Significant progress has been made inthe effort to separateprogrammers fromthe management of data storage. By comparison,the window of a workstation is still managedand controlled in greatdetail by the typicalprogramm...
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Significant progress has been made inthe effort to separateprogrammers fromthe management of data storage. By comparison,the window of a workstation is still managedand controlled in greatdetail by the typicalprogrammer. In AD/Cyclemuser interface ser- vices define a set of servicesthat assist in the man- agement of the displayson the workstation. These ser- vices also help increasethe productivity of the tool builder by entorcing Common User Access rules and guidelines, and raisethe level of consistencyof user displaysof the tools inAD/Cycle.
IBM"s Repository Manager" enables specifications in- volved inthe program application development proc- ess to be *** the basis of the technology, the Repository ManagerfMVS" was developed as a product....
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IBM"s Repository Manager" enables specifications in- volved inthe program application development proc- ess to be *** the basis of the technology, the Repository ManagerfMVS" was developed as a product. The primary concepts and services the of technology are introduced,and specificaspects of the product and its operation are discussed.A discussion of what is involvedin designing and implementing a tool is also included.
Quality is probably one of the most serious concerns of today"s software *** software applica- tions exhibiting a certain complexity, the quality of a product can only be guaranteed by a methodological approach, ...
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Quality is probably one of the most serious concerns of today"s software *** software applica- tions exhibiting a certain complexity, the quality of a product can only be guaranteed by a methodological approach, using appropriate administration and tools. The methodology andadministration must be mani- fested in a well-definedand well-observedapplication development *** must integrate the human activity, the tools, and the intermediateand final work products into a coherent flow of actions. In this regard, the developmentof applications follows patterns that are well establishedin other industries wherean application development (AD)process model is defined andthen executed via an interpretation mechanism. Thecomplexity of the developmentproc- ess makesit necessary tosupport and integrate all of its aspects by means ofon-lineinteractive computer support. Computer-aidedprocess support in the gen- eral sense we call work management. This paper ex- plains the concepts of an application development process model andof work management forapplica- tion development underADlCycIe- and its relation to project management.
B3-splines are introduced in this paper with explicit expressions. The new splines are extensions of the B-spline but overcome the latter's weakness of not passing through interpolation points for curve or surface...
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B3-splines are introduced in this paper with explicit expressions. The new splines are extensions of the B-spline but overcome the latter's weakness of not passing through interpolation points for curve or surface fitting. Between consecutive control points, three cubic functions are used. Computation is simple with data from prestored tables. No trial-and-error steps in selecting control points are necessary in order to create smooth interpolation. With other good properties, such as C 2 -continuity and localization, the new splines can be implemented very well for interactive curve and surface fitting in computer-aided design (CAD). This paper describes the exact cubic expressions and their derivations. Their advantages over B-spline and Bézier spline for interactive applications are discussed.
Robot applications, represented as plans, are used to outline a viewpoint that robustness needs to be emphasized in two areas: in the plan representation and in the underlying system software. Robot applications are i...
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ISBN:
(纸本)0818620811
Robot applications, represented as plans, are used to outline a viewpoint that robustness needs to be emphasized in two areas: in the plan representation and in the underlying system software. Robot applications are inherently distributed, since the hardware usually comprises a set of independent actuators and sensors, with the robot programs acting as links between them. A special model of distributed computation, the RS (Robot Schemas) model, has been designed to handle the issues of robot plan representation, and an overview of the model is presented. An initial implementation of the model with minimal execution support demonstrated that the domain-dependent aspect of robustness on its own was not sufficient for robust behavior. Consequently, the OS has been augmented with real-time scheduling, and monitoring facilities.< >
The construction of real-time software for autonomous robot systems that can operate in an uncertain and dynamic environment is considered. Techniques for representing robust robot plans using the RS (robot schema) mo...
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The construction of real-time software for autonomous robot systems that can operate in an uncertain and dynamic environment is considered. Techniques for representing robust robot plans using the RS (robot schema) model are developed which make it possible to separate planned decision-making from error monitoring; they give a modular way to embed error detection, diagnosis, and recovery into plans, and via the formal tools of RS they allow one to analyze plans for error behavior. However, experience in implementing the RS kernel leads to the conclusion that robustness in the plan representation alone is not sufficient. Robustness must also be incorporated in the underlying system software to complement robustness in the plan representation model. Experiences with the initial implementation of the RS execution environment kernel also emphasized the need for operating system constructs that would support the robustness inherent in the model.< >
The BOC Group Inc. is the second largest gases company in the world, having a 1988 turnover in excess of/2.500M. The UK contribution to this figure was BOOM, from products as diverse as industrial, medical and commerc...
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Recent developments in the theory of artificial intelligence and the advent of the expert systems made it possible to actually produce intelligent systems for computer-aided learning (CAL). A major component of such a...
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作者：
CHICKERING, JEQUALLS, WBJohn E. Chickering:is a systems analyst with American Management Systems
Inc. in Arlington Virginia. Mr. Chickering received his BS degree in marine engineering from the U.S. Merchant Marine Academy in Kings Point New York in 1981 and his MBA degree in operations research and statistics from the University of Maryland in 1985. He is a licensed third assistant engineer of steam and motor vessels and a member of the Naval Reserve. Mr. Chickering's work includes the design and specification of several management information systems for the U.S. Navy including one that will automate the Navy's engineering drawing management system. Most recently Mr. Chickering has helped develop a workstation for the Navy's Paperless Ship Initiative. William B. Quails:is a management consultant with American Management Systems
Inc. in Arlington Virginia. Mr. Quails received his BA degree in English from the Tulane University in New Orleans Louisiana in 1977 and his MPA degree in management science from the University of Georgia in 1982. Mr. Quails participated in the design and development of the U.S. Navy's Shipboard Non-tactical ADP Program II (SNAP II). Recently Mr. Quails has participated in the design and development of several knowledge-based computer systems using artificial intelligence programming technologies. Mr. Quails is a member of Pi Alpha Alpha an honorary public affairs and administration society.
The U.S. Navy relies heavily on advanced technology to carry out its missions. As a consequence, today's sailors are spending increasing amounts of time maintaining and repairing complex systems and equipment. In ...
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The U.S. Navy relies heavily on advanced technology to carry out its missions. As a consequence, today's sailors are spending increasing amounts of time maintaining and repairing complex systems and equipment. In performing these duties, sailors depend on supporting technical documentation. As the complexity of systems and equipment grow, the volume and complexity of this technical documentation also increases. As a result, technical information, one of the Navy's critical resources, is simultaneously becoming more vital and more difficult to use. The Navy is meeting this challenge by exploring innovative approaches to the management of technical documentation. One example is the Paperless Ship Initiative, which employs optical disk technology as the primary means for document storage. Optical disks can store large volumes of technical information in a small space. One way to take advantage of this auto mated access is to make technical information more readily accessible and easier to use. As an example, a technical manual can be organized on an optical disk into discrete segments of text and indexed for fast retrieval by section, subsection, or paragraph. Furthermore, mechanisms can be developed which allow computer-supported links between logically related segments of the text. This style of interface allows a user to interact directly with the textual passages and to establish new organizational and referential links between them. This style of interface falls under the general category of hypertext (also known as linked text ). The combination of optical disk storage and hypertext offers new possibilities for improving access to large volumes of technical documentation while maintaining all of the advantages of traditional paper-based documentation. This paper begins with a discussion of the need for better technical documentation support. Alternatives that can fulfill this need are reviewed and the role of hypertext is described. The paper illustrates a sample
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