Towards a New Combination and Communication Approach of Software Components

Author(s):  
Fadoua Rehioui ◽  
Abdellatif Hair

The interest behind the use of component based software engineering is to divide an information system in subsystems with less complexity, the reduction of time, faster development, and enhancing the productivity. The software systems are developed by assembling components which are software units that offer a set of services exposed as interfaces. The indispensable role of component-based development is the component model that defines how components can be built and how they can be assembled. A component is intended to provide specific services as the management of the combination and the communication between the system units. The Manager Component is an important and complementary paradigm for the development of software systems. The functionalities that it encapsulates must be related and consistent. The model presented in this paper proposes a component called Manager Software component based on the viewpoint (vision of each system user and actor) by the assembly of Base Component and system components.

Author(s):  
Fadoua Rehioui ◽  
Abdellatif Hair

The interest behind the use of component based software engineering is to divide an information system in subsystems with less complexity, the reduction of time, faster development, and enhancing the productivity. The software systems are developed by assembling components which are software units that offer a set of services exposed as interfaces. The indispensable role of component-based development is the component model that defines how components can be built and how they can be assembled. A component is intended to provide specific services as the management of the combination and the communication between the system units. The Manager Component is an important and complementary paradigm for the development of software systems. The functionalities that it encapsulates must be related and consistent. The model presented in this paper proposes a component called Manager Software component based on the viewpoint (vision of each system user and actor) by the assembly of Base Component and system components.


Author(s):  
Tarek Zernadji ◽  
Raida Elmansouri ◽  
Allaoua Chaoui

Current research on software reuse in Component Based Software Engineering (CBSE) covers a variety of fields, including component design, component specification, component composition, component-based framework. CBSE is quickly becoming a mainstream approach to software development and most researchers are hoping that it will be solutions to all the problems that led to software crisis. The software engineering techniques specific to this discipline, in phases such as modeling, verification or validation of component based software systems still insufficient and need more research efforts. ECATNets (Extended Concurrent Algebraic Term Nets) are frameworks for specification, modeling and validation of concurrent and distributed systems. They are characterized by their semantics defined in terms of rewriting logic. The objective of this article is to propose a formal specification of software components by using ECATNets formalism. The expected benefits of this work are: Offer a formal notation for describing the different features of concurrent and distributed software components; Defining a formal unambiguous semantic to describe behavior of the composed system.


Author(s):  
Adnan Bader ◽  
Sita Ramakrishnan

Component-based software engineering (CBSE) has rapidly gained currency over recent years. Software developed as components and as assemblies of components has realised the reuse slogan originally associated with object-oriented design. In this chapter we define what software components are along with their different characteristics and classifications. We also cover the widely debated definitions of software components to emphasise the fact that components possess different properties that can mean different things to different people. We discuss the impact of using components on the software development lifecycle and review a number of different approaches developed to procure and integrate components in software systems. Finally, the risks associated with using software components are discussed in detail with along with a trust model. Trends in CBSE research are discussed towards the end to explore some potential areas of future research.


Author(s):  
TONG GAO ◽  
HUI MA ◽  
I-LING YEN ◽  
LATIFUR KHAN ◽  
FAROKH BASTANI

The rapid growth in the demand for embedded systems and the increased complexity of embedded software pose an urgent need for advanced embedded software development techniques. Software technology is shifting toward semi-automated code generation and integration of systems from components. Component-based development (CBD) techniques can significantly reduce the time and cost for developing software systems. Furthermore, effective component retrieval is a fundamental issue in CBD. In this paper, we address the issues in designing software repositories for embedded software components. We develop an On-line Repository for Embedded Software (ORES) to facilitate component management and retrieval. ORES uses an ontology-based approach to facilitate repository browsing and effective search. To allow easy browsing of ORES, we analyze the typical ontology relations for software components and develop a Merging and Echoing technique to convert the ontology into a hierarchy suitable for browsing, but without the loss of any critical semantic information contained in the ontology. We also develop an algorithm for grouping search results based on the ontology. Thus, we can display search result groups to avoid having to display a large number of search results or having to prune the results and risk reducing the recall factor. Another important aspect in embedded software is the set of nonfunctional requirements and properties. In ORES, we develop an XML-based specification method to capture nonfunctional properties as well as functional characteristics of components and enable retrieval of relevant components based on these specifications.


