Communications of the ACM
Rationale for the design of the Ada programming language
ACM SIGPLAN Notices - Rationale for the deisgn of the Ada programming language
Machine-independent computer programming
Machine-independent computer programming
DISSECT A Symbolic Evaluation and Program Testing System
IEEE Transactions on Software Engineering
Language design and analyzability: a retrospective
Software—Practice & Experience
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Most evaluations of software tools and methodologies could be called ''public relations,'' because they are subjective arguments given by proponents. The need for markedly increased productivity in software development is now forcing better evaluation criteria to be used. Software engineering must begin to live up to its second name by finding quantitative measures of quality. This paper suggests some evaluation criteria that are probably too difficult to carry out, criteria that may always remain subjective. It argues that these are so important that we should keep them in mind as a balance to the hard data we can obtain and should seek to learn more about them despite the difficulty of doing so. A historical example is presented as illustration of the necessity of retaining subjective criteria. High-level languages and their compilers today enjoy almost universal acceptance. It will be argued that the value of this tool has never been precisely evaluated, and if narrow measures had been applied at its inception, it would have been found wanting. This historical lesson is then applied to the problem of evaluating a novel specification and testing tool under development at the University of Maryland.