Visual Aids

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Do curso por University of California San Diego

Mastering the Software Engineering Interview

415 classificações

University of California San Diego

Mastering the Software Engineering Interview

415 classificações

Curso 4 de 5 em Specialization Programação Java: Design Orientado a Objetos de Estruturas de Dados

You’ve hit a major milestone as a computer scientist and are becoming a capable programmer. You now know how to solve problems, write algorithms, and analyze solutions; and you have a wealth of tools (like data structures) at your disposal. You may now be ready for an internship or (possibly) an entry-level software engineering job. But can you land the internship/job? It depends in part on how well you can solve new technical problems and communicate during interviews. How can you get better at this? Practice! With the support of Google’s recruiting and engineering teams we’ve provided tips, examples, and practice opportunities in this course that may help you with a number of tech companies. We’ll assist you to organize into teams to practice. Lastly, we’ll give you basic job search advice, and tips for succeeding once you’re on the job.

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Explaining what you've already done

This week, we’re going to focus on how to speak about your experiences working on projects and how to speak about the technical problems you’ve experienced and how you’ve solved those problems. We’ll introduce the STAR (Situation, Task, Action, Results) model for presenting your work, and discuss how to and how not to present the problem you worked on and the solution you developed. We’ll also discuss the communication skills that are critical to this task. It’s a fun week with lots of examples (both good and bad), which ends with an assignment where you will present your own work on video and submit this video for peer review.

Presenting Your Solution4:20

Common Pitfall: In the Weeds4:37

Common Pitfall: Chronology4:56

Visual Aids3:08

Conheça os instrutores

Mia Minnes
Assistant Teaching Professor
Computer Science and Engineering
Leo Porter
Assistant Teaching Professor
Computer Science and Engineering
Christine Alvarado
Associate Teaching Professor
Computer Science and Engineering

[MUSIC]

So the last thing we're going to look at in Presenting Your Solution

is not really a pitfall, but it's how to use visual aids appropriately.

So by the end of this video, you'll be able to identify and

employ some good visual aids in describing your solution.

Now visual aids are kind of a luxury.

It won't always be possible for you to use visual aids.

You might be in a situation where you're just talking to somebody face to face, and

you won't have any visual aids, and

you'll see yourself maybe gesturing in the air a lot.

But if you do have access to a whiteboard, then you should learn to use it so

that it helps your technical explanation, and

it helps the person that you're talking to understand exactly what you did.

So let's look back at some of the videos from this week and look at how Mia,

Leo, and I used visual aides in our presentations.

So let's say we have some streets that looks like this, there's a street here.

And maybe there's a curvy street right there, and

another street running here, maybe another street running there.

And the goal for the learners is that they want to find intersections in this map, or

take intersections in this map, and then plot directions from one point to another.

So basically, what they need to work with is these intersection points and

connections between them.

But this map data, as you can probably imagine, is real world and

it's extremely complex.

So there's lot more than just these intersection points in this data.

In fact, in addition to these intersection points,

you actually get all these other little points, along each of these lines.

So you've got all these yellow points here, and

ditto for all the other lines here.

>> So those dots trace the shape of the road.

>> Exactly.

So these dots are necessary so that we can trace the shape of the road.

>> So, let's say you've got some program,

let's say I've got program A, And I want to run it.

Well, I'm going to run it on, likely on a processor.

>> Okay.

>> Now in the old days, and by old days, I mean like, 2004 [LAUGH].

>> [LAUGH] >> You'd only have one choice when

you ran the program.

It could only run on the chip, because the chip could only run one program at a time.

>> Okay.

>> But after 2004, we started getting multi-core processors.

>> Okay. >> And have you heard about those before?

>> Yeah, all the laptops these days have quad core, all these other.

>> Exactly, that's exactly what it is.

So you've more than one core on a single processor.

And so what you have here is,

got your four cores here, and now you have choices.

>> So you saw some examples, and

again I want to go back to the notion that these didn't come automatically.

It's not like we just stood up there and automatically drew these nice diagrams.

We practiced this over, and over, and over.

So oftentimes, people tend to write either too much or more commonly, they write too

little, and what they write is just sort of nonsensical and not well organized.

>> So we encourage you to practice how to use your visual aids, in particular how to

write on a white board, to illustrate a technical concept very clearly.

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