Fig. 1
Interviews conducted
| Affiliation | Interviewee | Interview technique and duration |
|---|---|---|
| Contractor 1 (case project) | Project engineer1 | Face to face, 45 min |
| Contractor 1 (case project) | Site manager 1 | Face to face, 45 min |
| Contractor 1 (case project) | Project manager 1 | |
| Contractor 1 (case project) | Carpenter 1 and plumber 1 | Group interview 40 min |
| Contractor 2 | Site manager 2 | Phone interview, 40 min |
| Contractor 3 | Site manager 3 | Skype/telephone, 40 min |
| Contractor 3 | Trainee 3 | Skype/webcam, 40 min |
| Contractor 4 | Project manager 4 |
Follow-up interviews conducted
| Affiliation | Interviewee | Interview technique and duration |
|---|---|---|
| Contractor 1 (case project) | Project engineer 1 | E-mail, phone interview |
| Contractor 2 | Business developer 2 | E-mail, phone interview |
| Contractor 3 | Site manager 3 | |
| Contractor 4 | Chief operating officer 4 |
Summary of results (right column) in relation to TAM items (Davis 1989) (left column)
| Perceived usefulness – TAM | Perceived usefulness – results |
| Works more quickly | Does the job quicker |
| Job performance | Increases productivity and efficiency |
| Increases productivity and efficiency | Improves flow of communication |
| Makes job easier | Makes job easier |
| Perceived ease of use – TAM | Perceived ease of use – results |
| Easy to learn, clear, and understandable | Easy to learn |
| Easy to become skillful | Impact of experience/age difference |
| Easy to use | Easy to use |
| Behavioral intention to use – TAM | Behavioral intention to use – results |
| Results from perceived usefulness and ease of use | Results from perceived usefulness and ease of use |
| Actual system use – TAM | Actual system use – results |
| Results from intention to use | Use of a comparable system resulted from intention to use |