	69	modeling
	56	model
	54	collaborative
	53	models
	47	software
	46	process
	43	development
	42	design
	41	approach
	32	paper
	31	tools
	29	collaboration
	27	tool
	23	engineering
	23	systems
	21	work
	21	can
	18	system
	18	also
	17	propose
	16	study
	15	However
	15	use
	14	present
	14	used
	14	new
	14	MDE
	14	may
	13	existing
	13	method
	13	team
	12	user
	12	application
	11	processes
	11	diagrams
	11	MDSE
	11	time
	11	challenges
	11	techniques
	11	collaboratively
	11	model-driven
	11	large
	10	approaches
	10	developed
	10	research
	10	Modeling
	10	using
	10	users
	9	Engineering
	9	important
	9	provide
	8	help
	8	will
	8	main
	7	model-based
	6	modelling
	6	Model-Driven
