As organizacoes gastam uma quantidade significativa de recursos para mitigar riscos vindos de fora do perimetro organizacional, poucas sao as que consideram explicitamente as ameacas vindas dos actores internos. Monitorizar e... more
As organizacoes gastam uma quantidade significativa de recursos para mitigar riscos vindos de fora do perimetro organizacional, poucas sao as que consideram explicitamente as ameacas vindas dos actores internos. Monitorizar e correlacionar em tempo real, caracteristicas tecnologicas das actividades que estao a ser realizadas atraves dos sistemas e uma forma de detectar e identificar a ocorrencia de anomalias que podem por em causa a seguranca da organizacao e provocar quebras na receita. Fugas de informacao para o exterior pela forma de comunicacoes via Internet ou atraves de comunicacao com volume de armazenamento de dados externo, sao algumas das anomalias que sao propostas detectar. Esta investigacao tem a sua genese na deteccao destes problemas, propondo um sistema automatico nao supervisionado de deteccao de comportamentos anomalos, mais propriamente, num Call Center e atraves de um conjunto bem definido e limitado de dados A ferramenta grafica, ROA - Representacao Organizacion...
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Developing cross-organizational business processes is a tedious task. The partners have to agree on a com-mon data format and meaning as well as on the Quality of Service (QoS) requirements each partner has to fulfill. The QoS... more
Developing cross-organizational business processes is a tedious task. The partners have to agree on a com-mon data format and meaning as well as on the Quality of Service (QoS) requirements each partner has to fulfill. The QoS requirements are typically described using Ser-vice ...
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The Portuguese Air Force has made an effort to remain at the forefront of organizations, examining problems like the inadequacy of Information Systems and the treatment of business as rigid hierarchical structures. The process of change... more
The Portuguese Air Force has made an effort to remain at the forefront of organizations, examining problems like the inadequacy of Information Systems and the treatment of business as rigid hierarchical structures. The process of change initiated in 2009, which is transversal to the organization, recommends a set of actions, including the definition of business processes, to determine the organizational “AS IS” important to the establishment of “TO BE”. Simultaneously, the Air Force is studying concepts related to enterprise architecture while trying to deepen the relationship between mission, vision, goals, objectives, strategy, tactics, policy, business rules, and process architecture. In this context, considering important creating and identifying a way to validate the consistency between Enterprise Architecture and Process Architecture important, the authors propose the creation of a value matrix, representing objectives and processes associated with a set of rules for its creat...
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2.3 Dimensions of Context Dependence . . . . . . . . . . . . . . . . . . . . . 10 2.4 Context and Knowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.4.1 Different Types of Knowledge . . . . . . . . . . . . . . . . . . .... more
2.3 Dimensions of Context Dependence . . . . . . . . . . . . . . . . . . . . . 10 2.4 Context and Knowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.4.1 Different Types of Knowledge . . . . . . . . . . . . . . . . . . . . 11 2.4.2 Context: the Brzillon standpoint . . . . . . . . . . . . . . . . . . 12 2.4.3 Role of Context in ...
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Nowadays increasingly the population makes use of Information Technology (IT). As such, in recent year the Portuguese government increased its focus on using the IT for improving people-s life and began to develop a set of measures to... more
Nowadays increasingly the population makes use of Information Technology (IT). As such, in recent year the Portuguese government increased its focus on using the IT for improving people-s life and began to develop a set of measures to enable the modernization of the Public Administration, and so reducing the gap between Public Administration and citizens.Thus the Portuguese Government launched the Simplex Program. However these SIMPLEX eGov measures, which have been implemented over the years, present a serious challenge: how to forecast its impact on existing Information Systems Architecture (ISA). Thus, this research is focus in addressing the problem of automating the evaluation of the actual impact of implementation an eGovSimplification and Modernization measures in the Information Systems Architecture. To realize the evaluation we proposes a Framework, which is supported by some key concepts as: Quality Factors, ISA modeling, Multicriteria Approach, Polarity Profile and Qualit...
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This communication’s focus will be on the organizational engineering as a support to internal control system. The implementation of this kind of internal control is essential to promote more dynamic auditing within the organizations. The... more
This communication’s focus will be on the organizational engineering as a support to internal control system. The implementation of this kind of internal control is essential to promote more dynamic auditing within the organizations. The attention that has been given to internal control has had some effects, i.e., the change of organizational behaviour, from structure to process. In this paper, we made the extension of the CEO framework, using the “Enterprise Risk Management – Integrated Framework”, published in September of 2004 by “Committee of Sponsoring Organizations of the Treadway Commission ” (COSO), as a basis to the modelling of internal control mechanisms.
