Table 2.

Search strings.

ID	Search String	Studies Found	GC Found
1	Personas AND (usability OR user OR UCD OR “user-centered design” OR UX OR “user experience” OR HCI OR “interface design” OR “interaction design”) AND integrating AND (agile OR “agile development” OR “extreme programming” OR Scrum OR sprint OR “agile method” OR “agile software development” OR “agile process”)	4	0
2	Personas AND (usability OR user OR UCD OR “user-centered design” OR UX OR “user experience” OR HCI OR “interface design” OR “interaction design”) AND (agile OR “agile development” OR “extreme programming” OR Scrum OR sprint OR “agile method” OR “agile software development” OR “agile process”)	69	8
3	Personas AND (usability OR user OR UCD OR “user-centered design” OR UX OR “user experience” OR HCI OR “interface design” OR “interaction design”) AND (agile OR “agile development” OR “extreme programming” OR Scrum OR sprint OR “user stories” OR “agile method” OR “agile software development” OR “agile process”)	81	9