Traditional or waterfall alike approach, let's talk about it. We're hitting the ground here and represent five major groups of traditional or waterfall alike approach. Of course, number of process groups were dependent on a particular methodology. But in our example, let's talk about five. So all that some agents or situations that you like to build the house, so you are as a customer, and you would like to build a house of your dreams, where you're going to live. And according to the traditional approach, the first things that we need to do is to decide are we going to do this project or not.

So let's do this. So it's initiation urines, this process group, we need to understand the budget, some legal equations, and or some other equations that could help us to understand are we going to do this project or not? It's like, go no go decision. And let's imagine that we decided, so you're decided to build this house. And as the next step we're moving to the planning. Planning is extremely important process group in traditional or waterfall or like approach, because during this phase we need to plan or actual grades a plan for entire project.

When you do go to the hardware details, and answer such equation, like a color of carpeting, leaving the room as the size of the kitchen, the number of floors and many, many details. So it's very import consuming, and face and it requires spread too much resources and the force. Now, let's imagine that you have a good plan. you blend in deverson where details and you're ready to go to the execution. So You are betting your plant to the engineers, and they started to work. And execution is actually most usual and most resource consuming.

Process groups normally takes around 60 percentage of full allocated resources for the execution. And while engineers are working, you would like to check them from time to time to make sure that they are doing according to the plan out, that's why we're here, monitoring and control process group. And finally, a one day engineer's coming to you and saying, Hey, we finished your house, please check it. And that's about the closing. And let's see the result. Let's imagine that this has happened.

And here's the house. He's this house off your dream well It's hard to answer, right. And finally, you're starting to sink isn't exactly what you wanted your style started to check your plan. And according to the plan, everything was built properly. But you started to realize that you don't need a second floor. Instead, you need a vehicle, but you have a second floor and what you can do.

Of course, you can pay much, much more money and spend more time and resources and have the engineers to redo everything for you. But fairly, I'm not sure that this would work for you because you already spend a lot of money and a lot of resources and more likely you're not ready to do this. And that's about what it holds. It's called to worse. So what I want to highlight here is a customer is not completely happy. And the problem is not that was waterfall oriented.

Approach. The problem is about planning. So we made planning for entire project. And all after some time, maybe maybe engineers working for a year or even more, only Wednesday and delivered zero results, we started to realize it. We don't need a second floor and then the main trick acing here. So waterfall is about entire plank, and as a result, customers not completely satisfied.

So let's make a conclusion on this approach. So waterfall or traditional approach is well defined relate to literary level sequential approach. That's absolutely true, because we need to finish one process group before we can start Zaza one. The next thing is that waterfall or traditional approach is not friendly in regards to the prompt change. That's also true because as long as we have the plan, we're not very flexible in terms of change. And finally, waterfall is not were friendly, or actually not very friendly in terms of cooperation between the customer or actually stakeholders around the San Juan, sexual execuse approach, because as long as you have the plan, and as long as you put your signature on zap Lam or papers, from that moment when the execution is started, not much you can do.

Of course, you can change something, but it's very risky and it's not very friendly in waterfall, or traditional approach. So that was the story of clouds building based on traditional or what whole like approach. Let's try to do the same house but the next time we're going to use a general approach