<p>The inability of current approaches to the delivery of building systems to manage change is the root cause of significant challenges facing the modern construction industry. These challenges are manifested in the volatile financial status of construction firms, the difficult communications environment and costly professional liability pitfalls facing the industry. Total Life-Cycle Construction (TLC) is a revised philosophical approach to the information communication system within the design, delivery and operation of complex building systems and facilities. TLC employs the life-cycle principles of Systems Engineering to resolve the organizational challenges which are placing the construction industry at a developmental crossroads. / Master of Science

Throughout the life cycle of a real-time, distributed computer system, numerous situations arise which require access to detailed system performance information. One important type of performance information is known as data coverage. Data coverage is the process whereby all ranges of values for a particular variable in a piece of software have been exercised. Data regarding variable values can be very useful in determining the correctness of program execution. This project investigated the design, cost and usefulness of adding a data coverage performance evaluation capability within an existing Navy weapon system. The target system used is a real-time, loosely coupled distributed computer system. Experiments were created by writing programs in a high level language and executing the programs on the target system. Several of the programs contained "seeded" errors. Experiments were monitored and data was collected by an existing performance evaluation system. The data was collected in a real-time, non-interfering manner and evaluated off-line. The off-line evaluation was accomplished by modifying an existing software package. The package did not include any capabilities for producing a data coverage report. Therefore, it was necessary to enhance the software package such that a data coverage report was created. A description of the investigation and the various factors used for the evaluation of a data coverage capability, the design proposal, and the cost analysis are included in this report. / Master of Science

A pulmonary rehabilitation program is developed. / Master of Science

<p>In order to ensure the successful demonstration that the Weather Message switching center Replacement (WMSCR) of the Federal Aviation Administration (FAA) can complete its primary mission of accepting and distributing various data formats in use today and those of future systems, including the expected message traffic, this study was initiated.</p> <p> This Test Data set Formulation will specify the various data formats, worst-case traffic load/size, and a distribution scenario for the WMSCR. From this Formulation, an actual Test Data Set can be constructed and used to test the WMSCR.</p> <p> A description of the WMSCR, its operational environment, current users, future users, various message formats and associated sizing requirements per interface are detailed within.</p> / Master of Engineering

Master of Engineering

Master of Science

<p>The primary purpose of this paper is to propose a future direction of investigation: a more formalized approach to developing systems engineering methodologies and tools to support the system engineer and other disciplines in effectively applying the systems engineering process. This approach is based on the concept of using design principles to achieve specified objectives. The achievement of these objectives is indicated by the presence of defined attributes within the developed system. A secondary purpose of this paper is to illustrate how the concept of objectives, principles, and attributes provides a means for promoting an increased understanding of the similarities and interrelationships between systems engineering and other disciplines, particularly software engineering. A direct consequence of this increased understanding is an improvement in the application of the systems engineering development process.</p> / Master of Engineering

<p>The Ocean Environment was explored to determine the effects of temperature, absorption and leakage on acoustic propagation. Having modeled the acoustic region, a cylindrical sonar is evaluated to determine its array gain as a function of frequency. The Detection Threshold is analyzed and its impact on signal detectability discussed in detail. utilizing the Passive Sonar Equation, the sonar's effectiveness is quantitatively measured as a function of frequency for a typical noise source. Correlation techniques, modeled on an IBM PC, are then introduced to improve the sonar's effectiveness.</p> / Master of Science

Master of Science

Master of Science