scholarly journals An Empirical Analysis of the Maintainability Evolution of Open Source Systems

2020 ◽  
pp. 78-86
Author(s):  
Gerta Kapllani ◽  
Ilya Khomyakov ◽  
Ruzilya Mirgalimova ◽  
Alberto Sillitti
Keyword(s):  
Open Source ◽  
Empirical Analysis ◽  
Open Source Systems

scholarly journals Open Source Completely 3-D Printable Centrifuge

2019 ◽  
Author(s):  
Salil S. Sule ◽  
Aliaksei L. Petsiuk ◽  
Joshua M. Pearce
Keyword(s):  
Open Source ◽  
Low Cost ◽  
Medical Diagnostics ◽  
Resource Constrained ◽  
Fused Filament Fabrication ◽  
Web Camera ◽  
Relative Centrifugal Force ◽  
Recycled Plastics ◽  
Human Powered ◽  
Open Source Systems

Centrifuges are commonly required devices in medical diagnostics facilities as well as scientific laboratories. Although there are commercial and open source centrifuges, costs of the former and required electricity to operate the latter, limit accessibility in resource-constrained settings. There is a need for low-cost, human-powered, verified and reliable lab-scale centrifuge. This study provides the designs for a low-cost 100% 3-D printed centrifuge, which can be fabricated on any low-cost RepRap-class fused filament fabrication (FFF) or fused particle fabrication (FPF)-based 3-D printer. In addition, validation procedures are provided using a web camera and free and open source software. This paper provides the complete open source plans including instructions for fabrication and operation for a hand-powered centrifuge. This study successfully tested and validated the instrument, which can be operated anywhere in the world with no electricity inputs obtaining a radial velocity of over 1750rpm and over 50N of relative centrifugal force. Using commercial filament the instrument costs about US$25, which is less than half of all commercially available systems; however, the costs can be dropped further using recycled plastics on open source systems for over 99% savings. The results are discussed in the contexts of resource-constrained medical and scientific facilities.

scholarly journals Own system of intelligent building in comparison with an open - source solution

2019 ◽  
Vol 12 ◽  
pp. 232-239
Author(s):  
Cezary Kryczka
Keyword(s):  
Comparative Analysis ◽  
Open Source ◽  
Automation System ◽  
Home Automation ◽  
Intelligent Building ◽  
Building System ◽  
Home Automation System ◽  
Open Source Systems ◽  
Free Open Source

This article is an attempt to answer the question whether and under what conditions it is beneficial to develop an own intelligent building system, when many free open source systems are available. The publication presents the characteristics of author's own home automation system - sHome, as well as the open-source system - Domoticz, in a configuration that is as close to the functionality of the author's system as possible. The work ends with a comparative analysis of the systems and conclusions from the analysis.

Experiences Enhancing Open Source Security in the POSSE Project

2005 ◽  
pp. 242-258
Author(s):  
Jonathan M. Smith ◽  
Michael B. Greenwald ◽  
Sotiris Ioannidis ◽  
Angelos D. Keromytis ◽  
Ben Laurie ◽  
...  
Keyword(s):  
Best Practices ◽  
Open Source ◽  
Careful Study ◽  
Significant Acceleration ◽  
Secure Software ◽  
High Assurance ◽  
Open Source Systems

This chapter reports on our experiences with POSSE, a project studying “Portable Open Source Security Elements” as part of the larger DARPA effort on Composable High Assurance Trusted Systems. We describe the organization created to manage POSSE and the significant acceleration in producing widely used secure software that has resulted. POSSE’s two main goals were, first, to increase security in open source systems and, second, to more broadly disseminate security knowledge, “best practices,” and working code that reflects these practices. POSSE achieved these goals through careful study of systems (“audit”) and starting from a well-positioned technology base (OpenBSD). We hope to illustrate the advantages of applying OpenBSD-style methodology to secure, open-source projects, and the pitfalls of melding multiple open-source efforts in a single project.

Design and Managing of Distributed Virtual Organizations

2011 ◽  
pp. 463-468
Author(s):  
Diego Liberati
Keyword(s):  
Web Services ◽  
Open Source ◽  
Virtual Organizations ◽  
Organizational Dynamics ◽  
Service Invocation ◽  
Cooperative Enterprise ◽  
Open Source Systems ◽  
Public Environment

A framework is proposed that creates, uses, communicates, and distributes information whose organizational dynamics allow it to perform a distributed cooperative enterprise in public environments even over open source systems. The approach assumes Web services as the enacting paradigm, possibly over a grid, to formalize interaction as cooperative services on various computational nodes of a network. A framework is thus proposed that defines the responsibility of e-nodes in offering services and the set of rules under which each service can be accessed by e-nodes through service invocation. By discussing a case study, the chapter will detail how specific classes of interactions can be mapped into a serviceoriented model whose implementation will be carried out in a prototypical public environment.

Design and Managing of Distributed Virtual Organizations

2011 ◽  
pp. 564-569
Author(s):  
Diego Liberati
Keyword(s):  
Web Services ◽  
Open Source ◽  
Virtual Organizations ◽  
Organizational Dynamics ◽  
Service Invocation ◽  
Cooperative Enterprise ◽  
Open Source Systems ◽  
Public Environment

A framework is proposed that creates, uses, communicates, and distributes information whose organizational dynamics allow it to perform a distributed cooperative enterprise in public environments even over open source systems. The approach assumes Web services as the enacting paradigm, possibly over a grid, to formalize interaction as cooperative services on various computational nodes of a network. A framework is thus proposed that defines the responsibility of e-nodes in offering services and the set of rules under which each service can be accessed by e-nodes through service invocation. By discussing a case study, the chapter will detail how specific classes of interactions can be mapped into a serviceoriented model whose implementation will be carried out in a prototypical public environment.

Sign in / Sign up

Export Citation Format

Share Document