A Context-aware and workflow-based framework for pervasive environments

Download
2014
Avenoğlu, Bilgin
In this thesis study, a framework offering people help and guidance for organizing their daily activities is proposed. This framework allows users to model their daily activities in the form of workflows. Due to the dynamic nature of pervasive environments, workflows are enabled to be adaptable at runtime according to context information collected in pervasive environments. A workflow engine is used for modeling and management of workflows and a separate rule engine with Complex Event Processing (CEP) capability is incorporated into the framework for both enhancing workflow adaptation and execution and for rule-based context reasoning. The adaptation model in the framework allows modeling activities in a hierarchical manner, from high level abstract activities to more detailed ones. Event-driven Architecture (EDA) is utilized for loosely coupled interaction between the workflow engine and the rule engine, allowing these engines, other context sources and user-level applications to exchange data among each other. Since workflow engines are sufficiently complex, EDA allows incorporation of context information into the workflow models without modifying the workflow language. A higher automation level than the level supported by workflows is proposed by processing events in pervasive environments using CEP. A prototype implementation is developed and the framework is evaluated with some real life examples and experimental tests demonstrating its applicability.

Suggestions

A context-aware and workflow-based framework for pervasive environments
Avenoglu, Bilgin; Eren, Pekin Erhan (2019-01-01)
Using currently available infrastructure in pervasive environments it is possible to provide intelligent mechanisms that offer people help and guidance for organizing their daily activities. In this study, a framework providing such capabilities is proposed. This framework allows users to model their daily activities in the form of workflows, which are adaptable at run-time according to context information collected in pervasive environments. A workflow engine is used for modelling and management of workflo...
A method for decentralized business process modeling
Türetken, Oktay; Demirörs, Onur; Department of Information Systems (2007)
This thesis study proposes a method for organizations to perform business process modeling in a decentralized and concurrent manner. The Plural method is based on the idea that organizations’ processes can be modeled by individuals actually performing the processes. Instead of having a central and devoted group of people to understand, analyze, model and improve processes, individuals are held responsible to model and improve their own processes concurrently. These individual models are then integrated to f...
An Examination of the effect of YFYI: Turkey’s first entrepreneurship competition
Bediz Sinan, Beliz; Oran, Adil; Department of Business Administration (2020)
The aim of this study is to investigate and examine the effect of Yeni Fikirler Yeni İşler (YFYI) Entrepreneurship Program on entrepreneurship. The study has two main aims: a. Understanding and documenting the effect that YFYI has had with examples and survey-based statistics b. Investigating whether there is a significant difference between the finalist that were awarded and those that did not receive any award In accordance with this purpose, the teams participating in the program from 2005, when YFYI sta...
A risk management method for a Turkish defence industry firm
Karadaş, Erhan; Onay, Lamia Zeynep; Department of Business Administration (2007)
In this study, a risk management methodology for the business development phase of a Turkish defense industry firm’s projects is proposed. The proposed method is based on the contemporary risk management practices and offers the integration of risk management process on top of existing project management processes in the business development phase, besides being cost effective and applicable. The method suggests a format for a risk management plan with two new sections, results, and compliancy. Furthermore,...
Multimedia data modeling and semantic analysis by multimodal decision fusion
Güder, Mennan; Çiçekli, Fehime Nihan; Department of Computer Engineering (2015)
In this thesis, we propose a multi-modal event recognition framework based on the integration of event modeling, fusion, deep learning and, association rule mining. Event modeling is achieved through visual concept learning, scene segmentation and association rule mining. Visual concept learning is employed to reveal the semantic gap between the visual content and the textual descriptors of the events. Association rules are discovered by a specialized association rule mining algorithm where the proposed str...
Citation Formats
B. Avenoğlu, “A Context-aware and workflow-based framework for pervasive environments,” Ph.D. - Doctoral Program, Middle East Technical University, 2014.