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Full-Text Articles in Physical Sciences and Mathematics
Object Interaction In A Parallel Object-Oriented Discrete-Event Simulation, Walter G. Trachsel
Object Interaction In A Parallel Object-Oriented Discrete-Event Simulation, Walter G. Trachsel
Theses and Dissertations
This thesis investigates object interaction issues involved in developing an object-oriented parallel discrete-event simulation and develops a simulation model that provides object interaction capabilities. The research covers issues in object representation, object interaction, object management. discrete-event simulation, and parallel simulation. There are three primary types of objects that the research discusses. The first type is a basic simulation object, whose size and behavior is insignificant compared to the size of the simulation as a whole. The second type is an aggregate object which consists of smaller component objects that interact and affect the performance of the larger object as a …
Objectsim - A Reusable Object Oriented Dis Visual Simulation, Mark I. Snyder
Objectsim - A Reusable Object Oriented Dis Visual Simulation, Mark I. Snyder
Theses and Dissertations
This research designed and implemented a reusable Distributed Interactive Simulation DIS visual simulation architecture for Silicon Graphics platforms. The goal was to research software architecture technologies and to create a design and implementation using these ideas. The architecture was designed using object oriented techniques to provide the ability to customize it via inheritance extension. The resulting design was implemented using C and applied to several DIS visual simulation projects in the Graphics Lab at AFIT. The architecture, named ObjectSim, was successful in its goal of providing a reusable core for the DIS visual simulation projects in the Graphics Lab at …
Graphical Tools For Situational Awareness Assistance For Large Battle Spaces, Brian B. Soltz
Graphical Tools For Situational Awareness Assistance For Large Battle Spaces, Brian B. Soltz
Theses and Dissertations
As virtual environments grow in complexity and size, users are increasingly challenged in assessing situations in large-scale virtual environment. This occurs because of the difficulty in determining where to focus attention and assimilating and assessing the information as it floods in. One technique for providing this type of assistance is to provide the user with a first-person, immersive, synthetic environment observation post, that permits unobtrusive observation of the environment without interfering with the activity in the environment. However, for large, complex synthetic environments, this type of support is not sufficient because the portrayal of raw, unanalyzed data in the virtual …
Object-Oriented Design And Implementation Of A Parallel Ada Simulation System, James T. Belford
Object-Oriented Design And Implementation Of A Parallel Ada Simulation System, James T. Belford
Theses and Dissertations
Simulations which model the behavior real world entities are often large and complex, and require frequent changes to the configuration. This research effort examines the benefits of using object-oriented techniques to develop a distributed simulation environment which supports modularity, modifiability, and portability. The components of the Parallel Discrete Event Simulation PDES environment are identified and modeled using the Rumbaugh modeling technique. From the model, a prototype implementation of a Parallel Ada Simulation Environment PASE is accomplished using Classic Ada. A system interface for the Intel ipsc2 Hypercube was developed to illustrate the concepts of modularity and portability. In addition, the …
On The Automation Of Object-Oriented Requirements Analysis, Nancy L. Crowley
On The Automation Of Object-Oriented Requirements Analysis, Nancy L. Crowley
Theses and Dissertations
The research investigated the possibility that an object-oriented requirements analysis (OORA) specification model can be represented in a computer system and used as a basis for the elicitation of the information necessary for the development of an object-oriented specification for a particular problem. The proof-of-concept system developed is called the OORA automated Knowledge System (OAKS). OAKS contains a generic domain model that is modified to satisfy a particular problem in the domain. The core of OAKS is a reusable domain model, which represents a domain of interest. The domain model is used as a basis for user changes that are …
Development Of A Visual System Interface To Support A Domain-Oriented Application Composition System, Timothy L. Weide
Development Of A Visual System Interface To Support A Domain-Oriented Application Composition System, Timothy L. Weide
Theses and Dissertations
This research designed and prototyped a visual system interface to generate, display, and modify domain-oriented application specifications. A visual system interface, called the Architect Visual System Interface (AVSI), supplements a text-based environment, called Architect, previously developed by two other students. Using canonical formal specifications of domain objects, Architect rapidly composes these specifications into a software application and executes a prototype of that application as a means to demonstrate its correctness before any programming language specific code is generated. This thesis investigates visual techniques for populating, manipulating, viewing, and composing these software application specifications within the formal object base scheme required …