input: Text: Project Manager: Mm. Marketing: So, Project Manager: So, uh now <unk>vocalsound<unk> Marketing: Hi Christa. <unk>vocalsound<unk> Project Manager: it's the <unk>disfmarker<unk> <unk>vocalsound<unk> Hi Sammy. <unk>vocalsound<unk> It's the detail design meeting, so we're going <unk>disfmarker<unk> last meeting. So um, first uh Mark and Rama are going to present uh the prototype. Uh then uh Sammy will propose some uh crite cr criteria to evaluate this prototype. Then, w we <unk>disfmarker<unk> <unk>vocalsound<unk> User Interface: <unk>vocalsound<unk> <unk>vocalsound<unk> Yes. <unk>vocalsound<unk> Marketing: <unk>vocalsound<unk> Yes. <unk>vocalsound<unk> Project Manager: <unk>vocalsound<unk> And then we going to do some finance to see if uh it is uh feasible User Interface: And chocolate? <unk>vocalsound<unk> Project Manager: <unk>vocalsound<unk> and uh at the end we will we will um evaluate ourself as a team. <unk>vocalsound<unk> And that's all. Okay. So first, <unk>vocalsound<unk> let's uh see the prototype. Marketing: Mm. Industrial Designer: Yeah. Project Manager: <unk>vocalsound<unk> Industrial Designer: Uh, here we have our prototype model. Project Manager: Okay. And you have some slides then? User Interface: Mm-hmm. Industrial Designer: Yeah. Yeah, we have also some slides. Project Manager: <unk>gap<unk> Yeah. Mm. User Interface: Yes, and place some slides. Project Manager: Okay. Uh so in which uh <unk>disfmarker<unk> User Interface: Uh, participant three. <unk>vocalsound<unk> Prototype. Industrial Designer: In <unk>disfmarker<unk> Yeah. Project Manager: Mm okay
  Question: Why did the group decide to give two points on usefulness when doing product evaluation?
  Answer:
output: The basic mode of the product had only two directional buttons with which people could control the volume and change channels. Except for the two main functions, other functions were on the LCD screen and there was a jog dial controlling the cursor on the LCD screen. Therefore, the controller was very easy to use.