Jacky, J.P. and Kalet, I.J., "An Object-Oriented Programming Discipline for Standard Pascal," Communications of the ACM 30,9, pp. 772--776, September, 1987.  Home/Search   Document Not in Database   Summary   ACM   TOC   Related Articles   Check

....which requirements were fixed prior to initiation of contact with the mediator method. In this case, Ira Kalet a researcher in the University of Washington Radiation Oncology Department and an accomplished designer of radiation treatment planning systems [Kalet and Jacky 82, Jacky and Kalet 86, Jacky and Kalet 87b] had written requirements for a third generation, integrated treatment planning system. This system was to be more flexible and tightly integrated than any such system previously built. Kalet saw that common design methods would lead to an artifact far too complex and costly to be built on the ....

....in the scope of tasks it supports, tightly integrated, and flexibly configurable both at runtime and over the longer, evolutionary term. 7. 3 Prior Art Many RTP systems have been built, including several at the University of Washington [Kalet and Jacky 82, Goitein et al. 83, Jacky and Kalet 86, Jacky and Kalet 87b, Fraass et al. 87, Kutcher 88, Rosenman et al. 89] The problem is that these efforts did not achieve the critical combination of breadth of scope, tight integration, and flexibility. This is not surprising in light of the observation of Taylor et al. a well integrated environment is ....

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Jacky, J.P. and Kalet, I.J., "An Object-Oriented Programming Discipline for Standard Pascal," Communications of the ACM 30,9, pp. 772--776, September, 1987.

....changes, all graphical renderings displayed by any tool should be updated accordingly, for example. 2. 2 Related Systems Many RTP systems have been built [Goitein et al. 83, Kutcher 88, Fraass et al. 87, Rosenman et al. 89] including several at the University of Washington [Kalet and Jacky 82, Jacky and Kalet 87b] None of these efforts achieved breadth of scope, integration and flexibility. This is not surprising, in light of Taylor et al. a well integrated environment is easiest to achieve if the environment is limited in scope and static in its contents and organization. Conversely, broad and ....

....limitations make it hard quickly model and simulate patients and treatment plans. Third, to the extent that existing systems are broad and integrated, their architectures tend to be inflexible and evolution unfriendly. For example, despite its object oriented architecture [Jacky and Kalet 86, Jacky and Kalet 87b] Kalet s second system does not easily accommodate integration of prototype AI based planning tools [Kalet 92c, Paluszynski 89a] Architectural inflexibility inhibits both research on uses of software in radiation treatment planning and also exploitation of research results by making it hard to ....

Jacky, J.P. and Kalet, I.J., "An Object-Oriented Programming Discipline for Standard Pascal," Communications of the ACM 30,9, pp. 772--776, September, 1987.

....plans and radiation fields, and for managing databases of patients, treatment machines, etc. 4. 1 Related Systems While many RTP systems have been built [Goitein et al. 83, Kutcher 88, Fraass et al. 87, Rosenman et al. 89] including several at the University of Washington [Kalet and Jacky 82, Jacky and Kalet 87b] none before Prism combined the rich functioning, tight integration, and adaptability Kalet saw as necessary for a highly effective treatment planning capability. Previous systems (including Kalet s) exhibited a number of shortcomings. In many systems, different planning tasks are handled by ....

....tools, execute the dose computation program, and then restart the dose display program. The awkwardness of such systems increases the cost and diminishes the quality of treatment plans. Second, the interfaces of earlier systems were inflexible. One uses Kalet s second system [Jacky and Kalet 86, Jacky and Kalet 87b] by constantly traversing a broad and deep menu tree to change plans, anatomical models, visualization parameters, etc. The visualization system is also inflexible, displaying a fixed set of views in a fixed screen layout. These restrictions slow the definition and evaluation of treatment plans. ....

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Jacky, J.P. and Kalet, I.J., "An Object-Oriented Programming Discipline for Standard Pascal," Communications of the ACM 30,9, pp. 772--776, September, 1987.

.... is difficult to eliminate or minimize the so called ripple effect 3 ; 3) the difference in point of view between following data flows in structured analysis and building hierarchies of tasks in structured design has always been a major problem [5] 14] 4) the tight 1 Jackson s JSD approach [13] is also considered a data oriented or, more precisely, data structure oriented approach. 2 A data dictionary is a document that contains detailed information about each component in a DFD specification. Gane and Sarson [9] provides an excellent presentation of a data dictionary. 3 ....

....Reading, Mass: Addison Wesley, 1983. 11] A. Goldberg, Smalltalk 80: The Interactive Programming Environment, Reading, Mass: Addison Wesley, 1984. 12] R. Hull and R. King, Semantic data modeling: survey, applications, and research issues, ACM Comput. Surv. 19(3) 201 260, 1987) [13] M. A. Jackson, System Development, Prentice Hall, 1983. 14] T. Korson and J. D. McGregor, Understanding object oriented: a unifying paradigm, CACM Vol. 33, No. 9, pp. 40 60, Sept. 1990. 15] C. Kung, Conceptual modeling in the context of software development, IEEE Trans. on Software ....

J. P. Jacky and I. J. Kalet, "An object-oriented programming discipline for standard Pascal," CACM 30, 9 (Sept. 1987), 772 - 776.

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