A Comparative study of Traditional and Component based software engineering approach using models

No Abstrac

Enhancement in V- model for Component Based Development

In Component based software development, one of the commonly used methodology is V-shaped development model. The focus of this study was to enlighten the major drawbacks of an existing immature change controlling and up grading mechanism in V-model for Component based software development projects.  In previous model approach, if any change request occurs from customer or by any means while developing the system, the process has to be re-started from scratch. Secondly, the up gradation mechanism for developed and implemented system after deployment is improper. While having these lacks, extra cost, time and other resource are not saved. In this study, a new agent-based approach is introduced that implements a continuous monitoring and collaboration activities with all phases of development during the whole project life cycle. This strategy covers the gaps of this model efficiently regarding software quality assurance, time saving and it provides proper support to meet new change requirements during and after the software development. This addition not only extends the acceptability and maturity of this model to accomplish complex projects in time but also makes the deliverable more accurate. Keywords: Component based development, Up-gradation mechanis

Component trustworthiness in an enterprise software platform ecosystem

Enterprise software packages are increasingly designed as ex-tendable software platforms. These platforms are characterised by modular architecture that allows third parties to innovate and create value through the development of complementary applications. The development process of complementary applications from scratch is resource-intensive. One way of optimising the development process is by using the component-based software engineering (CBSE) approach that focuses on software reuse and suggests building applications with reusable components. There is a considerable amount of literature on CBSE; however, there has been little discussion on how component-based software engineering can strengthen third-party application development in the context of an enterprise software platform ecosystem. Specifically, it is unclear how the challenge of component trustworthiness can be addressed in this context. To explore this, we conducted a design science research(DSR) study to answer the following question: What are design principles pertaining to component trustworthiness for implementing a component repository that facilitates component reuse in an enterprise software platform ecosystem? In our study, we have explored the potential for component reuse in the ecosystem of the global health software platform DHIS2 by designing and developing a prototype component repository. Duringthe design and development process, two design principles were identi-fied: Principle of component trustworthiness and Principle of balanced certification. These principles are to guide researchers and practitioners on how a component repository can be implemented in the context of an enterprise software platform ecosystem

CBSE: an implementation case study

Over the last couple of years, the shift towards component based software engineering (CBSE) methods has become a cost effective way to get an application to implementation stage much earKer. Adoption of Component Based Development methods acknowledges the use of third party components wherever possible to reduce the cost of software development, shorten the development phase and provide a richer set of processing options for the end user. The use of these tools is particularly relevant in Web based applications, where commercial off the shelf (COTS) products are so prevalent. However, there are a number of risks associated with the use of component based development methods. This thesis investigates these risks within the context of a software engineering project and attempts to provide a means to minimise and or at least manage the risk potential when using component based development method

Virtual Node - To Achieve Temporal Isolation and Predictable Integration of Real-Time Components

We present an approach of two-level deployment process for component models used in distributed real-time embedded systems to achieve predictable integration of real-time components. Our main emphasis is on the new concept of virtual node with the use of a hierarchical scheduling technique. Virtual nodes are used as means to achieve predictable integration of software components with real-time requirements. The hierarchical scheduling framework is used to achieve temporal isolation between components (or sets of components). Our approach permits detailed analysis, e.g., with respect to timing, of virtual nodes and this analysis is also reusable with the reuse of virtual nodes. Hence virtual node preserves real-time properties across reuse and integration in different contexts

Thirty-Year Experiment in Teaching Spiritual Formation: Twelve Lessons We Learned

Spiritual formation requires intentionality, especially at the programmatic level. This article explores insights gained from a novel experiment in theological education where spiritual formation played a central role in shaping all aspects of a seminary’s structures and curriculum. Seminary of the East offered a unique glimpse into how an institution’s vision for spiritual formation can determine all dynamics including campus infrastructure, enrollment goals, faculty rank, in order to better support spiritual formation. Practitioners and administrators can gain insights from the lessons learned by a small seminary’s continually improving efforts at modeling and teaching spiritual formation