2012 ◽  
Vol 198-199 ◽  
pp. 485-489
Author(s):  
Chuan Sheng Zhou

Since the component technologies and Component-Based Development (CBD) or Component-Based Software Engineering (CBSE) started at 90 of 20th century [1], today almost 70 percent of software development with components. But from the industry practice and component based application developers’ point of view, the big problem still exists which is how to compose software components together effectively and efficiently. Here, by research on the component and taskflow and XML technologies, to illustrate a taskflow based design of component composition technology with XML based tasks for components integration and to improve the efficiency of CBSE.


Author(s):  
Denis Voloshinov ◽  
K. Solomonov ◽  
Lyudmila Mokretsova ◽  
Lyudmila Tishchuk

The application of constructive geometric modeling to pedagogical models of teaching graphic disciplines today is a promising direction for using computer technology in the educational process of educational institutions. The essence of the method of constructive geometric modeling is to represent any operation performed on geometric objects in the form of a transformation, as a result of which some constructive connection is established, and the transformation itself can be considered as a result of the action of an abstract cybernetic device. Constructive geometric modeling is a popular information tool for information processing in various applied areas, however, this tool cannot be appreciated without the presence of appropriate software systems and developed design techniques. Traditionally, constructive geometric modeling is used in the design of mechanical engineering, energy, aircraft and shipbuilding facilities, in architectural and design engineering. The need to study descriptive geometry at the university in recent years has something in common with the issues of mastering graphic packages of computer programs in the framework of the new discipline "Engineering and Computer Graphics". The well-known KOMPAS software product is considered the simplest and most attractive for training. It should be noted the important role of graphic packages in the teaching of geometric disciplines that require a figurative perception of the material by students. Against the background of a reduction in classroom hours, computer graphics packages are practically the only productive teaching methodology, successfully replacing traditional tools - chalk and blackboard.


DYNA ◽  
2018 ◽  
Vol 85 (207) ◽  
pp. 74-83 ◽  
Author(s):  
Daniel Correa ◽  
Raúl Mazo ◽  
Gloria Lucia Giraldo Goméz

Software product lines facilitate the industrialization of software development. The main goal is to create a set of reusable software components for the rapid production of a software systems family. Many authors have proposed different approaches to design and implement the components of a product line. However, the construction and integration of these components continue to be a complex and time-consuming process. This paper introduces Fragment-oriented programming (FragOP), a framework to design and implement software product line domain components, and derive software products. FragOP is based on: (i) domain components, (ii) fragmentations points and (iii)fragments. FragOP was implemented in the VariaMos tool and using it we created a clothing stores software product line. We derivedfive different products, integrating automatically thousands of lines of code. On average, only three lines of code were manually modified;which provided preliminary evidence that using FragOP reduces manual intervention when integrating domain components.


2020 ◽  
pp. 53-108
Author(s):  
Christian Schlegel ◽  
Alex Lotz ◽  
Matthias Lutz ◽  
Dennis Stampfer

AbstractSuccessful engineering principles for building software systems rely on the separation of concerns for mastering complexity. However, just working on different concerns of a system in a collaborative way is not good enough for economically feasible tailored solutions. A successful approach for this is the composition of complex systems out of commodity building blocks. These come as is and can be represented as blocks with ports via data sheets. Data sheets are models and allow a proper selection and configuration as well as the prediction of the behavior of a building block in a specific context. This chapter explains how model-driven approaches can be used to support separation of roles and composition for robotics software systems. The models, open-source tools, open-source robotics software components and fully deployable robotics software systems shape a robotics software ecosystem.


2021 ◽  
Vol 8 (3) ◽  
Author(s):  
Mosteiro M ◽  
◽  
Cejuela M ◽  
Pernas S ◽  
◽  
...  

Check-point inhibitors have erupted as a treatment option for numerous kinds of neoplasms. Although there have been some achievements, the evidence supporting their use in breast cancer is scarce. Combinations with chemotherapy seem to provide better outcomes, and triple negative is the subtype most likely to benefit from them. New combination strategies are undergoing research to improve these results. Other approaches to determining biomarkers that identify which populations clearly benefit from these therapies are needed. Here, we review the clinical data of the role of immune check-point inhibitors in early and advanced breast cancer and present emerging strategies.


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