Service-oriented architecture has the major advantage of enabling rapid composition of distributed applications from various services, and has become increasingly popular for many large-scale service-based systems in various application areas, including scientific collaboration, e-business, health care, military, and homeland security. Situation awareness (SAW) is the capability of the entities in a service-based system to be aware of the situation changes and automatically adapt themselves to such changes to satisfy user requirements, including security and privacy. The continuing evolutions of the entities and environment makes SAW one of the most desired features to support dynamic adaptive computing in service-based systems. In this paper, the relationship between contexts/situations and services in situation-aware service-based systems is identified and an extension of OWL-S with situation ontology, called SAW-OWL-S, incorporates SAW in service specifications is presented. An approach to generating service specifications for situation-aware service-based systems using SAW-OWL-S and the system diagram of situation-aware service-based systems using SAW-OWL-S are presented
{"title":"Incorporating situation awareness in service specifications","authors":"S. Yau, Junwei Liu","doi":"10.1109/ISORC.2006.39","DOIUrl":"https://doi.org/10.1109/ISORC.2006.39","url":null,"abstract":"Service-oriented architecture has the major advantage of enabling rapid composition of distributed applications from various services, and has become increasingly popular for many large-scale service-based systems in various application areas, including scientific collaboration, e-business, health care, military, and homeland security. Situation awareness (SAW) is the capability of the entities in a service-based system to be aware of the situation changes and automatically adapt themselves to such changes to satisfy user requirements, including security and privacy. The continuing evolutions of the entities and environment makes SAW one of the most desired features to support dynamic adaptive computing in service-based systems. In this paper, the relationship between contexts/situations and services in situation-aware service-based systems is identified and an extension of OWL-S with situation ontology, called SAW-OWL-S, incorporates SAW in service specifications is presented. An approach to generating service specifications for situation-aware service-based systems using SAW-OWL-S and the system diagram of situation-aware service-based systems using SAW-OWL-S are presented","PeriodicalId":212174,"journal":{"name":"Ninth IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'06)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128140116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Developing real-time software for large-scale distributed real-time and embedded (DRE) systems is hard due to variabilities that arise from (I) integration with various subsystems based on different programming languages and hardware, OS, middleware platforms, (2) fine tuning the system to satisfy a range of customer requirements, such as various quality-of-service (QoS) properties, and (3) changing functional and QoS properties of the system based on available system resources. This paper describes our experience applying model-driven development (MDD) tools and QoS-enabled component middleware technologies to address domain- and middleware-specific variability challenges in an inventory tracking system, which manages the storage and flow of items in warehouses. Our results show that (I) coherent integration of MDD tools and component middleware can provide a productive software process for developing DRE systems by modularizing and composing variability concerns and (2) significant challenges remain that must be overcome to apply these technologies to a broader range of DRE systems
{"title":"Modularizing variability and scalability concerns in distributed real-time and embedded systems with modeling tools and component middleware","authors":"Gan Deng, D. Schmidt, A. Gokhale, A. Nechypurenko","doi":"10.1109/ISORC.2006.57","DOIUrl":"https://doi.org/10.1109/ISORC.2006.57","url":null,"abstract":"Developing real-time software for large-scale distributed real-time and embedded (DRE) systems is hard due to variabilities that arise from (I) integration with various subsystems based on different programming languages and hardware, OS, middleware platforms, (2) fine tuning the system to satisfy a range of customer requirements, such as various quality-of-service (QoS) properties, and (3) changing functional and QoS properties of the system based on available system resources. This paper describes our experience applying model-driven development (MDD) tools and QoS-enabled component middleware technologies to address domain- and middleware-specific variability challenges in an inventory tracking system, which manages the storage and flow of items in warehouses. Our results show that (I) coherent integration of MDD tools and component middleware can provide a productive software process for developing DRE systems by modularizing and composing variability concerns and (2) significant challenges remain that must be overcome to apply these technologies to a broader range of DRE systems","PeriodicalId":212174,"journal":{"name":"Ninth IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'06)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129349629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alias analysis is a method for extracting sets of expressions which may possibly refer to the same memory locations during program execution. Although many researchers have already proposed analysis methods for the purpose of program optimization, difficulties still remain in applying such methods to practical software engineering tools in the sense of precision, extensibility and scalability. Focusing mainly on a practical use for program maintenance activities such as program debugging and understanding, we propose an alias analysis method for object-oriented programs and discuss our implementation. Using this method, we have developed a tool named JAAT. Our proposed method employs a two-phase, on-demand, and instance-based algorithm, in which intra-class analysis is done in phase 1 for whole programs and libraries, and inter-class analysis is done in phase 2 only for a user-demanded target. JAAT can analyze large programs or libraries such as JDK class library. Also, JAAT includes various features for program maintenance activities, such as GUI for displaying aliases, and an XML database for storing analysis information
