Object-oriented design

About: Object-oriented design is a research topic. Over the lifetime, 5136 publications have been published within this topic receiving 144108 citations.

Method and system to maintain a hierarchy of instantiated application objects and to enable recovery from an applications failure

Abstract: A method of maintaining a hierarchy of application objects commences with the automatic detection of the exit of a process of a child application object in an unexpected manner. Responsive to the detected exit, a grandchild application object, launched by the child application object, is automatically terminated. An attempt is then made to restart the child application object. The outcome of the restart of the child application object is reported to a parent application object that launched the child application object.

The Microsoft Repository

Abstract: The Microsoft Repository is an object-oriented repository that ships as a component of Visual Basic (Version 5.0). It includes a set of ActiveX interfaces that a developer can use to define information models, and a repository engine that is the underlying storage mechanism for these information models. The repository engine sits on top of a SQL database system. The repository is designed to meet the persistent storage needs of software tools. Its two main technical goals are: . compatibility with Microsoft’s existing ActiveX object architecture consisting of the Component Object Model (COM) and Automation and that a developer can use to define information models, and a repository engine that is the underlying storage mechanism for these information ‘models. (Znformurion model is repository terminology for database schema [3].) The repository engine sits on top of either Microsoft SQL Server or Microsoft Jet (the database system in Microsoft Access) and supports both navigational access via the object-oriented interfaces and direct SQL access to the underlying store. In addition, the Repository includes a set of information models that cover the data sharing needs of software tools. . extensibility by customers and independent software vendors who need to tailor the repository by adding functionality to objects stored by the repository engine and extending information models provided by Microsoft and others. The two main technical goals of Microsoft Repository are 1. COMZActiveX Compatibility It should fit naturally into Microsoft’s existing object architecture, consisting of COM and Automation (now subsumed under ActiveX). Thus, the repository should use existing ActiveX interfaces and implementation technology wherever possible and minimize the number of new concepts that the large community of ActiveX users needs to learn. This paper explains how the Repository attains these goals by providing an object-oriented database (OODB) architecture based on Microsoft’s binary object model (COM) and type system of Visual Basic (Automation).

modAL: A modular active learning framework for Python.

Abstract: modAL is a modular active learning framework for Python, aimed to make active learning research and practice simpler. Its distinguishing features are (i) clear and modular object oriented design (ii) full compatibility with scikit-learn models and workflows. These features make fast prototyping and easy extensibility possible, aiding the development of real-life active learning pipelines and novel algorithms as well. modAL is fully open source, hosted on GitHub at this https URL. To assure code quality, extensive unit tests are provided and continuous integration is applied. In addition, a detailed documentation with several tutorials are also available for ease of use. The framework is available in PyPI and distributed under the MIT license.

An Adaptable Robot Vision System Performing Manipulation Actions With Flexible Objects

Abstract: This paper describes an adaptable system which is able to perform manipulation operations (such as Peg-in-Hole or Laying-Down actions) with flexible objects. As such objects easily change their shape significantly during the execution of an action, traditional strategies, e. g., for solve path-planning problems, are often not applicable. It is therefore required to integrate visual tracking and shape reconstruction with a physical modeling of the materials and their deformations as well as action learning techniques. All these different submodules have been integrated into a demonstration platform, operating in real-time. Simulations have been used to bootstrap the learning of optimal actions, which are subsequently improved through real-world executions. To achieve reproducible results, we demonstrate this for casted silicone test objects of regular shape. Note to Practitioners-The aim of this work was to facilitate the setup of robot-based automation of delicate handling of flexible objects consisting of a uniform material. As examples, we have considered how to optimally maneuver flexible objects through a hole without colliding and how to place flexible objects on a flat surface with minimal introduction of internal stresses in the object. Given the material properties of the object, we have demonstrated in these two applications how the system can be programmed with minimal requirements of human intervention. Rather than being an integrated system with the drawbacks in terms of lacking flexibility, our system should be viewed as a library of new technologies that have been proven to work in close to industrial conditions. As a rather basic, but necessary part, we provide a technology for determining the shape of the object when passing on, e. g., a conveyor belt prior to being handled. The main technologies applicable for the manipulated objects are: A method for real-time tracking of the flexible objects during manipulation, a method formodel-based offline prediction of the static deformation of grasped, flexible objects and, finally, a method for optimizing specific tasks based on both simulated and real-world executions.

A brief history of the object-oriented approach

Abstract: Unlike other fads, the object-oriented paradigm is here to stay. The road towards an object-oriented approach is described and several object-oriented programming languages are reviewed. Since the object-oriented paradigm promised to revolutionize software development, in the 1990s, demand for object-oriented software systems increased dramatically; consequently, several methodologies have been proposed to support software development based on that paradigm. Also presented are a survey and a classification scheme for object oriented methodologies.