Scientific and Technical Aerospace Reports Volume 39 April 6, 2001

when they occur, and the timing of messages about those events between enterprises. The authors analyzed the process events
to uncover the data and messages flows among the processes.
NTIS
Circuit Boards; Printed Circuits; Computer Aided Design; Data Transfer (Computers); Manufacturing; Internets; Commerce
20010024030 Naval Postgraduate School, Monterey, CA USA
A Mail File Administration Tool for a Multilevel High Assurance LAN
Rossetti, Richard K.; Sep. 2000; 130p; In English
Report No.(s): AD-A384634; No Copyright; Avail: CASI; A07, Hardcopy; A02, Microfiche
Department of Defense official communications often require special protections to prevent accidental disclosure to unauthorized
personnel. A Multilevel High Assurance LAN provides a framework for secure electronic communications, and obviates
the need for multiple single level networks. A high assurance trusted computing base (TCB), allows untrusted commercial off-theshelf
(COTS) software, such as an Internet Message Access Protocol (IMAP) server, to run untrusted while access to the file system
is mediated by the TCB. Control of creation and deletion of hierarchical structured objects, such as those in the file system,
is based on the ability to write to the directory containing the object. For a mail server, this directory structure corresponds to a
mailbox hierarchy. The mailbox hierarchy must be designed to allow users to read, create, and send mail at multiple levels. The
purpose of this research is to develop a trusted process that automatically creates the mailbox hierarchy for any system user. A
Mail File Administration Tool for a Multilevel High Assurance LAN allows administrators to easily set up IMAP-compatible
mailboxes for each user. The tool assists in the management of the file structure and enables account administration for multiple
LAN users and group accounts at multiple security levels.
DTIC
Message Processing; Local Area Networks; Electronic Mail; Access Control; Computer Information Security
20010024044 Naval Postgraduate School, Software Engineering Automation Center, Monterey, CA USA
Engineering Automation for Reliable Software Interim Report, 1 Oct. 1999-30 Sep. 2000
Luqi,, Naval Postgraduate School, USA; Sep. 30, 2000; 308p; In English
Report No.(s): AD-A384685; NPS-SW-00-002; No Copyright; Avail: CASI; A03, Microfiche; A14, Hardcopy
The objective of our effort is to develop a scientific basis for producing reliable software that is also flexible and cost effective
for the DoD distributed software domain. This objective addresses the long term goals of increasing the quality of service provided
by complex systems while reducing development risks, costs, and time. Our work focuses on ”wrap and glue” technology based
on a domain specific distributed prototype model. The key to making the proposed approach reliable, flexible, and cost-effective
is the automatic generation of glue and wrappers based on a designer’s specification. The proposed ”wrap and glue” approach
allows system designers to concentrate on the difficult interoperability problems and defines solutions in terms of deeper and more
difficult interoperability issues, while freeing designers from implementation details. Specific research areas for the proposed
effort include technology enabling rapid prototyping, inference for design checking, automatic program generation, distributed
real-time scheduling, wrapper and glue technology, and reliability assessment and improvement. The proposed technology will
be integrated with past research results to enable a quantum leap forward in the state of the art for rapid prototyping.
DTIC
Software Engineering; Real Time Operation; Technology Assessment; Complex Systems; Software Development Tools
20010024738 NASA Kennedy Space Center, Cocoa Beach, FL USA
Smarter Software For Enhanced Vehicle Health Monitoring and Inter-Planetary Exploration
Larson, William E., NASA Kennedy Space Center, USA; Goodrich, Charles H., DYNACS Engineering Co., Inc., USA; [2001];
9p; In English; 38th Space Congress, 1-4 May 2000, Cape Canaveral, FL, USA; No Copyright; Avail: CASI; A02, Hardcopy; A01,
Microfiche
The existing philosophy for space mission control was born in the early days of the space program when technology did not
exist to put significant control responsibility onboard the spacecraft. NASA relied on a team of ground control experts to troubleshoot
systems when problems occurred. As computing capability improved, more responsibility was handed over to the systems
software. However, there is still a large contingent of both launch and flight controllers supporting each mission. New technology
can update this philosophy to increase mission assurance and reduce the cost of inter-planetary exploration. The advent of modelbased
diagnosis and intelligent planning software enables spacecraft to handle most routine problems automatically and allocate
resources in a flexible way to realize mission objectives. The manifests for recent missions include multiple subsystems and complex
experiments. Spacecraft must operate at longer distances from earth where communications delays make earthbound command
and control impractical. NASA’s Ames Research Center (ARC) has demonstrated the utility of onboard diagnosis and
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