scholarly journals Correction: Xiang, Y.M.; Pan, W.F.; Jiang, H.B.; Zhu, Y.F.; Li, H. Measuring Software Modularity Based on Software Networks. Entropy 2019, 21, 344

Entropy ◽  
2020 ◽  
Vol 22 (8) ◽  
pp. 878
Author(s):  
Yiming Xiang ◽  
Weifeng Pan ◽  
Haibo Jiang ◽  
Yunfang Zhu ◽  
Hao Li
Keyword(s):  
Software Modularity

The authors wish to make the following corrections to the paper [...]

spaceAPPS – A modular approach for on-board software

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Juergen Herpel ◽  
Friedrich Schoen ◽  
Harald Selegrad
Keyword(s):  
Success Factors ◽  
Third Party ◽  
Ground Testing ◽  
Modular Concept ◽  
Failure Propagation ◽  
Software Modularity ◽  
Cost Efficient ◽  
Space Separation ◽  
Target Platform ◽  
Efficient Software

Abstract Software modularity and partial qualification capabilities are key enablers to produce cost efficient software in highly regulated domains. The modular concept (called spaceAPPS) described in this paper has been developed in the frame of the OPS-SAT project aiming at missions where flexibility is one of the success factors. spaceAPPS implements a novel software architecture for satellites inspired by the Apps concept of modern smartphones. In the European space domain the operation of a satellite is based on a set of 18 services. Accordingly, in spaceApps these services are mapped to individual Apps. This is not a one-to-one mapping which means that one App implements one or more services. During OPS-SAT ground testing it was demonstrated that functionality could be easily added through a new App or updated through replacing an existing App. Also during OPS-SAT ground testing it could be shown that a failing UserApp did not impact the basic apps to operate the satellite. Thus, it is possible to run applications of different criticality on the same platform. With operating systems supporting time and space separation the risk of failure propagation can be further reduced. The implementation of a partial validation approach, i. e. testing of third-party Apps in a representative environment and not running the validation on the target platform is feasible but was not demonstrated.

Exploring the Relationship between Software Modularity and Technical Debt

2018 ◽  
Author(s):  
Peggy Skiada ◽  
Apostolos Ampatzoglou ◽  
Elvira-Maria Arvanitou ◽  
Alexander Chatzigeorgiou ◽  
Ioannis Stamelos
Keyword(s):  
Technical Debt ◽  
Software Modularity ◽  
The Relationship

KOREAN ACTIVITY ON SOFTWARE MODULARITY FOR SERVICE ROBOTS

2016 ◽  
pp. 672-679
Author(s):  
MI-SOOK KIM ◽  
HONGSEOK KIM ◽  
HONG SEONG PARK
Keyword(s):  
Service Robots ◽  
Software Modularity

scholarly journals A Survey on Different Real Time Operating Systems

2021 ◽  
Vol 10 (5) ◽  
pp. 221-223
Author(s):  
Santhosh M S ◽  
Nagaraja G S
Keyword(s):  
Embedded System ◽  
Real Time ◽  
Operating Systems ◽  
System Development ◽  
Efficient Utilization ◽  
Task Execution ◽  
Real Time Operating System ◽  
Development Costs ◽  
Software Modularity ◽  
Embedded Applications

To minimise development costs and enhance dependability, modern embedded system development is increasingly emphasising on software modularity and reuse. Microcontrollers are extensively employed in embedded applications that have a very specific and specialised job to complete. The embedded applications are always resource constraint which requires efficient utilization of available resources. A Real Time Operating System (RTOS) is frequently used in this context to plan task execution as well as enable intertask communication and synchronisation. This paper provides the survey of different RTOS available in market and their applications. Several open source RTOS such as Free RTOS, VxWorks, SmallRTOS and TinyOS are compared with respect to the scheduling algorithms used.

scholarly journals Measuring Software Modularity Based on Software Networks

Entropy ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 344 ◽  
Author(s):  
Yiming Xiang ◽  
Weifeng Pan ◽  
Haibo Jiang ◽  
Yunfang Zhu ◽  
Hao Li
Keyword(s):  
Complex Systems ◽  
Complex Network ◽  
Software Metrics ◽  
Empirical Evaluation ◽  
Network Models ◽  
Software Systems ◽  
Complex Network Theory ◽  
Software Metric ◽  
Software Network ◽  
Software Modularity

Modularity has been regarded as one of the most important properties of a successful software design. It has significant impact on many external quality attributes such as reusability, maintainability, and understandability. Thus, proposing metrics to measure the software modularity can be very useful. Although several metrics have been proposed to characterize some modularity-related attributes, they fail to characterize software modularity as a whole. A complex network uses network models to abstract the internal structure of complex systems, providing a general way to analyze complex systems as a whole. In this paper, we introduce the complex network theory into software engineering and employ modularity, a metric widely used in the field of community detection in complex network research, to measure software modularity as a whole. First, a specific piece of software is represented by a software network, feature coupling network (FCN), where methods and attributes are nodes, couplings between methods and attributes are edges, and the weight on the edges denotes the coupling strength. Then, modularity is applied to the FCN to measure software modularity. We apply the Weyuker’s criteria which is widely used in the field of software metrics, to validate the modularity as a software metric theoretically, and also perform an empirical evaluation using open-source Java software systems to show its effectiveness as a software metric to measure software modularity.

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