UML

16 03, 2020

What’s the Purpose of a Sequence Diagram?

By |2020-03-16T10:03:54+00:00March 16th, 2020|OOD, OOP, UML|0 Comments

Sequence diagrams describe a specific scenario and not all the interactions that happen between the objects that form a system. When we draw a sequence diagram, we represent a snapshot of a given part of the live, working system. Instead of having a huge sequence diagram describing every interaction between the objects, we create several targeted ones. It's like performing a cardiac CT-scan instead of scanning the entire body. If we're only interested in the heart and its blood vessels, why should we examine the entire body? If you want to find out more about UML and object-orientation, check [...]

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16 07, 2019

By |2019-07-16T11:15:24+00:00July 16th, 2019|OOD, Software development, Udemy, UML, Video Course|0 Comments

I want to share my thoughts on learning and using UML. The latest UML 2.5.1 specification is 754 pages long. I firmly believe that nobody on this planet needs to know all that stuff to design software systems efficiently. UML is a perfect candidate for the 80/20 rule (aka Pareto law): 20% UML is sufficient in 80% of the cases. Knowing *some UML* is better than getting lost in the nitty-gritty details of visual artifacts. Going down the UML rabbit hole can easily lead to unnecessary complications and to what I fear the most: "analysis paralysis." In my "UML and Object-Oriented [...]

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1 02, 2019

My book Design Patterns in Swift is Available for Preorder

By |2019-02-01T08:45:12+00:00February 1st, 2019|book, design pattern, iOS Programming, Object-Oriented Design, UML|0 Comments

My book Design Patterns in Swift is available for preorder on Amazon. I plan to release it by March 26, 2019. https://www.amazon.com/dp/B07MDD3FQJ

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14 09, 2018

Avoid Humiliation During Job Interviews or Design Meetings

By |2018-09-14T08:46:43+00:00September 14th, 2018|Object-Oriented Design, OOD, Software development, Udemy, UML, Video Course|0 Comments

Study Object-Oriented Design and learn how to draw UML diagrams to avoid humiliation during job interviews or design meetings. Explore the fundamental concepts behind modern, object-oriented software design best practices. Learn how to work with UML to approach software development more efficiently. Throughout the course, we go through several examples to familiarize yourself with software design and UML. Plus, I walk you through a case study to review all the steps of designing a real software system from start to finish. Click here to enroll for just $9.99 Enroll for just $9.99 Topics include: Understanding software development methodologies Choosing [...]

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9 08, 2018

New Lynda Course “iOS Development: Architecture”

By |2018-08-09T19:30:08+00:00August 9th, 2018|course, Design, iOS Programming, LinkedIn Learning, Lynda, OOP, Software development, Swift, Swift 4, Swift Programming, UML, Video Course|0 Comments

Woohoo! My latest course "iOS Development: Architecture" is now available on LinkedIn Learning: https://www.linkedin.com/learning/ios-development-architecture   and on Lynda.com: https://www.lynda.com/iOS-tutorials/iOS-Development-Architecture/699340-2.html

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28 06, 2018

Three Courses that Make You a Better Developer

By |2018-06-28T13:33:41+00:00June 28th, 2018|algorithms, course, data structures, Design, iOS Programming, OOP, Swift, Swift 4, Swift Programming, Udemy, UML, Video Course, Videos|0 Comments

Do you want to become a better software developer? If you said yes, these offers will probably interest you. In these three courses, I share practical knowledge that can be applied instantly. 1. Software Development from A to Z Get insights into the software development industry. You will acquire professional and technical skills together with an understanding of what software development is. Click here to enroll for just $9.99 2. UML and Object-Oriented Design Foundations Learn about the fundamentals of Object-Orientation, the programming paradigm used to build every modern software system. We also delve into UML, the communication standard that every software [...]

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23 06, 2018

New Book: Software Development from A to Z

By |2018-06-23T08:22:27+00:00June 23rd, 2018|book, Software development, UML|0 Comments

My newest book Software Development from A to Z is available on Amazon and iTunes. This is the perfect book for you to get insights into the software development industry. You will acquire professional and technical skills together with an understanding of what software development is all about. Contents and Overview This book aims to teach you the fundamentals of how software applications are created and maintained. This easy to follow book explores the principles and techniques of software development. You will acquire professional and technical skills together with an understanding of what software development is all about. Upon [...]

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12 06, 2018

Easy “Trick” to Turbo-Charge Your Swift Projects

By |2018-06-12T08:09:38+00:00June 12th, 2018|algorithms, iOS Programming, OOP, Swift, Swift 4, Swift Programming, UML, Uncategorized, Video Course|0 Comments

Sometimes, small code changes can bring considerable benefits.  By using specific keywords, we can improve the performance of our code.  Before I reveal that little optimization trick, you need to understand why it actually works. So, let’s talk first about method calls. Swift supports different techniques to invoke a method at runtime. Static dispatch is when the compiler can infer at build time which method to call. Static dispatch won’t work if subclasses can override the methods or the properties of the superclass. The compiler can’t figure out at compile time whether we’re referring to the superclass’s implementation or [...]

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