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Choose the correct answer.
Given the following diagram fragment:
Which criterion indicates that a decision node construct such as this is well-formed?
Suggested Answer: D
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38 comments · newest first
TR
Truman
10 months ago
Not sure about B, what if the guards aren't truly exclusive?
HE
Helaine
11 months ago
C is important, but I agree with B being the best answer.
MA
Makeda
11 months ago
Surprised that D is even an option, it seems too vague!
KR
Kristel
11 months ago
I think A makes sense too, but B feels more complete.
MA
Maira
11 months ago
B is definitely the right choice.
BR
Brandon
12 months ago
Option D seems like it could be relevant, but I’m not sure if understandability is a formal criterion for well-formed decision nodes.
LA
Lawrence
12 months ago
I’m leaning towards option A, but I’m not confident. I feel like I’ve seen something similar in our study materials.
DO
Dorothy
12 months ago
I remember practicing a question about guard conditions, and I feel like option C might be important too, but I can't recall the specifics.
GE
Gerald
1 year ago
I think option B sounds familiar because it relates to how decision nodes should be structured, but I'm not entirely sure if it's the only criterion.
LE
Lenna
1 year ago
I feel pretty confident about this one. The correct answer is B - the guards need to cover all possibilities and be mutually exclusive.
TA
Tammara
1 year ago
I'm a bit confused by the wording of these options. I'll need to re-read the question and think through each choice carefully.
AL
Alba
1 year ago
Okay, I got this. The guards can't negate the corresponding activities, and they have to be evaluable without changing the state. That's the way to go.
TE
Tegan
1 year ago
Hmm, the guards need to cover all possibilities and be mutually exclusive, right? I think that's the key to this one.
EL
Elizabeth
1 year ago
This looks like a tricky question. I'll need to carefully review the diagram and the answer choices to make sure I understand the criteria for a well-formed decision node.
LO
Loren
1 year ago
Ah, the age-old question: are the guards mutually exclusive, or is the developer just a mutual exclusion?
AL
Alberta
1 year ago
D) The guards are understandable by stakeholders in the development effort.
RE
Rebecka
1 year ago
C) Each guard legal can be evaluated without changing the state of any item referenced by the corresponding activity or action Ai
ST
Staci
1 year ago
B) Taken together, the guards cover all possibilities and are mutually exclusive.
VI
Vivienne
1 year ago
A) No activity Ai will negate the corresponding guard [gi]
AN
Anika
1 year ago
I don't know, guys. What if the guards are written in Klingon? Shouldn't that be an option too?
NA
Narcisa
1 year ago
C) Each guard legal can be evaluated without changing the state of any item referenced by the corresponding activity or action Ai
OR
Ora
1 year ago
B) Taken together, the guards cover all possibilities and are mutually exclusive.
JO
Joni
1 year ago
A) No activity Ai will negate the corresponding guard [gi]
JA
Jannette
1 year ago
Understandable by stakeholders? Pfft, have you met some of the stakeholders I've worked with? I'm sticking with B.
FR
Freeman
1 year ago
User 3: B it is then, let's go with the safe choice.
AL
Alana
1 year ago
User 2: Yeah, stakeholders can be a handful sometimes.
BA
Barney
1 year ago
User 1: I agree, B seems like the safest option.
CH
Charlena
1 year ago
Hold up, are we sure the guards are even supposed to be readable? I'm going with C, keeping that state intact is the real priority.
GR
Gracia
1 year ago
I see your point, but I still think C is the best option for maintaining the state.
WI
Willodean
1 year ago
But what about D? Shouldn't the guards be understandable by stakeholders?
AL
Alaine
1 year ago
I disagree, I believe C is the right choice to ensure the state remains unchanged.
RA
Raina
1 year ago
I think B is the correct answer, the guards need to cover all possibilities.
NO
Noel
1 year ago
Option B seems like the obvious choice here. The guards need to cover all possible scenarios without any overlaps.
RO
Rosina
1 year ago
Yes, option B is the best choice. It ensures that the decision node is well-formed.
NE
Nell
1 year ago
I agree, option B is the correct choice. The guards must cover all possibilities.
ZO
Zona
1 year ago
I'm not sure, but I think C could also be a valid option.
TA
Tabetha
2 years ago
I agree with Eden, because the guards need to cover all possibilities.
ED
Eden
2 years ago
I think the correct answer is B.