id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_geahfhvb5rfztb2f4bdpjuhmyu	Michael Jackson	Problem frames and software engineering	2008	16	.pdf	application/pdf	8303	471	50	Problem Frames and Software Engineering A general account is given of the problem frames approach to the development of problem frames approach (which we will refer to as 'PF') to software development, and to The machine interacts with the problem world at an interface of shared phenomena a. predicate or condition on the problem world that the machine is required to bring about. denotes references by the requirement to physical phenomena b of the problem world. in software engineering on the machine rather than the problem world. context of the problem worlds that provide their purpose, play the role that Vincenti's wellunderstood devices play in the established engineering branches. Each subproblem has its own machine, its own problem world, and its own Composition concerns arise when subproblems have parts of their problem worlds in object of normal design by defining specialised composite elementary problem frames. Relating Software Requirements and Architectures Using Problem Frames; Proceedings of	./cache/work_geahfhvb5rfztb2f4bdpjuhmyu.pdf	./txt/work_geahfhvb5rfztb2f4bdpjuhmyu.txt