Aqueo Kamada

Transformação de esquema relacional para esquema orientado a objeto em sistemas de banco de dados heterogeneos

Execução de serviços baseada em regras de negocio

No atual mundo globalizado, com interações fortemente baseadas na Web, as relações entre pessoas,... more No atual mundo globalizado, com interações fortemente baseadas na Web, as relações entre pessoas, empresas e órgãos de governo estão sujeitas a mudanças cada vez mais rápidas. Esse cenário torna ainda mais crítico o já antigo problema de manutenção de sistemas, uma vez que as atualizações precisam ser realizadas para contemplar novos modelos de negócio, no contexto destas mudanças rápidas. Esta situação justifica a necessidade de uma abordagem que consiga capturar as mudanças nos negócios e rapidamente implementá-las nos sistemas computacionais. Considera-se que existem porções da lógica de negócio que são bastante voláteis e suscetíveis às mudanças e outras porções que são bastante estáveis e muito pouco suscetíveis às mudanças. Neste contexto, propõe-se um modelo para desenvolvimento rápido e execução de serviços, baseado em regras de negócio. Neste modelo as porções voláteis são externalizadas como regras de negócio e as porções estáveis como serviços. A prova de conceito desta abordagem traduz regras modeladas em linguagem natural para regras no modelo da máquina de regras instanciada, que invoca os serviços.

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Ontology Based Business Rules and Services Integration Environment

IGI Global eBooks, Jan 18, 2011

Nowadays, the relationships among people, governments and organizations are subject to fast chang... more Nowadays, the relationships among people, governments and organizations are subject to fast changes. The increasing demand for new services conducts to the need to create services from scratch and by integrating disparate and heterogeneous legacy systems. The problem is that the monolithic form as most of the systems were implemented turns the change excessively slow and expensive. Considering that some business logic portions are quite volatile and susceptible to changes and other portions are quite stable and less susceptible to changes, this paper proposes ontology based integrated development environment (IDE) that can capture business changes and quickly implement them into computational systems. The volatile portions are externalized as business rules and the stable portions as SOA based services. Business rules' facts and conditions are linked to services, which are discovered in the business rules development or maintenance time. The IDE aggregates a set of tools to automate the modeling of business rules in the business people's terminology and to automate the integration of services. It is based on a set of ontologies to deal with metadata related to services, vocabularies and business rules. Business rules are modeled according to OMG's Semantics of Business Vocabularies and Business Rules Metamodel.

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Web services composition based on business rules

International Conference on Software Engineering, Nov 6, 2007

In the current globalized world, characterized by strong Web based interactions, relationships be... more In the current globalized world, characterized by strong Web based interactions, relationships between people and organizations are subject to fast changes. This situation justifies the need for an approach that can capture business changes and quickly implement them into computational systems. It is considered that some business logic portions are quite volatile and susceptible to the changes and other portions are quite stable and less susceptible to the changes. In this context, a model for fast development of services based on business rules and Web services is proposed. The volatile portions are externalized as business rules and the stable portions as Web services. This paper presents a framework for Web services composition based on business rules and service ontology. Business rules' facts and conditions are linked to Web services, which are discovered in the business rules development or maintenance time. Business rules are modeled according to OMG's SBVR metamodel.

Execução de serviços baseada em regras de negocio

No atual mundo globalizado, com interações fortemente baseadas na Web, as relações entre pessoas,... more No atual mundo globalizado, com interações fortemente baseadas na Web, as relações entre pessoas, empresas e órgãos de governo estão sujeitas a mudanças cada vez mais rápidas. Esse cenário torna ainda mais crítico o já antigo problema de manutenção de sistemas, uma vez que as atualizações precisam ser realizadas para contemplar novos modelos de negócio, no contexto destas mudanças rápidas. Esta situação justifica a necessidade de uma abordagem que consiga capturar as mudanças nos negócios e rapidamente implementá-las nos sistemas computacionais. Considera-se que existem porções da lógica de negócio que são bastante voláteis e suscetíveis às mudanças e outras porções que são bastante estáveis e muito pouco suscetíveis às mudanças. Neste contexto, propõe-se um modelo para desenvolvimento rápido e execução de serviços, baseado em regras de negócio. Neste modelo as porções voláteis são externalizadas como regras de negócio e as porções estáveis como serviços. A prova de conceito desta abordagem traduz regras modeladas em linguagem natural para regras no modelo da máquina de regras instanciada, que invoca os serviços.

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Transformação de esquema relacional para esquema orientado a objeto em sistemas de banco de dados heterogeneos

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Flexible Software Development based on Business Rules

Anais do XXI Simpósio Brasileiro de Engenharia de Software (SBES 2007), 2007

Resumo. Atualmente, com as relações entre as pessoas e organizações baseadas em aplicações comput... more Resumo. Atualmente, com as relações entre as pessoas e organizações baseadas em aplicações computacionais via Web, a necessidade de mudanças nestas aplicações acontece em períodos muito curtos. Neste contexto, este artigo propõe um modelo para capturar as mudanças nos negócios e rapidamente implementá-las nos sistemas computacionais. O modelo inclui uma abordagem para desenvolvimento rápido de serviços considerando que as porções voláteis da lógica de negócio possam ser externalizadas como regras de negócio e as porções estáveis como serviços Web. Apresenta-se um ambiente de desenvolvimento integrado de regras de negócio e ontologias como parte deste modelo, onde os fatos e as condições das regras de negócio são associados a serviços Web.

