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Delta abstractions: a technique for managing database states in runtime debugging of active database rules

S.D. Urban, T. Ben Abdellatif, S.W. Dietrich, A. Sundermier
2003 IEEE Transactions on Knowledge and Data Engineering  
Delta abstractions provide an additional layer to the database programmer for organizing object deltas according to different language components that induce database changes, such as methods and active  ...  An active rule analysis and debugging tool has been implemented to demonstrate the use of object deltas and delta abstractions for dynamic analysis of active rules at runtime.  ...  Delta abstractions were specifically developed as an architectural component of an active database runtime environment.  ... 
doi:10.1109/tkde.2003.1198393 fatcat:22f2h7gshfbqhdmdnjyrdwd5ru

Monitoring data dependencies in concurrent process execution through delta-enabled grid services

Susan D. Urban, Yang Xiao, Luther Blake, Suzanne W. Dietrich
2009 International Journal of Web and Grid Services  
The research has been conducted in the context of the DeltaGrid project, focusing on the development of a semantically-robust execution environment for the composition of Grid Services.  ...  Delta-Enabled Grid Services (DEGS) are a foundational aspect of the DeltaGrid environment, extending Grid Services with the capability of recording incremental data changes, known as deltas.  ...  in an object-oriented database (Sundermier et al., 1997) .  ... 
doi:10.1504/ijwgs.2009.023870 fatcat:uwm5ksrnozebzpohzr3j2ygzey


H. A. Umar, M. F. Abdul Khanan, A. Ahmad, M. J. Sani, M. Z. Abd Rahman, A. Abdul Rahman
2019 The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
The aim of this paper is to develop a database on how oil spills affects water quality which is one of the most crucial resources in the Niger Delta.  ...  The study uses existing oil spills data to show the areas and extent of oil pollution in the Niger Delta.  ...  ACKNOWLEDGEMENTS The authors would like to express their appreciation to Petroleum Technology Development Fund (PTDF) for sponsoring this Reseach and National Oil Spill Detection and Response Agency (NOSDRA  ... 
doi:10.5194/isprs-archives-xlii-4-w16-645-2019 fatcat:icxwsncqd5gjtdfsiv5unc4juq

The evolution of configuration management and version control

Vincenzo Ambriola, Lars Bendix, Paolo Ciancarini
1990 Software Engineering Journal  
In this paper, we show how the problem of automating these activities has been solved in a number of software development environments.  ...  systems based on a project database.  ...  First of all, configuration management and version control must be performed inside an environment in order to be integrated with all the other development activities.  ... 
doi:10.1049/sej.1990.0033 fatcat:2h25tflcnjf6dfda4ncoh3zkci

Monitoring the development process with Eclipse

A. Sillitti, A. Janes, G. Succi, T. Vernazza
2004 International Conference on Information Technology: Coding and Computing, 2004. Proceedings. ITCC 2004.  
This paper describes an extension of the Eclipse IDE environment to allow developers to collect data regarding the development process without any effort.  ...  Monitoring the development process is a complex task due to the amount of resources required (i.e. time and money), moreover the correctness of collected data is not guaranteed if the required tasks are  ...  The authors would like to thank the Italian Government for co-founding part of this research through the Founds for Basic Research (MAPS project, an Italian acronym for Agile Methodologies for Software  ... 
doi:10.1109/itcc.2004.1286609 dblp:conf/itcc/SillittiJSV04 fatcat:f2y2t5km6zb3lk4bcx6mnhwlyu

Supporting Data Consistency in Concurrent Process Execution with Assurance Points and Invariants [chapter]

Susan D. Urban, Andrew Courter, Le Gao, Mary Shuman
2011 Lecture Notes in Computer Science  
This research has developed the concept of invariants for monitoring data in a service-oriented environment that allows concurrent data accessibility with relaxed isolation.  ...  The strength of the invariant technique is that it provides a way to monitor data consistency in an environment where the coordinated locking of data items across multiple service executions is not possible  ...  Opinions, findings, conclusions or recommendations expressed in this paper are those of the author(s) and do not necessarily reflect the views of NSF.  ... 
doi:10.1007/978-3-642-24908-2_18 fatcat:w7pt4bezgjdxtohl3dyymfyghm

Spatiotemporal Evolution of Entrepreneurial Activities and Its Driving Factors in the Yangtze River Delta, China

Haipeng Zhang, Wei Chen, Zhigao Liu
2022 Land  
The ontology of entrepreneurial activities—startups—was chosen as the object of this study, and the developmental characteristics of entrepreneurial activities in the region since 2001 were explored in  ...  The number of startups increased during this period, from 241,700 in 2001 to 1,959,600 in 2018. (2) The density of entrepreneurial activities in the Yangtze River Delta has increased since 2001.  ...  The former reflects the overall developmental environment of a given place: the higher the level of economic development, the better the overall developmental environment of a region and the better the  ... 
doi:10.3390/land11020216 fatcat:qyusaofz4feh3jbzndotoodt64

A Process History Capture System for Analysis of Data Dependencies in Concurrent Process Execution [chapter]