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This paper presents a paradigm for the organizational design of complex robotics missions.
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Publisher Summary This chapter discusses various ways in which homomorphic filtering has been explored for use with seismic data processing. Homomorphic filtering represents an alternative approach to the deconvolution of the seismic... more
Publisher Summary This chapter discusses various ways in which homomorphic filtering has been explored for use with seismic data processing. Homomorphic filtering represents an alternative approach to the deconvolution of the seismic signal. This class of filtering techniques represents a generalization of linear filtering to encompass a variety of nonlinear filtering problems. One particular class of nonlinear filtering problems to which it has been successfully applied in a number of applications is that of deconvolution. Within the context of seismic signal processing, a number of approaches have been explored for the application of this class of nonlinear filtering techniques. One consists of applying the method directly to extract the reflector series from the received signal. A second corresponds to using homomorphic filtering to estimate the source pulse. From this estimate, an inverse filter is then designed using one of several possible techniques including Wiener inverse filter design.
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The paper asserts that the process of emergence which constitutes the cornerstone of contemporary sociological thought on organization lies also at the root of the process of organizational engineering. Furthermore it proposes that if the... more
The paper asserts that the process of emergence which constitutes the cornerstone of contemporary sociological thought on organization lies also at the root of the process of organizational engineering. Furthermore it proposes that if the study of HRIS has crucial organizational implications, then the study of HRIS should encompass also engineering and modelling considerations. An organizational modelling framework is put forward which contains the following propositions, also applicable to the design of HRIS from an integrated perspective: (1) Enhanced traceability of organizational agents, (2) Situated enterprise modelling, (3) Model acquisition from action repositories, (4) Capturing and modelling work practices, (5) Aligning design and execution.
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This paper presents a paradigm for the organizational design of complex robotics missions. A mission with important strategic goals and involving a large number of technological resources and different decision levels, such as complex... more
This paper presents a paradigm for the organizational design of complex robotics missions. A mission with important strategic goals and involving a large number of technological resources and different decision levels, such as complex robotics based missions, can be modelled as an organization. To avoid compromising the strategic goals, organizations modelling principles must account for the management of any crisis situations. Therefore, the mission model may have to be redesigned along the execution of the mission. This amounts to a dynamic reorganization of the mission model. The proposed paradigm is supported on a business modelling framework to design a mission reference model, on a set of performance measures defining a set of crisis classes, and on a strategic plan that defines how the mission model is modified at a crisis situation. The proposed paradigm is exemplified in a simplified version of the Mars Pathfinder mission, using, exclusively, public domain data.
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: Nonlinear systems which obey a principle of superposition under some operation have been termed homomorphic. A class of homomorphic systems which has found wide application is that involving the filtering of signals that have been... more
: Nonlinear systems which obey a principle of superposition under some operation have been termed homomorphic. A class of homomorphic systems which has found wide application is that involving the filtering of signals that have been combined by convolution. The use of homomorphic systems to deconvolve both seismic reflection and teleseismic data has been proposed and explored by a number of researchers with varying success. The resultant strategies may be globally characterized as a deterministic approach to signal analysis in that no account is made for realistic deviations of the data from the idealized time- invariant seismic models. Several novel results are presented in this paper. A new class of systems, called band-pass homomorphic systems, is discussed, which are matched to the band-pass nature of seismic signals. The implementation of homomorphic systems is improved and made more reliable, through the use of a new phase unwrapping technique. Finally, the concept of short-ti...
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There is no doubt around the dynamics and uncertainty characterizing organizations and their environments. Consequently, contemporary organizational thinking has evolved to embrace paradigms supported by complexity theory and its... more
There is no doubt around the dynamics and uncertainty characterizing organizations and their environments. Consequently, contemporary organizational thinking has evolved to embrace paradigms supported by complexity theory and its principles. Complexity theory involves the study of many actors and their interactions. One of the central topics regarding interaction between self-interested agents is cooperation. Cooperation is crucial for societies and organizations, since it allows the creation of common goods that no single individual could establish alone. However, this situation itself presents a dilemma, because as the creation of these goods requires an individual effort and the result is shared by everyone, there is the temptation to make an individual contribution as little as possible and receive as much of the result as one can. The problem of how can cooperation emerge in a organization of self-interested individuals is one of the central questions addressed by social scienc...