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Web services composition based on business rules

Proceedings of the 11th Iasted International Conference on Software Engineering and Applications, Nov 6, 2007

In the current globalized world, characterized by strong Web based interactions, relationships be... more In the current globalized world, characterized by strong Web based interactions, relationships between people and organizations are subject to fast changes. This situation justifies the need for an approach that can capture business changes and quickly implement them into computational systems. It is considered that some business logic portions are quite volatile and susceptible to the changes and other portions are quite stable and less susceptible to the changes. In this context, a model for fast development of services based on business rules and Web services is proposed. The volatile portions are externalized as business rules and the stable portions as Web services. This paper presents a framework for Web services composition based on business rules and service ontology. Business rules' facts and conditions are linked to Web services, which are discovered in the business rules development or maintenance time. Business rules are modeled according to OMG's SBVR metamodel.

Flexible Service Integration Using Business Rules and Service Ontology

In the business systems, the need to allow variations in automated processes, guaranteeing adhere... more In the business systems, the need to allow variations in automated processes, guaranteeing adherence to complex and volatile regulations increases the demand for infrastructures to support the fast development of new Web based business systems. This situation justifies the need for an approach that can capture business changes and quickly implement them into computational systems. Considering that some business logic portions are quite volatile and susceptible to changes and other portions are quite stable and less susceptible to changes, a model for flexible service integration using business rules and service ontology is proposed. The volatile portions are externalized as business rules and the stable portions as Web services. This paper presents the main concepts of the model and an overview of the proposal proof of concept.

Business Rules and Services in the Context of Model Driven Architecture

2008 11th IEEE International Conference on Computational Science and Engineering - Workshops, 2008

Nowadays, the relationships between people and organizations are subject to fast changes. This pa... more Nowadays, the relationships between people and organizations are subject to fast changes. This paper proposes a model for flexible business rules modeling in the context of model driven architecture from OMG - Object Management Group. Considering that some business logic portions are quite volatile and susceptible to changes and other portions are quite stable and less susceptible to changes, the

Ontology Based Business Rules and Services Integration Environment

E-Government Strategies and Advancements

Nowadays, the relationships among people, governments and organizations are subject to fast chang... more Nowadays, the relationships among people, governments and organizations are subject to fast changes. The increasing demand for new services conducts to the need to create services from scratch and by integrating disparate and heterogeneous legacy systems. The problem is that the monolithic form as most of the systems were implemented turns the change excessively slow and expensive. Considering that some business logic portions are quite volatile and susceptible to changes and other portions are quite stable and less susceptible to changes, this paper proposes ontology based integrated development environment (IDE) that can capture business changes and quickly implement them into computational systems. The volatile portions are externalized as business rules and the stable portions as SOA based services. Business rules' facts and conditions are linked to services, which are discovered in the business rules development or maintenance time. The IDE aggregates a set of tools to automate the modeling of business rules in the business people's terminology and to automate the integration of services. It is based on a set of ontologies to deal with metadata related to services, vocabularies and business rules. Business rules are modeled according to OMG's Semantics of Business Vocabularies and Business Rules Metamodel.

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Transformation of SBVR Compliant Business Rules to Executable FCL Rules

Lecture Notes in Computer Science, 2010

The main source of changing requirements of the dynamic business environment is response to chang... more The main source of changing requirements of the dynamic business environment is response to changes in regulations and contracts towards which businesses are obligated to comply. At the same time, many organizations have their business processes specified independently of their business obligations (which include adherence to contracts laws and regulations). Thus, the problem of mapping business changes into computational systems becomes much more complicated. In this paper we address the problem by providing an automated transformation of business rules into a formal language capable of directly mapping onto executable specifications. The model transformation is consistent with MDA/MOF/QVT concepts using ATL to perform the mapping. Business rules are compliant to SBVR metamodel, and are transformed into FCL, a logic based formalism, known to have a direct mapping onto executable specifications. Both, source and target rules are based on principles of deontic logic, the core of which are obligations, permissions and prohibitions.

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Service Composition Applied to E-Government

Building the E-Service Society, 2004

One of the public administration big challenges is the need to integrate services in order to off... more One of the public administration big challenges is the need to integrate services in order to offer a wide variety of new services, more suitable and better designed, that can be electronically accessed in a uniform way. Recently, the Web Service technology appeared with the promise to compose services through the Internet in a simple way. Despite the Web Services advantages, minimal technology independence is desirable at the design of such compositions in order to guarantee and preserve all the efforts invested in the development of services. In this article a Service Composition Management Framework is proposed, that focuses in a technology-independent description. The referred framework is part of a more complete platform, developed for the electronic delivery of Government services.

