Friday, April 22, 2016

Little more on Threads in Java

"Threads in Java" is a wide topic to cover in a single post and a one with hell lot of details all around the web.
In this series of posts I'm planning to cover on following topics:
       1. Terms Used in Concurrency
       2. Monitors And locks
       3. Threads States
       4. Concurrency Package
       5. Thread Pools
       6. Threads in Spring

Thursday, November 12, 2015

Being a Working MOM

"A Woman Can't Have It All!" - Indira Nooyi said that in an interview. Working mom is the one who understands the inside story of it. Having a full time professional career and bring up kids altogether is not an easy task, but definitely not an impossible one.

As like any man, a woman too starts her career with tons of passion, ambition and pride. She too marches in par with (might be ahead of) her male colleagues in each step until the stagnation point of balancing between life and work hits. There are quite of lot of women who have given up their career to bring up their kids. Percentage of women at executive levels in any corporate/institution is merger in comparison with that in the entry level.

On the professional front she struggles to give up and leave behind the dreams, ambitions and passion which she lived upon once. On the personal side, she is not ready to compromise on cooking he kid's favourite or spending quality time with the kid in the mid of hectic deadline in the professional front. 
Its just the woman who knows how to handle her kid in the mid of all chaos with compassion along with resolving the toughest at work.

The guilt of not giving the needed and more deserved childhood for the kid hits her down everyday, especially during the early ages of the the kid. But she raises back with vigour to chase on both ends.
Well, she too have got just 24 hrs a day !

There are quite a lot being talked and worked around on empowerment of women. Do we have the system to support it ? There are schools which deny admission for kids of working moms and quite a lot...

Beyond all, woman, the multi tasker, empowered by nature lead forth the hurdles and move higher in both fronts.

Monday, November 24, 2014

OCMJEA - Resources

I just started out my plans and preparations for OCMJEA - Oracle Certified Master Java Enterprise Architect. As I go through it, I'm planning to keep this blog updated with what I read and learn on a periodic basis - minimum of 2 posts per week.

This first one is on the resources available all around:

Blogs and sites: 
   Specific to Notes/study guide:
   More Info:

Questions and Mocks:



Friday, May 20, 2011

Software Estimation

Being worn-out with just project estimation and re-estimation alone for the past few months, why not write some thing about software estimation though its not a small topic for me write few lines and finish off. So, here goes a very small snap-shot...

As like the saying, 'Don't fail to plan unless you plan to fail', a crystal clear planning is the basic necessity for successful execution of a project and estimation forms of the one important basics of the plan.

By Software estimation what we estimate on:
        1) Effort: Estimation of amount of work to be done. Eg: Number of Function Points involved or LOC to be developed.
        2) Time & Cost: Time needed to get the work done. Usually expressed in work-months/man-months/Person-weeks.
        3) Resource: Involves estimation of hardware (Well we can't develop a cloud management system with just 2 Desktop terminals!), software (Need to pay for MS products!), human resource (most important part: rightly skilled human resource availability), network infrastructure etc...

So, how are these estimations done and what are considered while estimating?
Input or factors to be considered:
        1) Historical data (Experience matters!!!)- Historical data from prior project on similar domain/technology/
        2) Complexity - Effort needed for developing a inventory management system and space shuttle monitoring system are not same. Complexity of the requirement matters!
        3) Resource Skill level - A very important factor, which leads to include training cost. In some cases, this is a deciding factor for project implementation platform too!
        4) Prior experience on similar projects - Lessons learned always helps in future!
        5) Tools - Usage of which can ease the job to fasten the implementation/test phases. There is difference in writing code in Eclipse and EditPlus.
        6) Process - Agile/XP/Waterfall too matters. (2hrs/day on Stand-up meetings will have impact on T&C!)
        7) Development platform - They say, its faster and easier to develop using Java/JEE.
        8) Of course Software requirement :) (We are not arrows with out target! But includes both FR and NFR)

So, how these estimated are done? There are lots and lots of estimations techniques: COCOMO, parametric model - Cost Driver based estimation, SDM, SLIM etc...

After doing all, should we rely on what was estimated during project initiation till project closure? A very important thing, estimate must be revised over the phases of the project at different stages. Requirement takes different image over the course of execution and as usual unexpected surprised welcomes every new day. Beyond everything, T&C requirements should be kept on track. Cost-over run project gets scrapped too! These mandates the revision of estimates at due intervals.

Reminds me of my S/W Engg Prof. iterating, "None of the Software projects completes on estimated cost and time".
After all, those are just estimates and not actuals! We need something under the term called, "Variance" too!

Wednesday, May 18, 2011


Can't stop again! Renewing my blogging habit after a long time, its been a long interval this time.
Can't imagine how I missed blogging while there were a lots happening around... Oracle Acquisition of SUN, Booming of Social Networks, UPA's second term, Introduction of CSAT, SCAM filled CWG.... in the personal front: moving back to Chennai, its unbearable climate ... a lot more.
But now, I pledge to continue non-stop over the hurdles.

Thursday, November 20, 2008

It's cloudy everywhere

Cloud Computing !!! Cloud Computing !!! Cloud Computing!!!! - Its Cloud everywhere. So, whats that? Something like grid computing? Is it providing Hardware as a Service along with SaaS ?
Some interesting short videos which explains this, really interesting:

Friday, November 14, 2008

To be Java programmer is unfair??

"Employement agencies only need Java programmers" - Is it unfair?
Got the reference from a tweet of Sun, a choir from Finland:

But few more to muse about, "Women are still paid less than men", "Jobs go to China".