Strategies for the intelligent selection of components

It is becoming common to build applications as component-intensive systems - a mixture of fresh code and existing components. For application developers the selection of components to incorporate is key to overall system quality - so they want the `best\u27. For each selection task, the application developer will de ne requirements for the ideal component and use them to select the most suitable one. While many software selection processes exist there is a lack of repeatable, usable, exible, automated processes with tool support. This investigation has focussed on nding and implementing strategies to enhance the selection of software components. The study was built around four research elements, targeting characterisation, process, strategies and evaluation. A Post-positivist methodology was used with the Spiral Development Model structuring the investigation. Data for the study is generated using a range of qualitative and quantitative methods including a survey approach, a range of case studies and quasiexperiments to focus on the speci c tuning of tools and techniques. Evaluation and review are integral to the SDM: a Goal-Question-Metric (GQM)-based approach was applied to every Spiral

Psychological Case Record

DIAGNOSTIC CLARIFICATION: PARANOID SCHIZOPHRENIA, CONTINUOUS COURSE: SCHIZOID PERSONALITY DISORDER: He was apparently normal until two years back when his mother noted that he was becoming more aloof, distant, withdrawn and preoccupied. His academic performance gradually declined. He would not socialize with his family members as well as his friends. He would not take any interest in doing any sort of work. She also noticed some peculiar mannerisms like grinding his teeth and twisting his hands. Over the last four months mother has observed him smiling and talking to self. There was no history suggestive of organicity, substance abuse, first rank symptoms, mood symptoms, obsessive-compulsive symptoms or anxiety symptoms. DIAGNOSTIC CLARIFICATION: DELUSIONAL DISORDER: PARANOID PERSONALITY DISORDER: He was apparently well until 6 years back when he got married. According to the patient there were severe problems since the beginning of their marital life; and once he found his wife along with his friend in their house at odd time. He also was suspecting that she is having relationship with other males at different times. He even compelled his wife to abort their first child believing that the child may not be his. Because of these reasons, his wife separated from him last year. Since then he became suspicious of each and every woman who is talking to males. He often reports about their behaviour to the girl’s parents or goes and advice them. Because of this those girls are angry and accuses of being simply suspicious. But according to him he is just being cautious to prevent any future difficulties. He does not believe that those girls are truly in love. He would be feeling sad occasionally about not being settled in life. There was no history suggestive of organicity, substance abuse, first rank symptoms, mood or OC symptoms. NEUROPSYCHOLOGICAL ASSESSMENT: ORGANIC AMNESTIC DISORDER: Patient met with a road traffic accident in 2004.He had closed head injury and was admitted in a hospital in Chennai. At that time he had weakness of lower limbs and difficulty of speech, which gradually improved significantly. He was on tracheotomy and later weaned off. There was no history of seizures. There is no history of substance abuse, psychotic symptoms and mood or OC symptoms. He was searching for a job to lead an independent life and wanted to know how much he could function. Therefore he came for a psychiatric evaluation and was subsequently referred for neuropsychological assessment. PERSONALITY ASSESSMENT: Patient was premorbidly described to be very sensitive and emotional, used to get angry even for trivial matters. Following marriage four months back she has difficulties in coping with day-to-day problems. She also reports feeling of loneliness and chronic feeling of emptiness. She is noted by her husband as very sensitive and describes her as a short-tempered lady. She used to quarrel with her husband very often and following that she would loss her consciousness for some brief period of time. There is no history of any seizure phenomena during this episode. I.Q. ASSESSMENT: LOW AVERAGE INTELLIGENCE: Parents gave a history of progressively deteriorating scholastic performance after the 2nd standard. They reported decrease in the marks and having decreased attention and concentration. They also reported impairment in her memory. She was able to do all the activities of daily living independently. There was no history suggestive of organicity, substance abuse, psychotic, mood symptoms or obsessive-compulsive symptoms