Circuit designs for field-programmable gate arrays (FPGAs) are typically compiled by FPGA vendor tools, such as Xilinx's Vivado Design Suite. In recent years, partial reconfiguration (PR) has emerged as a popular technique that allows portions of an FPGA to be dynamically reconfigured after the complete device has been configured with an initial bitstream. However, the nature of current FPGA vendor tools limits further innovation and possible usage models of PR.This thesis presents Maverick, an open-source proof-of-concept computer-aided design (CAD) flow for generating reconfigurable modules (RMs) which target PR regions in FPGA designs. Maverick builds upon existing open source tools (Yosys, RapidSmith2, and Project X-Ray) to form an end-to-end compilation flow. After an initial static design and PR region are created with Xilinx's Vivado PR flow, Maverick can then compile and configure RMs onto that PR region-without the use of vendor tools. In addition, this work enables users to import and export RMs between Vivado and RapidSmith2.Furthermore, this thesis demonstrates Maverick compiling RMs on both a desktop computer and on the embedded PYNQ-Z1 board, which contains a Zynq 7020 system on chip (SoC). Maverick runs on the ARM processor embedded within the processing system (PS) of the Zynq device, generating partial bitstreams which can then be configured onto a PR region within the programmable logic (PL) fabric of the same Zynq device. This unique case, not possible with current vendor tools like Vivado, demonstrates the feasibility of a single-chip embedded system which can both compile HDL designs to bitstreams and then configure them onto its own programmable fabric.

This is an open source education management system developed on React with Agile management method. Suitable for learning various languages, it is currently developed for the purpose of learning Chinese. Teachers can post assignments and announcements, and students can do lots of practice and quiz on this.

Network security is a major topic of research because cyber attackers pose a threat to national security. Securing ground-space communications for NASA missions is important because attackers could endanger mission success and human lives. This thesis describes how an open source IPsec software package was used to create a secure and reliable channel for ground-space communications. A cost efficient, reproducible hardware testbed was also created to simulate ground-space communications. The testbed enables simulation of low-bandwidth and high latency communications links to experiment how the open source IPsec software reacts to these network constraints. Test cases were built that allowed for validation of the testbed and the open source IPsec software. The test cases also simulate using an IPsec connection from mission control ground routers to points of interest in outer space. Tested open source IPsec software did not meet all the requirements. Software changes were suggested to meet requirements.

Open Source software plays an essential part in modern software development. Ifn ot used directly by a project, it may very well be used second or even third hand through its dependencies. Any disruption in the delivery, quality or reliability of a vital dependency may send large shock waves throughout a project. This poses the question of how much trust we can put into these open source dependencies and their overall viability. In this study we investigate the effects funding through GitHub Sponsors has on NPM packages and how it affects their viability. By analyzing data queried from GitHub, NPM and NPMS we analyze how different factors affects the viability of NPM packages, with the overall aim of determining the impact funding has on a projects viability.

Open source licensing has a significant impact on the choice of business model for companies in the software industry. Permissive open source licenses provide greater flexibility in commercial use and distribution, while restrictive licenses limit revenue generation potential. Understanding the nuances of different open source licenses and complying with licensing requirements is crucial for companies seeking to navigate the complex world of open source licensing and maximize the benefits of open source software.Companies that can successfully navigate the complex world of open source licensing and business model choice can achieve competitive advantage and long-term success in the software industry.  The objective of this thesis is to examine the impact of open source licenses on businesses and delve into how they can shape the choice of utilizing open source software, as well as their implications for business operations. We conduct a literature study and complement it with an empirical study to provide a more complete understanding of the subject. The empirical study enables us to fill in the gaps in our research and compare and validate our findings. Our findings demonstrates the significant impact that licenses can have on a business, highlighting the importance of understanding them for those utilizing open source software. While our results show that the use of open source software does not necessarily limit monetization, there can be restrictions on how products can be monetized. We discovered that the multi-licensing model, which combines an open source license with a proprietary license, can be a viable option for navigating these restrictions.

