| Deriving design elements | Kim(1997) | Drawing picture/ Projective approach |
| Choi and Choi (2004) | Drawing picture |
| Ko(2007) | Drawing picture |
| Park and Park(2008) | Play behavior pictogram/ Needs chart |
| Kang(2018) | Drawing a picture/ Forest play activities chart/ Forest play spaces chart |
| Deriving design alternatives | Kim(1997) | Participatory design (using 3D model) |
| Park and Park (2008) | Playground type chart/ Drawing playground/ Simulation method (Making models & Satisfaction assessment chart per model, Preference model priority assessment chart) |