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A Business Rule Engine Applied to Egovernment Services Integration

IFIP International Federation for Information Processing

A great part of applications is increasingly based on the Internet and the needs for changes in t... more A great part of applications is increasingly based on the Internet and the needs for changes in these applications happen in shorter and shorter periods. Companies, governments and people who wait for almost instantaneous implementations of those changes stimulate this scenario of high demand for changes. In the context of these fast changes, the approaches based on business rules are aiming for an implementation of solutions that are more flexible to changes and that are in a language easily understandable to business people in a business perspective. This article presents a proposal of a Business Rule Engine customized for e-Government applications, considering the componentization andlor Web "servicification" of life event applications with access to several legacy back office systems. The proposed Business Rule Engine is in conformance with the Business Semantics of Business Rules (BSBR) meta-model, which is in its final phase of specification by OMG.

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Business rules in a service development and execution environment

2007 International Symposium on Communications and Information Technologies, 2007

ABSTRACT In the current Web based enterprise systems the need of changes in these systems happens... more ABSTRACT In the current Web based enterprise systems the need of changes in these systems happens in periods shorter and shorter. Considering that some business logic portions are quite volatile and susceptible to the changes and other portions are quite stable and less susceptible to the changes, this paper introduces a model that can capture business changes and quickly implement them into computational systems. The model includes an approach for fast development and execution of services considering that the volatile portions of business logic can be externalized as business rules and the stable portions as Web services. It is proposed a framework for Web services composition based on business rules and service ontology. The framework provides support for business rules definition using a friendly language to the business analysts, for Web services discovery in the business rules definition time, and for making connection between the business rules and Web services in the service execution time. Business rules are modeled according to OMG&#39;s SBVR metamodel.

Business Rules in a Model Driven Service Environment

2007 Eleventh International IEEE EDOC Conference Workshop, 2007

ABSTRACT In the current globalized world, characterized by strong Web based interactions, relatio... more ABSTRACT In the current globalized world, characterized by strong Web based interactions, relationships between people and organizations are subject to fast changes. This situation justifies the need for an approach that can capture business changes and quickly implement them into computational systems. Considering that some business logic portions are quite volatile and susceptible to changes and other portions are quite stable and less susceptible to changes, a model for flexible service integration using business rules and service ontology is proposed. The volatile portions are externalized as business rules and the stable portions as Web services. This paper presents the main concepts of the model and an overview of the proof of concept applied to validate the model.

Metadata Repository Support for Legacy Knowledge Discovery in Public Administrations

Lecture Notes in Computer Science, 2004

One of the big challenges of public administration is the need to understand and evolve legacy sy... more One of the big challenges of public administration is the need to understand and evolve legacy systems for the purpose of documentation, improvement, modification, interoperability, porting, migrations, reuse, redesign and/or redeployment. There is a need for standardization in legacy transformation that will enable integration and interoperability between different solutions. The OMG has issued a request soliciting proposals for a metamodel to capture knowledge from legacy systems (referred to as the Legacy Knowledge). In this paper we examine how a MOF-based repository can support the definition, modeling, exchanging and integration of metamodels created for legacy knowledge discovery.

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Transformation of relational schemas to object-oriented schemas

Proceedings Nineteenth Annual International Computer Software and Applications Conference (COMPSAC'95), 1995

We present an algorithm that transforms schemas of relational databases to schemas of object-orie... more We present an algorithm that transforms schemas of relational databases to schemas of object-oriented databases (OODB). This algorithm has the following special features: (1) it transforms schemas between two commercial database systems, i.e., from Sybase relational schemas to O2 OODB schemas; (2) it initiates limited interactive sessions between the schema transformer and its user when additional input to the schema transformer is necessary although most of the transformation is automated; and (3) the transformed schemas are typical OODB schemas that may contain class hierarchies, composition hierarchies, set attributes and subtuple constructs

SBVR based Business Contract and Business Rule IDE

We propose an IDE-Integrated Development Environment to model SBVR (Semantic of Business Vocabula... more We propose an IDE-Integrated Development Environment to model SBVR (Semantic of Business Vocabulary and Business Rule) compliant business rules [2] extracted from business contract of services and store them in an ontological structure of rules, facts and terms as defined in the SBVR metamodel. Business rules are based on principles of deontic logic for treating expressions in the form of normative policies. Deontic constraints express what parties to the contract are required to perform (obligations), what they are allowed to do (permissions), or what they are not allowed to do (prohibitions).

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Using Metamodels to Promote Data Integration in an E-Government Application Scenario

IFIP International Federation for Information Processing, 2004

The increasing popularization of Internet has created unprecedented expectations and promises whe... more The increasing popularization of Internet has created unprecedented expectations and promises when dealing with a more intelligent use of the available data. This use is based on metadata and on a new dimension of metadata modeling techniques. An initiative supported by OMG culminated in the current MOF-Meta-Object Facility specification, which is an open standard with facilities to definition and manipulation of metadata and metamodel. This paper describes a metadata management system that is based on the MOF specification and presents one usage of this system in an egovernment scenario.

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