Approved for public release, distribution unlimited / The maintenance of large military software systems is complex, involves users as well as software professionals, and requires appropriate management, which is one of the most important factors in efficient maintenance. Maintenance management requires information about the current state of the maintenance process that should be organized within a maintenance-oriented Enginering Database. This database should include all the necessary data about software changes, system configeration, maintenance task scheduling, etc., and it should be based on a realistic model of the maintenance process. This tesis proposes a mathematical Model of Software Maintenance that uses graphs to model the relationships between maintenance tasks and software components. The Model addresses the dynamic behavior of the maintenance process and supports priority and precedence of maintenance activities. The proposed Model of Software Maintenance provides a sound basis for implementation of a maintenance-oriented engineering database that supports automation of maintenance management, e.g., process control, task scheduling, job assignments, planning and forecast, gathering and interpretation of maintenance statistics and metrics, etc.

The first and most basic problem with documentation is that the consumer of software applications does not want to use the documentation included with a software product for one or more reasons. Studies, and papers, have been done on the effect that documentation has on a user's satisfaction with a software application; its ease of use, how quickly a user can learn to use the application, and on how documentation should be standardized. The premise of this thesis is that an improvement to the software maintenance processes can be achieved by limiting maintenance requests to "actual” problems with software, versus "perceived" problems caused by inadequate end-user documentation. After analyzing the literature within the computer science communities on the software maintenance process, and the literature within the educational and psychological communities on learning, retention, and the effect of software documentation on the end-user, a modification to the Foster Model was conceived. This model incorporates the concept of an Interactive Documentation Program (IDP), which allows for the end-user to utilize end-user directed and task-based documentation to improve their skills with the operation of commercially available off-the-shelf "office application" software as well as in-house developed software of a similar nature. To ascertain the viability of this concept, a world-wide survey of end-users is concerning their needs, desires, expectations, and complaints concerning end-user documentation was conducted. Combining the statistical results of the analysis of this survey with the concept of the IDP resulted in a new visuaUy-based and task oriented documentation paradigm called hypervideo.

Microclimates of various road weather stations in Devon were examined. Road surface temperatures were measured during various synoptic conditions. Data from the thermal mapping exercise conducted by Vaisala TMI were analysed and categorised as clear and calm, cloudy and windy, and a condition between the two extremes. Results indicate valleys to be relative cold spots in clear conditions, and high altitude stations are cold spots during cloudy conditions. A separate case study during the cold spell of February 1991 reinforced the conclusion and extended these views county wide. Coastal stations with surface winds were observed to be 1 to 3 deg.C warmer than inland stations. Reaction times, the delay in road temperature reaction due to synoptic change, showed for the most difficult forecasting scenario on the passage of a cold front, small reaction times (less than 30 minutes) at exposed sites when clear skies resulted, sheltered sites having a reaction time of up to 2 hours. Sheltered sites in valleys had the largest temperature drop due to cold air drainage. A surface climate model was used in retrospect to predict road surface temperatures at night, each station having its own characteristic exposure. Cloud change was estimated from satellite images. Results indicate predicted minimum temperature within 0.5 deg.C of observation. Real time forecasts were tried and an accuracy of 65% at this level was achieved. These results were equal or better than the existing "Open Road" forecasts.

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1988. / Vita. Abstract. Includes bibliographical references (leaves 80-82). Also available via the Internet.

Thesis (B.A.)--Haverford College, Dept. of Religion, 2007. / Includes bibliographical references.

Project report (M.S.)--Virginia Polytechnic Institute and State University, 1990. / Abstract. Includes bibliographical references (leaf 60). Also available via the Internet.

Thesis (Ph. D.)--Northeastern University, 2008. / Title from title page (viewed March 9, 2009) College of Computer and Information Science. Includes bibliographical references (p. 101-106).

Thesis (M.S. in Systems Engineering Management)--Naval Postgraduate School, September 2008. / Thesis Advisor(s): Osmundson, John "September 2008." Description based on title screen as viewed on November 4, 2008. Includes bibliographical references (p. 47-48). Also available in print.

Thesis PlanB (M.S.)--University of Wisconsin--Stout, 2008. / Includes bibliographical references.

Thesis (M.H.A.)--University of Michigan, 1957.