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The functional decomposition of a business process breaks it down into progressively less granular activities. Decomposition contributes to the modular design of a system, the reuse of its parts and to its overall comprehensibility. But... more
The functional decomposition of a business process breaks it down into progressively less granular activities. Decomposition contributes to the modular design of a system, the reuse of its parts and to its overall comprehensibility. But achieving these qualities requires a business process to be decomposed consistently, which implies it is always split into an identical set of activities according to a specific purpose, regardless of the modeller’s and modelling context. This paper describes an application of the principle of role-based separation of concerns to consistently decompose a business process into its constituent atomic activities, thus separating its distinct features and minimising behaviour overlap. An activity is abstracted as a collaboration between role types that are played by entities. The decomposition method successively separates the overlapping roles until an activity is specified as a collaboration of an orthogonal set of role types. The method facilitates th...
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We refer to Enterprise Cartography (EC ) as the process of representing an Enterprise observed directly from reality. It differentiates from Enterprise Architecture (EA) because it focuses on producing representations based on... more
We refer to Enterprise Cartography (EC ) as the process of representing an Enterprise observed directly from reality. It differentiates from Enterprise Architecture (EA) because it focuses on producing representations based on observations, and therefore, does not include the purposeful design, as one expects in EA. To abstract and represent the enterprise, one requires a full set of familiar concepts from the EA discipline, such a model, views, viewpoints, representation rules, etc. However, to abstract and represent the enterprise reality, one also needs principles and instruments to deal with the continuous and fast transformations going on in the enterprise. Without them, enterprises will likely change faster than one can represent them, and representations become obsolete long before they are completed. We have been working on this issue over a decade and have come up with a set principles and instruments to enable effective EC in continuously changing enterprises. We have appl...
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This paper, framed in a vast investigation, describes the application of techniques and methodologies in Organizational Engineering connected to the associated risk to the processes developed in an Emergency Service of an important... more
This paper, framed in a vast investigation, describes the application of techniques and methodologies in Organizational Engineering connected to the associated risk to the processes developed in an Emergency Service of an important Portuguese Hospital. The transactions performed in an emergency service and the consequent risk identification (negative behaviour associated to those transactions) is done based on static and dynamic models, developed during the business modelling. Any non-trivial system is better portrayed trough a small number of reasonably independent models. From this point of view it is important to look at the systems from a "micro" perspective, which allows us to analyse the system at the transaction level. All processes have some associated risk (inherent risk). Its identification will be decisive for future analysis and for the consequent decision over the need, or not, to study internal control mechanisms. This decision will depend on the risk level t...
Originating from quite different fields of theory and practice, the terms "Enterprise Ontology" and "Enterprise Architecture" currently belong to the standard vocabulary of those professionals who are concerned with... more
Originating from quite different fields of theory and practice, the terms "Enterprise Ontology" and "Enterprise Architecture" currently belong to the standard vocabulary of those professionals who are concerned with (re)designing and (re)engineering enterprises, thereby exploiting modern information and communication technologies for innovating products and services as well as for optimizing operational performance. Because of the inherent characteristics of modern enterprises, often operating within networks of cooperating enterprises, the task of these professionals can rightly be characterized as having to master unprecedented high complexity. The statement, put forward in the paper, that the current notion of Enterprise Architecture does not offer satisfactory help and thus need to evolve into an effective conceptual tool, is clarified in a historical context. In order to let Enterprise Architecture become a sensible, effective notion, complementary to Enterp...
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There is a lack of artifacts to handle the enterprise self, and consequently with its dynamic self-governing system, responsible for continuously assuring its viability and sustainability, in a fast changing environment. We need... more
There is a lack of artifacts to handle the enterprise self, and consequently with its dynamic self-governing system, responsible for continuously assuring its viability and sustainability, in a fast changing environment. We need constructs to better model enterprises as self-observing systems, and not merely as observed systems. We introduce the concept of Enterprise Operating System (EOS), as the emerging enterprise ́s control and governing system, which turns enterprises into autonomous, intelligent, viable and sustainable entities. Our assumption is that all organizations, being complex social-technical systems, evolve to higher complex levels, whereby at some point “organizational autonomous life” emerges as a reification, at a macro systemic level, of the social-technical network of its autonomous agents or its network nodes. This reification is precisely realized by the emergence of the EOS, which turns the enterprise into a kind of autopoietic system, with logical closure, ch...
