Table 2.

Most useful features, added value, and features to add.

Theme		Sample quotes
Most useful features
	Photo and wound documentation (n=16)		“So that was what we were searching for. A product which is possible to make good photo documentation and the option that it can connect to the system here in the hospital and so we have the picture in the medical file of the patient. And this is the main feature why we use imito because it was the first system that makes it possible in a fast way” [Ca11]
	Electronic medical record integration (n=13)		“By scanning the name of the patient or his patient identification number, the document is linked to the hospital information system and the photos are stored in the patient file” [C18]
	Patient progress management (n=9)		“very good visibility of the development of each individual case” [Pb6] “So, it’s easier to follow the progress of healing” [Ic12] “Current photos can be immediately compared with older recordings so one can assess the progress of wound healing” [C18]
	Wound measurement (n=7)		“And one further, very good benefit...you can place QR codes in the photo. They are like sticky notes, and you can place it on the screen next to it, and this is referencing it in terms of size. So...you can measure width, length, and even the surface area of a wound. You can decide if a certain area is becoming smaller or larger or whatever” [C5]
	Second opinion (n=7)		“Networking with other authorized users is the next step and enables interdisciplinary communication” [C18]
	Categorization and classification (n=7)		“And before you upload a choice of videos or photos, you are asked to tag your photos by selecting a body region from an illustrated human. And furthermore, you can add hashtags such as ‘burn wound’” [C5]
	Privacy and security (General Data Protection Regulation compliance; n=4)		“the only thing today is to send a picture...to other people to get second opinion is using WhatsApp... And it would make my life easier if we would have some good solutions which you are allowed to use, then we could forbid the rest” [I10]
Added value
	Saving time and efficacy (n=15)		“My expectation was to improve the documentation and make more photos per visit than before, and that certainly worked” [C16]
	Patient safety and quality of care (n=14)		“So, it’s an objective parameter, and you see it’s getting better. When it’s getting better, you continue. If you see it’s stagnant, it remains, or it gets bigger, this helps quickly to detect that your medical measures are not good. And then instead of treating the patients another four weeks or three months, you change. You take action and reflect and you change” [C3] “You can show the patient how his progress is going on and the picture can say more than a lot of words. It’s just useful for everyone who’s using it” [I12] “there’s also quality benefits that we can directly compare with the initial status” [C16]
	Security and validation (n=9)		“And after the upload, no data is left on the device itself, in the gallery, for example. So, this app sends the images to the hospital’s database and there it is as safe as the hospital database can be, and this is the really strong benefit” [C5] “So, it’s not any more than that you have patient pictures that are just flying around somewhere and have no names on it, and you can’t map them back to the patient, which was also a matter of patient security and safety” [I13]
	Accessibility and compact overview (n=6)		“It’s providing the relevant data at the right time and the right context” [P1] “Sometimes we need a dermatologist. And so, we can call them. And this is what we want for the whole hospital, that every station is using this for the documentation so that we can sit here in the front of my PC and have a look...So, I don’t have to run over there, make the picture, run back or get everything I have, for example, with me. And so, it makes it, for me, easier” [C11]
Features to add
	Patient interface (n=3)		“So as soon as the electronic health record comes about, then it should be possible to push all that information into the electronic health record of the patients. So, it will be more and more important to let the patient participate on that process” [I13]
	3-dimensional measurement (n=3)		“The depth of the wound could also be measured by imito. There was a system that had a laser. And with the laser, you had also the depth of the wound” [C3]
	Information export (n=2)		“And probably, also...the house doctor, and whoever can use the app as an information tool...we have to take the pictures, and then you have to put them in some order, and then you have to export it as a PDF or whatever. That would be great if that could also be mobile and flexible” [C14] “Once taken, the pictures are imprisoned in imito. You cannot send a GP an email with the photo...So, you are just losing time all the time. You can’t reuse the pictures from within imito mobile for presentations because we don’t get them out. Whereas respectively, you have to do screenshots. You have to cut the screenshots. You have to send via mail” [C3]
	Multitagging body parts (n=2)		“So right now, you can just choose one body part. And to choose two body parts, this would be an important thing, I think because sometimes we have injuries which are going—they are bigger or just going over different body parts” [I12]
	Search function of diagnosis (n=1)		“I’m missing, namely the long list of diagnoses...and a search function for the diagnosis” [C16]
	Better slow-motion video (n=1)		“it would be beneficial to have a better slow-motion feature in the videos. And I know tools for coaches, for example, golf coaches, and what they can do is while playing in slow motion, they can stop and then they can measure angles, for example” [C5]
	Better connection with radiology devices (n=1)		“we would like to also allow a better connection between those radiological devices...and providing them safe and secure authentication of patients” [CP8]

^aC: clinician.

^bP: provider.

^cI: informatics.