Oscar Barros

Oscar Barros
University of Chile · Departamento de Ingeniería Industrial

PhD U. Wisconsin

About

57
Publications
57,215
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371
Citations
Introduction
Dr. Barros has been recently dedicated to the development of an original methodology for the design of businesses and their processes, based on the idea of patterns. He also directs a large-scale applied research program in health services, which has already produced general solutions that are implemented in several hospitals, resulting in the book Business Engineering and Health Service Design with Applications for Health Care Institutions, published in USA by Business Expert Press in 2013.
Additional affiliations
March 1980 - present
University of Chile
Position
  • Professor (Full)
Description
  • Creator of the Master In Business Engineering (MBE) and its former Director
January 1980 - present
University of Chile
Position
  • Professor (Full)
Description
  • Dr. Barros created the first OR and IS Masters in Chile. Currently he is developing an original methodology for the design of businesses and their processes, based on the idea of patterns, creating the Master in Business Engineering on the subject.

Publications

Publications (57)
Preprint
Full-text available
Abstract Background: Measuring the efficiency of health services using Data Envelopment Analysis (DEA) is a common practice nowadays. In addition, some studies use analytical techniques to discover the variables that explain the efficiency level of such services. Nevertheless, few DEA analyses have resulted in proposals to design organizational hea...
Article
Full-text available
This paper centers on the full structure design of firms providing complex services, like health, which include the production flow, its management, and flows components. This work proposes a full design solution, improving on current partial designs. The proposed solution integrates disciplines –modularity, enterprise architecture, Analytics, and...
Article
Full-text available
Demand forecasting and capacity management are complicated tasks for emergency healthcare services due to the uncertainty, complex relationships, and high public exposure involved. Published research does not show integrated solutions to these tasks. Thus, the objective of this paper is to present results from three hospitals that show the feasibil...
Preprint
Full-text available
Background: Unsatisfactory service at Emergency ambulance services is common worldwide, with long delays that increase patients’ risk. Thus, the work reported in this paper proposed and tested a new design of the Emergency ambulance service for a region of Chile, which uses a new formal method to make medical decisions flow faster and of better qua...
Preprint
Full-text available
Purpose This paper focuses on the design of the overall structure of multilevel enterprises providing complex services, e.g. large companies offering complex customized logistics or financial services, and public services like health. Such design includes the dynamic customization of production activities that generate a complex service, according...
Article
Purpose The purpose of this paper is to present a process architecture pattern for designing particular components of a complex service. The proposal emphasizes the design of the service production flow component, following modularity ideas, which determines the sequence of actions needed to generate a high quality and efficient service. The author...
Article
Full-text available
Background: Most ED have overcapacity with poor service measured by LOS. We hypothesized that a formal design of the ED production flows will greatly improve service. For this, we propose a framework and a methodology that was tested in a large hospital, including new flows’ implementation. Methods: Design started by analyzing the ED’s production a...
Article
Background Most emergency departments have overcapacity with poor service measured by length of stay. We hypothesized that a formal design of the emergency department production flows will improve service. Thus, we propose a methodology that was tested in a large hospital, including new flow implementation. Results We implemented new workflows dur...
Book
Full-text available
Ha habido muchos intentos de sintetizar el conocimiento de cómo una empresa debería estructurar sus procesos de negocio, el personal que los ejecuta, los Sistemas de Información que apoyan a ambos, y la capa de Tecnología de la Información (TI) sobre la cual esos sistemas operan, de tal manera que estén alineados con la estrategia y modelo del nego...
Preprint
Full-text available
Objectives: To design the Emergency service production flow of a large hospital and implement the new flows, in order to improve service, measured by LOS, by means of making better use of resources to increase productivity. Methods: The design started by analyzing the Emergency's production data and performance, obtained from full digital patients'...
Preprint
Full-text available
Resumen: Para la Urgencia del Hospital San Juan de Dios de Santiago hicimos un diseño de la producción del servicio médico entregado, el cual implementamos y sintetizamos a continuación. Analizando la data de producción y desempeño de la urgencia del hospital concluimos que los pacientes clasificados como M2 y M3 por el Triage representan más del 9...
Book
Full-text available
Abstract This work presents an innovative approach to business design, known as Business Engineering, and its application to service offerings design in general and health services in particular. Such an approach is characterized by: • Integrating many disciplines—Ontology, Strategy, Business Models, Modularization, Platform Design, Case Management...
Book
Full-text available