Yang Xiao, Susan D. Urban, Suzanne W. Dietrich
2006 Lecture Notes in Computer Science  
A DEGS is a Grid Service with an enhanced interface to access incremental data changes, known as deltas, associated with service execution in the context of global processes.  ...  The PHCS captures process execution context and deltas from distributed DEGSs and constructs a global schedule for multiple executing processes, integrating local schedules that are extracted from deltas  ...  The design of DEGS is based on our past research with capturing object deltas [19] in an object-oriented database and defining delta abstractions for the incremental, runtime debugging of active rule  ... 
doi:10.1007/11780397_13 fatcat:4ablbdfn5fa7hdrrc3kfykhdma

Modelling Adaptable Distributed Object Oriented Systems Using the HATS Approach: A Fredhopper Case Study [chapter]

Peter Y. H. Wong, Nikolay Diakov, Ina Schaefer
2012 Lecture Notes in Computer Science  
In this paper, we evaluate the HATS approach for modelling an industrial scale case study provided by the eCommerce company Fredhopper. In this case study we consider Fredhopper Access Server (FAS).  ...  The HATS project aims at developing a model-centric engineering methodology for the design, implementation and verification of distributed, concurrent and highly configurable systems.  ...  ; A v = f.get; in an active object to model invoking method m() of object o asynchronously, yielding the thread control of its object group and blocking its own execution until the method call returns.  ... 
doi:10.1007/978-3-642-31762-0_5 fatcat:gnfs7ctumzdxdb6zrhsewwmrea

GridPML: a process modeling language and history capture system for grid service composition

Hua Ma, S.D. Urban, Yang Xiao, S.W. Dietrich
2005 IEEE International Conference on e-Business Engineering (ICEBE'05)  
environment.  ...  The GridPML defines an approach to Grid Service lifecycle management that creates service instances as needed at run time.  ...  The IRules project has developed a middle-tier, rule processing environment for the use of declarative, active rules in the integration of distributed components.  ... 
doi:10.1109/icebe.2005.69 dblp:conf/icebe/MaUXD05 fatcat:urm2br55wfckvn3jrjlt7cevz4

Decentralized data dependency analysis for concurrent process execution

Susan D. Urban, Ziao Liu, Le Gao, Edward E. Whitaker
2009 2009 13th Enterprise Distributed Object Computing Conference Workshops  
This paper presents our results with the investigation of decentralized data dependency analysis among concurrently executing processes in a service-oriented environment.  ...  PEXAs are also associated with specific distributed sites for the purpose of capturing data changes that occur at those sites in the context of service executions using Delta-Enabled Grid Services.  ...  Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.  ... 
doi:10.1109/edocw.2009.5332013 dblp:conf/edoc/UrbanLGW09 fatcat:qvp6mnckdnbvralzbicjwhls74

GIS and Remote Sensing Applications in the Assessment of Change within a Coastal Environment in the Niger Delta Region of Nigeria

Yaw Twumasi, Edmund Merem
2006 International Journal of Environmental Research and Public Health  
of development in the Niger Delta region of Southern Nigeria.  ...  As the region embarks upon an unprecedented phase of economic expansion in the 21 st century, it faces several environmental challenges fuelled partly by the pressures caused by human activities such as  ...  Acknowledgement: This paper was supported in part by Alabama A&M University Center for Hydrology, Soil Climatology, and Remote Sensing (HSCaRS) through the National Aeronautics and Space Administration  ... 
doi:10.3390/ijerph2006030011 pmid:16823081 pmcid:PMC3785684 fatcat:rgmrgkfasrg7jdcylrsljpjehu

The ABS tool suite: modelling, executing and analysing distributed adaptable object-oriented systems

Peter Y. H. Wong, Elvira Albert, Radu Muschevici, José Proença, Jan Schäfer, Rudolf Schlatte
2012 International Journal on Software Tools for Technology Transfer (STTT)  
We report on the experience of using the ABS language and the ABS tool suite in an industrial case study.  ...  The ABS language has a hybrid functional and object-oriented core, and comes with extensions that support the development of systems that are adaptable to diversified requirements, yet capable to maintain  ...  Mock objects and test-first development are used to solve these issues, but the delta mechanism of ABS can additionally be used to make an object testable.  ... 
doi:10.1007/s10009-012-0250-1 fatcat:4cax5b6gpfb5xlx6ugtjvsivda

HATS Abstract Behavioral Specification: The Architectural View [chapter]

Reiner Hähnle, Michiel Helvensteijn, Einar Broch Johnsen, Michael Lienhardt, Davide Sangiorgi, Ina Schaefer, Peter Y. H. Wong
2013 Lecture Notes in Computer Science  
We give an overview of the architectural aspects of ABS: a feature-driven development workflow, a formal notion of deployment components for specifying environmental constraints, and a dynamic component  ...  We employ an industrial case study to demonstrate how the various aspects work together in practice.  ...  Job to ClientJob, so we can add a mock database to the object under test.  ... 
doi:10.1007/978-3-642-35887-6_6 fatcat:z5qaov4jznbntkb2zy2r2k33nu

Computer-Aided Software Engineering in a distributed workstation environment

David B. Leblang, Robert P. Chase
1984 Proceedings of the first ACM SIGSOFT/SIGPLAN software engineering symposium on Practical software development environments - SDE 1  
Computer-Aided Software Engineering environments are becoming essential for complex software projects,  ...  Acknowledgement s In addition to the authors, DSEE project members Gordon McLean, Howard Spilke, John Yates, and Pat Bergeron contributed to this paper.  ...  development environment.  ... 
doi:10.1145/800020.808255 dblp:conf/sde/LeblangC84 fatcat:5elsr4qmozasrnucdfmyyacz4q
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