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  Does mobile application need architecture design?

Looking back to the history of PC software development a dozen years ago there was no  software architecture design, the consequence of this was that there would be a high cost on software maintainability and scalability. Later, people recognized the importance of software architecture and started to make the concept of software architecture mature. Now almost all software will have architecture design which has been the consensus of the software development companies and developers.Simi...

   Software design,Architecture design,Mobile app     2012-04-12 11:14:37

  What Happened to Software Engineering?

Over the past few years there has been an evolutionary shift in the world of software development.  Not very long ago, the dominant Software Development Life Cycle (SDLC) methodology was the Waterfall Method with very specific phases that separated the construction phase from phases like design and test. The software development industry, still very new, was striving to find a repeatable, predictable process for developing software.  The best model for this seemed to be the physical sc...

   Software engineering,Software,Developmen     2011-09-07 10:42:34

  Call of Duty Elite Has Amazing Security

I had tried to register for Elite yesterday, and the servers were being funny, so I wasn't sure if I'd registered. I just now tried to reset my password, and I got the following:Hello JoshForgot your password? These things happen. Access your account with the password below:{Actual Unencrypted Password}Really? They're storing hundreds of thousands of passwords in plain text??EDIT: Not sure what the downvotes are for, surely it's not because huge companies like Steam and Sony never get hacked, an...

   Game,Elite,Call of duty,Defect     2011-11-15 12:42:50

  My ten development principles

After several years developing software, I have acquired a very a strong opinion on how software should be developed, I actually have come to the conclusion that everything boils down to 10 principles, that if well implemented, will make any software development successful. 1.- Customer first. “If we don’t take care of the customer… somebody else will.” Customer first means focusing from a customer perspective on real value for the product being developed,...

   Principle,Software,Development,Communica     2011-08-15 07:28:55

  NIO vs IO in Java

Java 1.4 provides a new API for handling IO -- NIO. This is a non-blocking and buffer oriented IO API. Below are main differences between the NIO and IO in Java. IO NIO Stream oriented Buffer oriented Blocking IO Non-blocking IO N/A Using selector Stream oriented vs Buffer oriented The main difference is that IO is stream oriented where the data is read byte by byte and the data will not be buffered normally.This means there is no pointer to move forward and backward in the stream. I...

   JAVA,IO,NIO     2016-01-10 01:40:02

  What are some lesser known but useful Unix commands?

A few that come to mind, some less known, some more: xargs or parallel: run things in parallel, with lots of options sed and awk: more well-known but still super useful for processing text files, and faster than Python or Ruby m4: simple macro processor screen: powerful terminal multiplexing and session persistence yes: print a string a lot cal: nice calendar env: run a command (useful in scripts) look: find English words (or lines in a file) beginning with a string cut and paste and join: data...

   Linux,Unix,Command,Less used     2011-12-27 09:27:49

  What's in common between building a startup and having a baby?

Many young people put their dreams into their own startups. Building a startup not only needs your idea, it also takes time and effort. You also need to take the risk of failing. Actually, a startup is just like your own baby, you spend day and night with it, you are excited with its growth. What's in common between building a startup and having a baby? One popular summary is : 1. The conception is the most fun part.2. Then getting the darn thing to take birth is painful3. In the early months an...

   Startup,Baby,Tips     2013-07-21 21:40:17

  Differences between bashrc and profile in Linux

After login to a Linux system, the command console will show up with a prompt label such as # or ~, a shell command can be typed after this prompt and the system can execute the command thereafter. All these operations are handled by shell. Shell is a command language interpreter that executes commands read from the standard input device (keyboard) or from a file. There are different types of shells such as bash, ksh, csh etc. The most commonly used of them is bash and it's also the de...

   LINUX,PROFILE,BASH,BASHRC,.BASHRC,.PROFILE     2016-11-05 22:17:51

  How does computer boot up?

The whole boot process of computer can be summarized in 4 phases. 1. BIOS In the 70's  read-only memory(ROM) was invented. The boot program is written into ROM, the first thing the computer does is to read and execute this program when it's powered on. The program in this chip is called "Basic Input/Output System" (BIOS). 1.1 Power-On Self-Test The BIOS will first check whether the computer hardware can fulfill the basic conditions for booting up, this process is called Power-On Self-Test...

   Computer, boot, partition     2013-02-23 23:19:47

  How to optimize MySQL insert statement

For a big data system, one problem is the data access efficiency, one more problem is that the data insertion is very slow. We had a service system, the data loading process would take 4-5 hours. This time consuming operation is risky since if the program is interrupted during the loading process, it might be rerun, this will be troublesome. So it's necessary to improve the insertion efficiency for big data systems. Here we provide two optimization suggestions. 1. Combine multiple insert stateme...

   MySQL,insert,optimization     2012-10-24 22:03:13

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