This work presents an innovative approach to business design, known as Business Engineering, and its application to service offerings design in general. Such an approach is characterized by: • Integrating many disciplines—Ontology, Strategy, Business Models, Modularization, Platform Design, Case Management, Business Processes, Business Intelligenc...
Book
Full-text available
Prólogo Durante más de 15 años he estado trabajando en el desarrollo de las bases de lo que yo llamo Ingeniería de Negocios, con el objetivo de proporcionar herramientas, como otras disciplinas de la Ingeniería, al diseño de las empresas y sus servicios. Este esfuerzo ha sido dirigido a mostrar que las empresas pueden diseñarse formalmente y que...
Article
Full-text available
Background: Measuring efficiency of health services using Data Envelopment Analysis
Article
Full-text available
A Business Architecture (BA) comprises different models at different levels of abstraction. At the higher levels, the business goals and architecture are defined. At the lower levels, models become more detailed for implementing the supporting information system. So, an integrated modeling approach is key for designing such architecture. The differ...
Book
Full-text available
This book presents an innovative approach to business design, known as Business Engineering, and its application to service offerings design in general and health services in particular. Such an approach is characterized by: • Integrating many disciplines –Strategy, Business Models, Enterprise Architecture, Processes, Analytics, Information Systems...
Article
Full-text available
In this paper we propose a method to support business process architecture and business process design, and present an application to the domain of public hospitals in Chile. This method is based on the formalization of generic architectures and their internal process structure, proposed in this work as architecture and process patterns, which have...
Article
Full-text available
This paper is motivated by the July Point of View column of Roger Burlton [11] in BPTrends. In that column he proposes, in summary, several perspectives in process modeling – context, process architecture, process analysis, and so on – and different modeling approaches and tools for each perspective. We agree that there should be such perspectives,...
Conference Paper
Full-text available
An Enterprise Architecture (EA) comprises different models at different levels of abstraction. Since existing EA design approaches, e.g. MDA, use UML for modeling, the design of the architecture becomes complex and time consuming. In this Article, we present an integrated and lightweight design approach for EA that uses a generic architecture and p...
Article
Full-text available
Demand forecasting and capacity management are complicated tasks for certain healthcare services due to the inherent uncertainty, complex relationships, and typically high public exposure involved. Health service demand in three Chilean hospitals has been studied concluding that it can be forecast with high accuracy using Neural Networks and Suppor...
Article
Full-text available
Purpose – The purpose of this paper is to propose a method to support business process architecture and business process design, and present an application to the domain of public hospitals in Chile. Design/methodology/approach – This method is based on the formalization of generic architectures and their internal process structure, proposed in th...
Article
Full-text available
Purpose – To develop a novel approach for encapsulating high level business knowledge and logic of a given application domain in patterns and frameworks, which can be reused and be applied to improve a process for a given business in the domain and to develop an application to support such process. Design/methodology/approach – Formal and explicit...
Article
Full-text available
In this paper, I will present a novel approach to encapsulate high level knowledge and business logic in Business Objects Frameworks. These frameworks are derived from formal and explicit Business Process Patterns, which are generalized designs that include the best practices for businesses in a given application domain. A pattern and a framework d...
Article
Full-text available
A novel approach for the design of Business Objects Frameworks that encapsulates high level business knowledge and logic is presented. These frameworks are derived from formal and explicit Business Process Patterns that include best practices for businesses in a given application domain. A pattern and a framework derived from it can be applied to i...
Technical Report
Full-text available
This paper presents the author´s first original ideas on Business Engineering and Process Patterns, which have latter been expanded in four books (one in English) and tens of papers (mostly in English). Most of them can be found in this site. Este documento de trabajo presenta las primeras ideas que el autor publicó acerca de las originales ideas d...
Conference Paper
Full-text available
From External Design to Object Oriented Specification
Article
We present an object-oriented approach to development based on a high-level problem-oriented external-view model of an information system. It covers the integrated specification and design of the structural (data) and behavioral (processing) components of an information system. We thus avoid current consistency problems associated with separate mod...
Conference Paper
Full-text available
Presents an integrated methodology for deriving the requirements of an information system based on the design of the organizational components external to the computer. This methodology, which is supported by CASE software, results in the definition and formal specification of computer objects that satisfy the information system requirements. Such...
