Category Archives: Software Testing

Topic 15 – Advanced Software Design

Why do I need to learn about advanced software design?

I think that I already learned about software design in the Topic 12 – Introduction to Software Design.

Now your task is not just to build a house.  Your task is to build a city. 

The situation is similar to when you create complex software. Now, you are responsible for creating a software system containing about 10,000 classes for 5,000 people to use in 15 years. The maximum system downtime must be less than 5 minutes in 15 years.
Image that you have to create a system that serves millions of people simultaneously like Facebook or YouTube or Amazon or Office 365 or Gmail. Are you able to create it?
Image that you are tasked to create frameworks for developers to extend such as ASP.NET Web Forms or ASP.NET MVC or  Laravel or Yii. Are you able to create one?
If you are not sure how to fulfill these tasks then probably, you should learn how other people crafted similar systems and adapt their experiences to your case. Advanced software design knowledge will then be useful for you.

What can I do after finishing learning advanced software design?

You will know how to design a very complex software system that satisfies not only functional requirements but also security, modifiability, scalability, reusability, extensibility and reliability requirements.

That sounds interesting! What should I do now?

Advanced software design requires a lot of reading. Please do review your software design knowledge introduced in the Topic 12 - Introduction to Software Design first.
Because nowadays software can be applied to many fields, each of them requires specific advanced software design knowledge, in this topic, we only focus on enterprise software because of its popularity.
Before you design a complicated system you must thoroughly  understand its sophisticated requirements. This is a critical step when building a large system. Please read this "David C. Hay (2002). Requirements Analysis: From Business Views to Architecture" book to learn how to capture requirements for an enterprise system.
After that please read this "Deepak Alur et al. (2003). Core J2EE Patterns: Best Practices and Design Strategies" book this "Martin Fowler (2002). Patterns of Enterprise Application Architecture" book.
After that please read 
- this "Eric Evans (2003). Domain-Driven Design: Tackling Complexity in the Heart of Software" book and
- this "Jimmy Nilsson (2006). Applying Domain-Driven Design and Patterns: With Examples in C# and .NET" book and 
- this "Scott Millett and Nick Tune (2015). Patterns, Principles, and Practices of Domain-Driven Design" book.
After that please read this "David Budgen (2011). Software Design" book.
After that please read this "Len Bass et al. (2012). Software Architecture in Practice" book, especially chapter 5, 8 and 11.
After that please read 
- this "Cloves Carneiro Jr. and Tim Schmelmer (2016. Microservices from Day One: Build robust and scalable software from the start" book and 
- this "Sam Newman (2016). Building Microservices: Designing Fine-Grained Systems" book.

After finishing the books please click Topic 16 – Calculus to continue.

Topic 11 – Software Testing

Why do I need to learn about software testing?

Just image that a user installs your application, opens it and "BOOM!", it crashes. Is it good?
An even worse case is when your software operating an airplane suddenly hangs up while the airplane is still flying in the sky. Can you image what may happen?

How do you ensure that your application solves your customer's problems? How do you know if your software meets its users' requirements? How do you give your users' confidence about the correctness, reliability and security of your software?

In order to answer these questions adequately you need to learn about software testing.

What can I do after finishing learning software testing?

You will know how to design and write a test case, how to prepare test data, how to test software structurally and correctly, how to automate testing tasks, how to report bugs.

I am a programmer. I am not a tester. Do I really need to know how to test software?

Many application capabilities must be tested by a programmer.
Many software testing tasks can only be done by a programmer.
Therefore you have to master software testing knowledge.

Alright! What should I do now?

Please read 
- this "Cem Kaner et al. (1999). Testing Computer Software. 2nd Edition. Wiley" book and 
- this "Lee Copeland (2004). A Practitioner's Guide to Software Test Design. Artech House" book.

After finishing these books please click Topic 12 - Introduction to Software Design to continue.