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... Page 4. Preseit research is directed at de riving robust non-linear filtering esti-mation procedures and at practical appli cations for low-bit rate transn'.ision. ... 1978. (9) R. GARCIA GOMEZ, JM TRIBOLET: "A Nri Kalman... more
... Page 4. Preseit research is directed at de riving robust non-linear filtering esti-mation procedures and at practical appli cations for low-bit rate transn'.ision. ... 1978. (9) R. GARCIA GOMEZ, JM TRIBOLET: "A Nri Kalman sequential estimation algo-rithm of speech parameters". ...
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Spectral modeling is a key step in several speech processing applications. This paper presents a novel model capable of accurately handling the short-time spectrum of nonstationary voiced speech. As is well known, locally stationary,... more
Spectral modeling is a key step in several speech processing applications. This paper presents a novel model capable of accurately handling the short-time spectrum of nonstationary voiced speech. As is well known, locally stationary, i.e., periodic, voiced speech exhibits a well-defined spectral line structure. It is shown in this paper that locally nonstationary voiced speech, i.e., speech with variations of both pitch and vocal tract, within the analysis window, still exhibits, in a generalized form, a spectral line structure, each line being formed by a series of well-defined components. The applications of this model to several speech processing problems, namely those involving speech prediction and pitch detection are presented, along with supporting experimental results.
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Prediction plays a key role in many signal processing applications. Linear Prediction has, in particular, been extremely useful to the development of digital speech processing techniques and applications. There is however a growing need... more
Prediction plays a key role in many signal processing applications. Linear Prediction has, in particular, been extremely useful to the development of digital speech processing techniques and applications. There is however a growing need for improved forms of prediction. We discuss, in this paper, a form of non-linear prediction, namely, the prediction of the phase of speech signals. This study
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Innovating is an attitude towards the world.For humanity to improve its capabilities to innovate, then innovation, as an individual capability with social value, must be nurtured since birth, in every human being, along with the full... more
Innovating is an attitude towards the world.For humanity to improve its capabilities to innovate, then innovation, as an individual capability with social value, must be nurtured since birth, in every human being, along with the full toolset of values, such as liberty, responsibility, solidarity, compassion, honesty, among others. A foundation for the acquisition and maturation of the innovation attitudes in an individual lay on its basic drive to question the world, to understand, i.e. model it, and in such process, to identify perplexities that confront him as problems to be solved or opportunities to be addressed. I consider the development and maturation of these capabilities in each individual an essential responsibility of academic institutions. To adopt encompassing processes for providing learning environments, for the students to acquire and develop innovation capabilities, Academic Institutions need to refurbish their production tool set, so that it acquires inherent innov...
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Organizational change can be regarded as a process that changes the state of the organization. This simple yet powerful idea is the ground basis for the work being presented in this paper.
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ABSTRACT Much time is lost, in organizations, in the handling of unknown exceptions because organizational models are not current or coherent with reality and there is a lack of concepts and methods in organizational engineering (OE), for... more
ABSTRACT Much time is lost, in organizations, in the handling of unknown exceptions because organizational models are not current or coherent with reality and there is a lack of concepts and methods in organizational engineering (OE), for a continuous and timely update of models of organizational reality. To address these problems, a renowned methodology for OE -- DEMO (Design and Engineering Methodology for Organizations) and its underlying theory are improved and extended enabling a precise and integrated modeling of three aspects that we consider to be part of the function perspective of an organization: (1) viability -- specification of vital norms of operation that ensure the viability of the organization, dysfunctions and their causing exceptions, (2) change -- specification of the organizational engineering processes responsible for Generation, Operation and Discontinuation of organizational artifacts (OAs) -- for example, business rules or organizational actors -- in order to solve dysfunctions and (3) architecture -- specification of design rules that guide the referred engineering processes, restricting the "shape" of their end result -- OAs.
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This chapter aims at clarifying the notion of organization se If-awareness (OSA) as the state of a collective awareness of the enterprise system. We examine how such awareness arises from the collective action of the enterprise’s agents,... more
This chapter aims at clarifying the notion of organization se If-awareness (OSA) as the state of a collective awareness of the enterprise system. We examine how such awareness arises from the collective action of the enterprise’s agents, while applying principles and methods of enterprise engineering and enterprise architecture. We find that value modeling is a vital enabler of OSA while bridging the gap between the teleological and ontological views of an enterprise.