Conference Paper
Full-text available
Presents an integrated methodology for deriving the requirements of an information system based on the design of the organizational components external to the computer. This methodology, which is supported by a CASE software, results in the definition and formal specification of computer objects that satisfy the above requirements. Such objects can...
Article
An approach and a set of tools are provided for integral computer support of information system building. They are based on and integrate such currently popular techniques as structured analysis and entity relationship modeling. Additional components are provided that complement and formalize these approaches and allow for automatic generation of c...
Article
A generalized graphical scheme for organizational modeling is proposed. Such a scheme is based on systems theory and general patterns of organizational processes regulation derived from empirical observation and experience. This type of modeling is shown to be useful in approaching the design of the components external to the computer of an informa...
Conference Paper
An end user-, object-oriented requirements specification language, suitable for transaction-processing data base applications, is presented. Such language is formal and hence computer processable, allowing for specification execution and simulation, thus facilitating a prototype development approach.
Conference Paper
Full-text available
An approach and a set of tools are provided for integral computer support of information system building. They are based on and integrate currently popular techniques such as structured analysis and entity-relationship modeling. Additional components are provided that complement and formalize the above approaches and make it possible to automatical...
Chapter
Full-text available
A general graphical model for organizational information Systems (IS) is proposed. This model is based on systems theory and general patterns of organizational processes regulation derived from empirical observation and experience. It includes generalized decision making and data manipulation functions to regulate generalized organizational process...
Conference Paper
Full-text available
This paper sets the foundation for later work of the author. In particular it introduces the concept of processes and defines the rol of IS in their management. Then it defines the problem of joint process and IS design in terms of alternatives structures that are similar to current ideas of Enterprise Architure. Finally, it uses Analytics inserted...
Article
The front end of all modern business Information Systems (IS) development methodologies includes an information requirement analysis step. It is shown that this step should be expanded to explicitly consider organizational components external to the computer as subject to change and hence design. This design problem is related to the alternative wa...
Article
A series of equilibrium models for the agroindustrial sector is presented. The use of these models for governmental policy decisions is shown. In all cases, there is an inherent network structure, varying from a simple network flow problem to networks which are multiproduct, generalized and with additional constraints. We show solution techniques u...
Article
Full-text available
A linear programming model and an information system designed for tactical planning in a vertically integrated forest industry is presented. The industry jointly manages forest lands, a pulp plant and a sawmill. The model considered technological, geographical, silvicultural and economic aspects of planning and gives guidelines for management of ti...
Article
A framework for the definition of alternative general design patterns in MIS design is presented. This is based on the identification of the general structure-general functions and their relationships-of a MIS, the definition of MIS types as instances of such structure, and the specification of various degrees of integration that can be achieved wi...
Article
A methodology for the logical design of Information Systems is presented. This methodology emphasizes structure design. It is based on a precise and extended concept of system logical design, which leads to consider management and organizational factors that have been ignored by most methods. A well-defined procedure for generating the “best” desig...
Article
Full-text available
Resumen Se presenta un enfoque que permite definir componentes genéricos de software, materializados por medio de frameworks, a partir de patrones de procesos de ne-gocios. Tales componentes enfatizan la lógica del negocio que puede apoyar las diferentes actividades de un proceso. Un framework preconstruido permite desa-rrollar soluciones computaci...

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Projects

Projects (2)
Project
In the past years, Dr. Barros has been dedicated to the development of an original methodology for the design of businesses and their processes, based on the idea of patterns, integrated with the design of Information Systems that support such processes, which he has communicated in three book in English and four in Spanish, and several international publications. His last contribution is the design and creation of the novel and recognized Master in Business Engineering (MBE), which is based on innovative concepts of education and technological development and his ideas about how business should be designed. He also directs a large-scale applied research program that is applying the ideas of Business Engineering to health services, which has already produced general solutions that are implemented in several hospitals with very significant impacts on productivity and quality of service.