Introduction - An overview of major software aspects

It's time to start a series of posts related to major software aspects. Every topic is too big for itself to be covered completely with just one post, so the purpose of these series is:

• Have an overview of every aspect in a language that everyone with some knowledge about software development can understand and find it useful. 
• Understand why software development is so important nowadays and also why it's so complex

These is the index of the topics that I will cover:

1. Performance - back end and
2. Performance - front end
3. Clean code
4. Software architecture
5. Soft skills
6. Administrative aspects

Keep in mind that the affirmations in the post are valid for web applications and mobile apps. This is because most systems nowadays fall in one of this categories.

I you want me to talk about a particular subject, just let me know in the comments. Enjoy the series!