AT & T Technical Journal. Sept-Oct, 1989, Vol. 68 Issue 5, p44, 12 p. chart (How prototyping approach compares to traditional systems development.)
Human Factors, Research and Development, Prototype, Product Development, Testing, Software Design, User Interface, Modeling, and AT&T Bell Laboratories Inc. -- Research
Human factors contributions to the design of user interfaces are likely to have the greatest impact at early design stages. Rapid prototyping therefore provides an important vehicle for incorporating quality and usability from the outset. Through realistic experience and interaction with the proposed user interface, users and user-interface designers can work together to detect and correct problems before a major development investment is made. The prototyping approach is especially powerful because it provides the opportunity for (1) early user feedback and performance data, (2) efficient, focused communication with users and developers, and (3) iterative design and test. In this paper we illustrate the prototyping and evaluating process with three examples of AT&T products and services. (Reprinted by permission of the publisher.)
Kowalski, Thaddeus J., Huang, Yean-Ming, and Diamantidis, Helen V.
AT & T Technical Journal. March-April, 1990, Vol. 69 Issue 2, p42, 10 p. table Terms and acronyms in this paper.
Research and Development, C Programming Language, Debugging/testing software, Prototype, and American Telephone and Telegraph Co. -- Research
We have developed an interactive C programming environment (cens) with integrated facilities to create, edit, browse, execute, and debug C programs. At the heart of cens is a C source-code interpreter, cin, that implements correct and complete C semantics; enables rapid prototyping; performs extensive error checks; facilitates incremental update; manages multiple software views; and provides a programmable command language. In this article, we discuss how a medium-sized software project, the switched access remote test system (SARTS), has benefited from using cin for debugging, software manufacturing, and rapid prototyping. Using SARTS as a case study, we also describe how the interactive environment catches errors and allows corrections 'on the fly,' thereby shortening the debug cycle by a factor of 500 percent. (Reprinted by permission of the publisher.)
AT & T Technical Journal. Jan-Feb, 1991, Vol. 70 Issue 1, p52, 12 p. chart A high-level view of ISHMAEL.
Proprietary Systems, Research and Development, Integrated Approach, Simulation, Computer-Aided Engineering, Computer-Aided Design, Functional Capabilities, System Design, System Development, and Lucent Technologies Inc. Bell Laboratories -- Research
The interactive ISHMAEL system-development environment provides a single, consistent graphical interface for the the specification, prototyping, system simulation, development and documentation of the software and hardware components of a complex digital system and their interactions. ISHMAEL is specifically targeted at the life-cycle support of systems wherein the software and hardware are closely coupled. Three central advantages of ISHMAEL are its ability to simultaneously evolve hardware and software, iterative simulation for evaluating design tradeoffs and alternatives and the usefulness of the graphical interface. Details of the features and functioning of ISHMAEL are discussed. The initial application of ISHMAEL was to the development of Logopolis, a prototype high-performance telecommunications and information-processing hardware/software system.