6 research outputs found
Interactive assessment of simulated service qualities by business stakeholders: principles and research issues
We present the principles of an approach supporting the stakeholder involvement in a software process for service-oriented systems in a form of assessing the perceived quality of the software under development in its usage context. This method relies on interactive simulation of service performance and reliability; simulation models are parameterized by the factors influencing service execution; business stakeholders experience simulated service qualities in simulated usage contexts and assess this experience; the obtained assessments can be later used throughout the system lifecycle as a means of control for the quality of the software under development.Наведено принципи підходу, що підтримує участь зацікавлених осіб у процесі розробки сервіс-орієнтованих програмних систем у вигляді оцінювання сприйманої якості розроблюваної системи в контексті її використання. Цей підхід спирається на інтерактивне імітаційне моделювання продуктивності та надійності сервісів; параметрами імітаційних моделей є фактори, що впливають на виконання сервісів; зацікавлені особи висловлюють своє відношення до значень продуктивності та надійності, отриманих при взаємодії з імітаційними моделями якості сервісів у рамках виконання імітаційних моделей їх контекстів використання, надані оцінки можуть бути використані на різних етапах життєвого циклу програмного забезпечення як засоби контролю його якості
Biologically Inspired Self-Healing Software System Architecture
Self-healing capabilities have begun to emerge as an interesting and potentially valuable
property of software systems. Self-healing characteristic enables software systems to
continuously and dynamically monitor, diagnose, and adapt itself after a failures has
occur in their components. Adding such characteristic into existing software systems is
immensely useful and valuable for allowing them to recover from failures. However,
developing such self-healing software systems is a significant challenge.
The nature introduces to us unforeseen concepts in terms of presenting biological
systems that have the ability to handle its abnormal conditions. Based on this observation,
this thesis presents self healing architecture for software system based on one of the
biological processes that have the ability to heal by itself (the wound-healing process).
The self-healing architecture provides software systems the ability to handle anomalous
conditions that appear among its components. The presented architecture is divided into
to layers, functional and healing layer. In the functional layer, the components of the
system provide its services without any disruptions. The component is considered as
faulty component if it fails to provide its services. The healing layer aims to heal the
faulty component and return it to the running system without the awareness of the user.
The presented self-healing software system is formally described to prove its
functionality. Set-theoretic and Finite State Machine (FSM) is introduced. A prototype
for the presented architecture has been implemented using Java language. Java objects
are considered as the system components. The modules of the healing layer in the selfhealing
architecture have been implemented into Java classes. An object from the module
class will be created to perform its task for the healing process. The thesis concludes with
recommendations for future works in this area and enhancement of the presented
architecture
Biologically Inspired Self-Healing Software System Architecture
Self-healing capabilities have begun to emerge as an interesting and potentially valuable
property of software systems. Self-healing characteristic enables software systems to
continuously and dynamically monitor, diagnose, and adapt itself after a failures has
occur in their components. Adding such characteristic into existing software systems is
immensely useful and valuable for allowing them to recover from failures. However,
developing such self-healing software systems is a significant challenge.
The nature introduces to us unforeseen concepts in terms of presenting biological
systems that have the ability to handle its abnormal conditions. Based on this observation,
this thesis presents self healing architecture for software system based on one of the
biological processes that have the ability to heal by itself (the wound-healing process).
The self-healing architecture provides software systems the ability to handle anomalous
conditions that appear among its components. The presented architecture is divided into
to layers, functional and healing layer. In the functional layer, the components of the
system provide its services without any disruptions. The component is considered as
faulty component if it fails to provide its services. The healing layer aims to heal the
faulty component and return it to the running system without the awareness of the user.
The presented self-healing software system is formally described to prove its
functionality. Set-theoretic and Finite State Machine (FSM) is introduced. A prototype
for the presented architecture has been implemented using Java language. Java objects
are considered as the system components. The modules of the healing layer in the selfhealing
architecture have been implemented into Java classes. An object from the module
class will be created to perform its task for the healing process. The thesis concludes with
recommendations for future works in this area and enhancement of the presented
architecture
Biologically Inspired Self-Healing Software System Architecture
Self-healing capabilities have begun to emerge as an interesting and potentially valuable
property of software systems. Self-healing characteristic enables software systems to
continuously and dynamically monitor, diagnose, and adapt itself after a failures has
occur in their components. Adding such characteristic into existing software systems is
immensely useful and valuable for allowing them to recover from failures. However,
developing such self-healing software systems is a significant challenge.
The nature introduces to us unforeseen concepts in terms of presenting biological
systems that have the ability to handle its abnormal conditions. Based on this observation,
this thesis presents self-healing architecture for software system based on one of the
biological processes that have the ability to heal by itself (the wound-healing process).
The self-healing architecture provides software systems the ability to handle anomalous
conditions that appear among its components. The presented architecture is divided into
to layers, functional and healing layer. In the functional layer, the components of the
system provide its services without any disruptions. The component is considered as
faulty component if it fails to provide its services. The healing layer aims to heal the
faulty component and return it to the running system without the awareness of the user.
The presented self-healing software system is formally described to prove its
functionality. Set-theoretic and Finite State Machine (FSM) is introduced. A prototype
for the presented architecture has been implemented using Java language. Java objects
are considered as the system components. The modules of the healing layer in the selfhealing
architecture have been implemented into Java classes. An object from the module
class will be created to perform its task for the healing process. The thesis concludes with
recommendations for future works in this area and enhancement of the presented
architecture.