MobileRobotK4/Education/bahan ajar/agile/IBM CD0116EN Agile and Scrum Fundamentals/2/3.1.2.1_Scrum_Overview-en.srt

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After watching this video, you'll be able to distinguish between Agile and Scrum, define the

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key characteristics of the Scrum methodology, and describe the steps in the Scrum process.

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Agile and Scrum are two words that many people use interchangeably, but there really is a difference.

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Agile is a philosophy. It is not perscriptive. It's a philosophy for doing work. Scrum

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is a methodology. It is perscriptive. It's a methodology for working in an agile fashion. So,

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what is Scrum? Well, it's a management framework for doing incremental product development.

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It emphasizes small, cross-functional, self managing teams. And it provides a structure of

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roles and rules, and artifacts, and we're going to learn about all of those. It also uses these fixed

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length increments that are called sprints. We're going to get into sprints in a moment. And it has

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a goal of building an increment each time through a sprint, a potentially shippable increment each

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time through that iteration. Very, very important that you get stuff in your customers' hands early.

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So, I like to say, "Easy to understand, difficult to master." There's not a lot of rules in Scrum,

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but somehow it's really, really hard to do. And I attribute it to being a ballerina, like,

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all you have to do is dance on your toes, right? How hard could it be? Well, we all know

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it takes years to gain the muscle memory and build up your muscles to be able to dance on your toes.

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It's not as easy as it looks, and Scrum is the same way. Not as easy as it looks. So, my advice

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is if you've never done it before, hire somebody on the team who has, have someone to guide you,

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someone to mentor you, because it is a lot harder than it looks. So, let's talk about the sprint. A

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sprint is one iteration through the design, code, test, deploy cycle, right? So, you're doing these

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mini iterations. It's kind of like the software delivery lifecycle. In a mini inner iteration.

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Every sprint should have a goal, right? You should, everybody should, understand what is

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it we're trying to build with this increment. What should this increment do at the end of the sprint?

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And then the Sprints are usually two weeks long, some people say two to four weeks,

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I find four weeks to be far too long. A lot of things can change in four weeks, right? Remember

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small, want to work in small batches. And so, I think it's really important to try to keep your

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sprints to two weeks, some people get them down to one. That's a little too fast for me, but two weeks

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seems to be a good goal to make your sprints. So, let's look at the steps in the scrum process.

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You've got the product backlog. This is the list of all the stories

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of everything you ever want to do with your product. This is it, this is everything,

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it's kind of your to-do list of everything you might want to do. Then we've got something called

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backlog refinement, that's when we go through the product backlog. And we groom the stories to

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make sure that they're sprint ready because we want to start doing planning on those stories.

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Then, we have a planning meeting where we produce a sprint backlog. Notice the sprint backlog is

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smaller than the product backlog. The sprint backlog is just those stories that we want to

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accomplish in the next sprint, in the next two weeks. So we take from that product backlog,

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pare it down into a sprint backlog of just the stories to execute in the next sprint. And then

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we start our two week sprints. And every day we get together and do the daily Scrum or the daily

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stand-up where everybody gets to answer three questions. What did you do yesterday? What are

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you going to do today? And is there anything blocking you or impeding you from getting up

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further? So you go through that every day for two weeks, build your sprint.

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And then finally, hopefully, you've got a valuable shippable increment at the end of that process.

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Agile development is iterative. You're going to go through this again and again.

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Design, code, test, deploy, design, code, test, deploy. I mean, this is this is what you do

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in every sprint. And notice, you know, you've got to have some kind of deploy, it's not enough

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to just do design, code, and test, design, code without deploying it and getting feedback,

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right? So, so every sprint you make a plan, you go through the software delivery lifecycle

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cycle, and then you deploy that application and you get some feedback from the customer

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that is input to the next plan to go through the next cycle. In this video, you learn that Scrum is

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a methodology that follows the Agile philosophy. The Scrum management framework provides structure

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through defined roles, meetings, rules and artifacts. It also prescribes small

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cross-functional, self-organizing teams. Uses fixed length iterations called sprints,

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and produces a potentially shippable product increment with every iteration.