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February 2011 - Posts - Uri Lavi

February 2011 - Posts

What should I learn in my CS degree?

My strongest believe is that everyone who devotes his life to Software Engineering, should have a CS degree.

Graduation

Why? Well, it's a different question, so I would postpone my answer for now.
Instead, in the following post I would like to emphasize the subjects (and hence the tools) one should acquire during his studies.

These tools are essential in creating a "shared" language between us the engineers.
These tools are essential in being the solid ground of our day to day architectural and lingual abstractions.
These tools are essential in being the means of our research capabilities, logical deduction, advantages and disadvantages of each method we apply and etc...

In my opinion, those are the topics one should concentrate on:

  • Data Structures - Any course that involves Data Structures, from basic to more complex Data Structures.
  • Algorithms - Graph Algorithms, Dynamic Algorithms, Greeding Algorithms, Aproximate Algorithms, Computational Geometry and etc...
  • Operating Systems - Everything that involves Operating Systems from theory to practice. If there is a lab on OS, take it!
    The importance of understanding the bits and bytes of the biggest abstraction we work against every day is priceless.
  • Artifical Intelligence - Searching techniques, Logic deduction, Decision tees, Learning technique such as Markov Chains, Neural Networks, Bayesian Networks and etc...
  • Programming Languages - No, it isn't "Programming in Java"; These courses involve the principles of Software Languages, which are crucial for identifying the right tools for the job.
    Imperative and Declarative Languages; OOP, AOP, Functional and Logical Languages; The more principles you learn (and the more languages you see) the more you will understand how to apply these languages and when.

In addition, I recommend taking a few "narrowing" courses, courses that are deepening your expertise in a specific field.
Some examples are: Natural Language Processing, Computer Vision or Distribute Programming.

It's worth noting that, in my opinion, practical principles of "constructing" software should be learned differently.
Those skills are better acquired by enrolling into an apprenticeship program, by reading classical books and essays, by rubbing elbows with others or by deliberately practicing.

If you are interested in such practical experience, please apply for the Mentorship/Apprenticeship program we enrolled in our Software Craftsmanship Group.

Posted by Uri Lavi | 1 comment(s)

Seventh Software Craftsmanship Meeting

I am very excited to announce the 7th SCIL meetup.

How to utilize efficiently Programming Languages?

Lectures:

-Dynamic languages seem to be more concise and less verbose than their Static counterparts.
However, using Dynamic languages efficiently requires a different approach.
During the first part of our meeting Reuven Lerner will demonstrate the
differences between Dynamic and Static languages and present the right approaches to utilize the full power of a Dynamic language.

-While general purpose languages can solve any problem, the creation of special-purpose languages for expressing problems and solving a particular problem domain is highly efficient.
During the second part of our meeting Dror Helper will explain and demonstrate what are Domain Specific Languages (DSLs) and how they can be used to solve problems in a particular domain.

Hands On:

In the hands on part we will exercise writing DSLs.
Please bring your laptops (with the environments set-up) to the meeting.

Time frames:

Lectures:
18:00 - 18:25 - Gathering
18:25 - 18:30 - Short Intro
18:30 - 19:00- Static vs. Dynamic Languages
19:00 - 19:05- Break
19:05 - 19:35 - Domain Specific Languages (DSLs)
19:35 - 19:50 - Break + Giveaways

Hands On:
19:50 - 21:00- Implementing DSL

Giveaways:

We have great giveaways to give during the meeting. DON'T miss them :)

Food:

Although we are plaining to have basic food, please also bring something with you for the group.
(Thus we will be able to support the event with the user generated food).

Please register here or directly from my blog:

 

Software Craftsmanship - Meeting 6

Chronicles of the 6th Software Craftsmanship (SCIL) meetup.

This time, we discussed and practiced my own very beloved technique - called Refactoring.

During the session Itay Maman demonstrated a real life project that he needed to refactor for his company.
On the first part of our meeting, Itay refactored a very lengthy method in the CustomAction class, called actionPerformed.
Here is the initial code of that method.

You can watch the session here, where Itay demonstrated his approach and the refactoring steps he applied.

On the second part of the meeting, we practiced by refactoring the same code, but this time without the unit tests.

If you are familiar with Refactoring, then you should know that it is totally incorrect to perform it without the "safety net", i.e. unit tests.
However, Itay's genius idea, just proved to all of us that changing the code without having the confidence of "not breaking" the system (i.e. unit tests) is very hard and almost impossible.

As usual, I had a great fun. My hope that the community will continue to grow!

SCIL6