The study deals with the features open source CRMs have, the ways we can change the code and make our own open source CRM system. The research is oriented to Web based CRMs. One open source CRM system is modyfied and translated into the Lithuanian language. Installation files were created for people who do not know databases and Web services software in order to help them install this CRM system and configure database as well as other system requirements. The final result of our work is open source CRM system called „OfisasTinkle2006“. This product is used by a couple of firms in their business sphere.

GIS is one of the most perspective information technology sciences sphere. GIS conjuncts the digital image analysis and data base systems. This makes GIS wide applicable and very high skills demanding system. There is a lot of commercial GIS software which is well advertised and which functionality is pretty well known, while open source software is forgotten. In this diploma work is made analysis of available open source GIS software on the Internet, in the scope of different projects interrelations, programming languages. Also analysed open GIS standards. More detail analysis made on software selected by criteria, found by previous analysis. Demonstrating plug-in creation process on open source GIS platform.

Šio darbo pagrindinis tikslas yra suprojektuoti ir sukurti internetinę matematinio programavimo ir modeliavimo sistemą. Šiam tikslui pasiekti buvo nagrinėjama matematinio programavimo samprata. Atlikta panašių matematinių programavimo sistemų bei matematinių funkcijų bibliotekų, skirtų įvairioms programavimo kalboms, analizė. Identifikuojamos ir nagrinėjamos problemos, kurios iškilo kuriant internetinę matematinio programavimo ir modeliavimo sistemą. Taip pat šiai sistemai parašytos testinės programos su C++, Java, Fortran programavimo kalbomis bei Netlib Repository LAPACK ir QT bibliotekomis. Sukurta sistema palyginta su Mathematica ir Scilab matematinio programavimo sistemomis. / The aim of this work is to design and develop web-based mathematical programming and simulation system. For this purpose were analyzed the concept of mathematical programming and performed analysis of similar mathematical programming systems and libraries of mathematical functions for various programming languages. Identified and analyzed the problems that arose in the development of an online mathematical programming and simulation system. Also, written test programs for created system in C++, Java, Fortran programming languages and Netlib Repository LAPACK, QT libraries. The developed system was compared with Mathematica and Scilab mathematical programming systems.

Šio darbo pagrindinis tikslas yra suprojektuoti ir realizuoti debesų kompiuterijos paslaugą internetinei matematinio programavimo ir modeliavimo sistemai, kuri galėtų pakeisti šios sistemos kompiliavimo ir vykdymo serverinę dalį. Šiam tikslui pasiekti buvo nagrinėjama debesies kompiuterijos samprata. Atlikta debesies platformų analizė bei jų palyginimas tarpusavyje. Taip pat apžvelgti debesų kompiuterijos paslaugų tipai. Identifikuojamos ir nagrinėjamos problemos kurios iškilo projektuojant ir realizuojant debesų kompiuterijos paslaugą. Sukurta debesų kompiuterijos paslauga galinti pakeisti šio metu internetinėje matematinio programavimo ir modeliavimo sistemoje naudojama kompiliavimo ir vykdymo modulį. / The purpose of this work is to develop Cloud Computing service for Online Mathematical Programming and Simulation system, which can replace currently used compilation and execution server. To achieve this goal there was analysed Cloud Computing concept. Also Cloud Computing service types were reviewed. Moreover Cloud platforms there were analysed and compared to each other. Identified and analysed problems, which were raised in development process. Also was developed Cloud Computing Service which can replace currently used compiling and execution module in Online Mathematical Programming and Simulation system.