This chapter discusses the rationale of the study, presents the research questions, and defines the scope of the project. Rationale Just as there are many VR systems in existence today, there are many interaction methods as well. These interaction methods are preformed through a variety of devices. Each device has a number of different uses that are related to the physical characteristics of the interaction system. A wand is good for selecting and pointing.
Display resolution can also limit the effectiveness of an interaction method.
An interaction method includes more than the physical design of the device. The user must understand both aspects to interact effectively. Users are often confused as to which operation they are performing at a given time. This confusion can lead to mistakes or incorrect decision-making. While the virtual environment might indicate that the user has performed an invalid operation, it is better to prevent mistakes by letting the user know which operations they are allowed to perform.