programų inžinerijos metodai, o taip pat OMG MDA ir Microsoft DSL Tools. MS DSL Tools - tai galingas priedas prie MS Visual Studio 2005, skirtas taikymo srities kalbų metamodelių kūrimui ir grafinių aplinkų darbui su jomis generavimui. Taip pat galima sukurti tekstinų šabloną, kuris gali transformuoti duotą modelį į programinį kodą. Darbe aprašomas sukurtas modeliavimo kalbos metamodelis. taip pat aprašoma tekstinių šablonų kalba, skirta modelių trasformacijom kurti. / This paper analyses MDE approach to software engineering as well as OMG’s MDA and Microsoft DSL Tools. MS DSL Tools are a powerful addition to MS Visual Studio 2005 for creating your own Domain Specific Language metamodels and generating IDEs for working with it. Then you can make a text template to transform your model directly into code. The work describes developed aggregate modeling language metamodel. It also explains text template language for model transformations. The research also includes analysis of the possibility to use model transformations to generate code for data acquisition form database.

Šiame darbe yra išanalizuotos problemos, susijusios su senomis verslo programų sistemomis ir pasiūlyti būdai joms spręsti. Pateikiami modeliai ir standartai, kuriais remiantis atliekama tokių verslo sistemų priežiūra ir modernizacija. Taip pat pateikiama schema, įgalinanti efektyviau ir paprasčiau prižiūrėti sistemas, atlikti jose pakeitimus, transformuoti bei migruoti seną programinę įrangą į naują aplinką. / In this paper, problems, related with legacy business software maintenance, are discussed in details and there are suggested solutions to solve them. There are some models and standards which are used to maintain the software systems. Also, maintenance techniques are discussed, which simplify maintenance processes and make them more effective. There is suggested a schema fits to maintain, renew, migrate and monitor business legacy software systems.

In this paper there are presented models for predicting juvenile hypertension using logistic regression and nonparametric discriminant analysis.

Science and Technology Parks are one of organizational forms, designed for development of innovations, coordination of science research, studies, technology creation and implementation activity, and initiative of new businesses. In addition to Science and Technology Parks, the organizations of the same purpose could be various Business Incubators, Innovation Centers, Technology Parks etc., however, precisely Science and Technology Parks, as organizational forms, distinguish for their efficiency and development prospects. Science and Technology Parks and development of their networks are necessary because of new challenges and problems, ascendant globalization, European Union expansion, knowledge and informational development. For this reason it is very relevant to examine and estimate the creation and development influence for economic growth of Science and Technology Parks and their networks, as well as parallel organizations, taking into account an international experience.

Science and Technology Parks are one of organizational forms, designed for development of innovations, coordination of science research, studies, technology creation and implementation activity, and initiative of new businesses. In addition to Science and Technology Parks, the organizations of the same purpose could be various Business Incubators, Innovation Centers, Technology Parks etc., however, precisely Science and Technology Parks, as organizational forms, distinguish for their efficiency and development prospects. Science and Technology Parks and development of their networks are necessary because of new challenges and problems, ascendant globalization, European Union expansion, knowledge and informational development. For this reason it is very relevant to examine and estimate the creation and development influence for economic growth of Science and Technology Parks and their networks, as well as parallel organizations, taking into account an international experience.

Stock prices are dynamic and changing frequently whenever the financial markets are opened. Many people aspire to know where prices are likely to be at future times. One of the basic problems, connected with stock valuation is to create an appropriate model of stock prices dynamics. This paper deals with the stock valuation models, such as binomial, additive, multiplicative, Brownian motion and etc. These models appeals to hypothesis, declaring that returns of stock follows by normal distribution and stock prices by lognormal one. The aim of this work is to test these hypothesis. The research of this paper discloses the basic tendency, announcing that stock is not applicable for a real adaptability of methods in Lithuanian companies because the returns of stock do not follow by the normal distribution. Disputed situation is opposite in companies of the USA. The returns of stocks are calculated by the following ways. They are numbered in the area of MS Excel. In order to review the conditions of normality, the SAS software was chosen. Finally, Delphi 10 programming language was selected for realization of the binomial tree.