Indiana University-Purdue University Indianapolis (IUPUI) / Proof of Concept - An Academic LIMS application: The aim of this project is the creation of an open-source, freeware LIMS application that can be used in an academic setting as a teaching tool for both chemistry and computer science students. The LIMS package will combine an application, developed using VB.NET, to manage the data with other open-source or freeware programs such as MySQL and WEKA. The numerous commercial chemical informatics applications available are useful tools to learn how to manage data from a user's standpoint. However, they are not readily available to the average student, nor do they offer a great understanding into how they were developed from a programmer's frame of mind. There is a great void here that, if filled can greatly help the academic community.

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Att byta databas i ett befintligt system är svårt. För att ta reda på om en annan databas fungerar tillfredsställande till systemet finns inte mycket annat att göra än att testa. Syftet med detta arbete är att utvärdera om det är möjligt för SAAB att byta databas frånSybase ASE Express Edition till H2. För utvärderingen byggs ett så kallat ''Proof-of-Concept'' med den nya databasen kopplad till systemet. Med denna uppsättning görs tester för att undersöka skillnader i funktion och prestanda. Testerna görs genom att bygga arbetslaster som båda databaserna får hantera, där tiden det tar att utföra arbetet mäts. Det görs även förbättringar på linjära sökmetoder i systemet. Resultaten visar att Sybase-databasen har bättre prestanda när det gäller att läsa från databasen.Men att H2 har mycket bättre prestanda när det gäller att skriva till databasen.Slutsatsen som dras från utvärderingen är att H2 fungerar som en ersättare till Sybase ASE ExpressEdition. Systemets linjära sökmetoder utvärderas och ersätts med teoretiskt bättre binära sökmetoder. / The changing of database to an existing system is not easy. To find out if the new database willwork to a satisfying degree there is no other way than to test it. The purpose of this work is toevaluate if it is possible for SAAB to switch database from Sybase ASE Express Edition to H2. To evaluate the database, a Proof-of-Concept is created and connected to the systemWith this setup, tests are performed to investigate differences in functions and performance.The tests are preformed by building workloads that both databases will work with, where the time it takesto work with them is measured. Will also create an improvement on search methods that were linear. The results show that Sybase have a better performance when it comes to reading from the database while H2 have a better performance when it comes to writing to the database.  A conclusion is that H2 will work as a substitute to Sybase ASE Express Edition. The linear search methods as previouslyimplemented where replaced with binary search methods and the results show that the binary searchmethod were faster.

Open Source Hardware (OSHW) is a concept where hardware designs are shared for everyone to use, modify and build upon. This have become a widespread phenomenon in the microcontroller industry and created an ecosystem where users and companies produce various “derivatives” or alternative designs based on existing OSHW. This research explores this phenomenon of derivative development between users and producers and how this affects innovation, by exploring three case studies of user developed derivatives and interviews with producers and various people with OSHW background. This thesis found that this ecosystem to be dependent on Open Source and leverages the interest of users motivation to innovate and producer support. Furthermore, eight different factor were discovered that derivative development affecting innovation. (1) Openness & Transparency allows the user to innovate without fearing consequences of IP infringement and establishing trust. The transparency also increases the chances for the users to become innovators, as it facilitates the understanding of products, through the documentations and information sharing. (2) Support from producers facilitates users’ ability to design and innovate and was found crucial for the emergence of derivative designs. (3) Amplified Motivation through personal interest has a high impact in the innovation of open microcontrollers. (4) Market diffusion through low-cost ways of sharing and diffusing designs. (5) Market expansion increasing the number of derivative development can affect the resources used by producers in their development process. (6) Product improvements are affected, because of the vast feedback provided by the community, which can lead to through the discovery of usage in fields, product functionality. This increases the quality of the product and allows OSHW producers to stay competitive. (7) Collaboration can affect innovation by the collaborations with derivative projects and businesses. (8) Brand and Marketing is affecting by the number of users that use producers’ products for user-innovators development of derivative designs.