The Well-Dressed Programmer

-



Comments

Post a Comment

Popular posts from this blog

Agile people still don't get it

-
I just attended Test-Driven Development presentation which represents everything that is wrong about the way Agile advocates are trying to evangelize their practices.  I don’t have anything against the presenter in particular, but it’s really time for Agilists to rethink the way they communicate with the real world. Here are a few comments on his presentation. One of the first slides that deeply troubled me claimed the following: Tests are (executable) specs. If it’s not testable, it’s useless. First of all, tests are not specs.  Not even close.  Somebody in the audience was quick to give a counter-example to this absurd claim by using a numeric example ("how do you specify an exponentiation function with a test?") but my objection to this claim is much broader than that.  Relying on tests as a design specification is lazy and unprofessional because you are only testing a very small portion of the solution space of your application (and of course, your...
Read more

What is the actual difference between IaaS, SaaS and PaaS in Cloud Computing?

-
Image
  Almost everyone who is beginning to read about Cloud Computing will encounter the difficulty of understanding the intricate difference between SaaS, PaaS and IaaS under the Cloud Computing realm. I am detailing the differences below in a way I understood it. May be you have an alternate approach to understanding the difference, nevertheless I believe that the explanation below gives you an insight into the beautiful difference between the three terminologies. Firstly, the terms stand for the following: SaaS: Software as a service. PaaS: Platform as a service. IaaS:  Infrastructure as a service. Whenever you consider a cloud computing system, (or rather let’s consider a simple server), there are three main types of capabilities that it exposes. These are: 1) Computing: Of course, you need lot of computing power to perform complex calculations. This is achieved by installing high-end complex processors into the hardware to expose to computing capability. Such processors ...
Read more