A worked BU 442 Unit 4 network diagram and critical path: dependencies justified, forward and backward passes run, total and free float reported, and the driving path identified. Searches like "bu 442 unit 4 assignment example", "bu442 unit 4 sample" and "bu 442 unit 4 example" land here.
What a finished BU 442 Unit 4 network diagram and critical path looks like
The deliverable is a diagram, a table of computed dates and an argument about float. Nodes carry the element identifiers from the breakdown rather than new names, and each arrow between them has a line in a dependency register saying what kind of relationship it is and why it exists, whether that is a physical necessity, a resource that cannot be in two places, or a decision somebody made that could be revisited. The date table gives early start, early finish, late start and late finish for every element, then total float and free float as separate columns. The critical path is stated as the sequence with zero total float and drawn distinctly. A closing section examines near-critical paths, since a chain with a small amount of float is the one that becomes critical first.
How a BU 442 Unit 4 example is structured
Dependencies are registered with reasons before any dates are computed, because a network is only as trustworthy as its arrows and a diagram drawn from habit produces a critical path that means nothing. Relationships are classified by why they exist, which separates the ones that cannot be changed from the ones that were chosen and could be renegotiated if the finish date became a problem. The forward pass is shown before the backward pass and both are shown rather than summarized, since the arithmetic is what the criterion checks. Total and free float are reported separately because they answer different questions: how much an element can slip before the project moves, and how much before the next element moves. The path is identified from the computed float rather than by eye. Near-critical chains close the document, as they are what a control discipline watches next.
Every dependency carries a stated reason
The register says why each arrow exists, which separates relationships that cannot move from ones somebody chose and could revisit.
Both passes shown, not summarized
Forward and backward calculations appear in full because the arithmetic is the part a marker can check against the diagram.
Total float and free float separated
One says how far an element can slip before the project moves, the other before the next element does.
The path computed, not eyeballed
The critical sequence is read off the float column rather than picked as the longest looking chain on the drawing.
Near-critical chains examined at the end
Paths carrying only a little float get their own section, since those are the ones that become critical first.
Where marks go in BU 442 Unit 4
Networks lose credit when the diagram and the arithmetic disagree. A picture drawn first and dates fitted to it afterward produces float figures that cannot be reproduced, and a marker recomputing one chain will find it. Dependencies drawn because the elements appear in that order on the breakdown are sequence by convention, not logic. Finish-to-start used everywhere flattens work that genuinely overlaps and lengthens the computed duration. Float reported as a single column hides which kind was meant. Critical paths chosen because the chain looks longest are wrong whenever a parallel branch carries more duration. Diagrams with no element identifiers cannot be tied back to anything. Lags inserted with no reason are padding. A live schedule exported from an employer's planning tool carries that company's commitments with it.
Get a BU 442 Unit 4 example written to your instructions
We work from the Unit 4 instructions, the BU 442 rubric in your classroom, the breakdown and durations the assignment builds on, and any software your section requires. We write a custom example that registers each dependency with a reason, shows both passes in full, separates the two floats and closes on the near-critical chains. First custom sample free, returned in 24 to 48 hours.
BU 442 Unit 4 questions, answered
Does the diagram have to be drawn by hand?
Check the instructions, since some sections want the network drawn and others accept output from scheduling software. Where a tool produces the dates, show the calculation for at least one chain anyway, because a printout proves the software ran and not that you can compute float. Where you draw it yourself, keep the node layout readable rather than compressing everything onto one line.
What if more than one path has zero float?
Then the project has two critical paths and saying so is the right answer rather than a problem to hide. Report both, note that either one slipping moves the finish, and point out that the schedule is more fragile than a single path would be. Assignments often build this in deliberately, and drafts that pick one chain and ignore the other lose the observation.
How much explanation do the dependencies need?
A line each is usually enough, and the line has to say why rather than what. Recording that testing follows build states the arrow again; recording that testing needs a working version to run against explains it. Where a relationship exists only because of how you chose to staff the work, say so, since those are the ones that can be renegotiated when the finish date gets tight.