{"title":"JAAT: Java alias analysis tool for program maintenance activities","authors":"Fumiaki Ohata, Katsuro Inoue","doi":"10.1109/ISORC.2006.43","DOIUrl":"https://doi.org/10.1109/ISORC.2006.43","url":null,"abstract":"Alias analysis is a method for extracting sets of expressions which may possibly refer to the same memory locations during program execution. Although many researchers have already proposed analysis methods for the purpose of program optimization, difficulties still remain in applying such methods to practical software engineering tools in the sense of precision, extensibility and scalability. Focusing mainly on a practical use for program maintenance activities such as program debugging and understanding, we propose an alias analysis method for object-oriented programs and discuss our implementation. Using this method, we have developed a tool named JAAT. Our proposed method employs a two-phase, on-demand, and instance-based algorithm, in which intra-class analysis is done in phase 1 for whole programs and libraries, and inter-class analysis is done in phase 2 only for a user-demanded target. JAAT can analyze large programs or libraries such as JDK class library. Also, JAAT includes various features for program maintenance activities, such as GUI for displaying aliases, and an XML database for storing analysis information","PeriodicalId":212174,"journal":{"name":"Ninth IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'06)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130446326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kee-Young Shin, Kwangyong Lee, Haeyong Kim, P. Mah, Seungmin Park, Chaedeok Lim, Heung-Nam Kim
In recent years, time synchronization in wireless sensor networks (WSN) is important for accurate time stamping of events and fine-tuned coordination of duty cycles to minimize power consumption. This paper presents an on-demand hierarchical mesh-based time synchronization (OHMTS) that is flexible, multi-hop based and high-precise in WSN. OHMTS adopts hierarchical and multi-hop mesh-based network architecture with supporting energy-saving problem for WSN. For the purpose of performance evaluation, we first study the error sources of OHMTS and then we evaluate the performance of OHMTS with respect to synchronization delay error using network simulator (NS-2). The simulation results show that OHMTS provides fine-tuned clock offset mechanism and can be easily applied to real WSN platform
{"title":"A flexible, high-precise time synchronization for multi-hop sensor networks","authors":"Kee-Young Shin, Kwangyong Lee, Haeyong Kim, P. Mah, Seungmin Park, Chaedeok Lim, Heung-Nam Kim","doi":"10.1109/ISORC.2006.3","DOIUrl":"https://doi.org/10.1109/ISORC.2006.3","url":null,"abstract":"In recent years, time synchronization in wireless sensor networks (WSN) is important for accurate time stamping of events and fine-tuned coordination of duty cycles to minimize power consumption. This paper presents an on-demand hierarchical mesh-based time synchronization (OHMTS) that is flexible, multi-hop based and high-precise in WSN. OHMTS adopts hierarchical and multi-hop mesh-based network architecture with supporting energy-saving problem for WSN. For the purpose of performance evaluation, we first study the error sources of OHMTS and then we evaluate the performance of OHMTS with respect to synchronization delay error using network simulator (NS-2). The simulation results show that OHMTS provides fine-tuned clock offset mechanism and can be easily applied to real WSN platform","PeriodicalId":212174,"journal":{"name":"Ninth IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'06)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124292862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Integrated architectures promise substantial technical and economic benefits in the development of distributed embedded real-time systems. In the context of diagnosis new diagnostic strategies can be applied by taking the physical and functional structure of an integrated system into account. In this paper we present a diagnostic framework that is designed to tackle prevalent diagnostic problems industry is currently facing, such as the trouble-not-identified phenomenon in electronic systems. So-called out-of-norm assertions (ONAs) are employed that combine diagnostic information to correlate experienced failures in order to decide on the type fault (e.g., transient vs. permanent, internal vs. external) affecting the system. Based on a prototype implementation of the integrated time-triggered DECOS architecture we show the feasibility of this diagnostic strategy
{"title":"A diagnostic framework for integrated time-triggered architectures","authors":"P. Peti, R. Obermaisser","doi":"10.1109/ISORC.2006.78","DOIUrl":"https://doi.org/10.1109/ISORC.2006.78","url":null,"abstract":"Integrated architectures promise substantial technical and economic benefits in the development of distributed embedded real-time systems. In the context of diagnosis new diagnostic strategies can be applied by taking the physical and functional structure of an integrated system into account. In this paper we present a diagnostic framework that is designed to tackle prevalent diagnostic problems industry is currently facing, such as the trouble-not-identified phenomenon in electronic systems. So-called out-of-norm assertions (ONAs) are employed that combine diagnostic information to correlate experienced failures in order to decide on the type fault (e.g., transient vs. permanent, internal vs. external) affecting the system. Based on a prototype implementation of the integrated time-triggered DECOS architecture we show the feasibility of this diagnostic strategy","PeriodicalId":212174,"journal":{"name":"Ninth IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'06)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115067009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
U. Brinkschulte, B. Thuraisingham, M. D. Miguel, P. Puschner, R. Paul, S. Yau
{"title":"Towards Developing a Secure Dependable System: Development, Issues, and Challenges","authors":"U. Brinkschulte, B. Thuraisingham, M. D. Miguel, P. Puschner, R. Paul, S. Yau","doi":"10.1109/ISORC.2006.74","DOIUrl":"https://doi.org/10.1109/ISORC.2006.74","url":null,"abstract":"","PeriodicalId":212174,"journal":{"name":"Ninth IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC'06)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121303685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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