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Monday, September 10, 2012

Project Estimating, project estimation




I believe we should consider these points for estimation  process. there may be more, pls feel free to add. 
1.       Risks, Scope  and complexity of the project
2.       Domain/Functional/Technical Knowledge for requirements of team
3.       know strengths and weaknesses of individuals team members for requirement
4.       Know weaknesses of requirement with analysis meetings with functional expertise team members, QA, Architects and business analysts. 
5.       Process time:  process hours of project (including QA push process, development label creation, SCRUM meeting and any developer environment setup (not main environment setup) )
6.       Development time: real development hours
7.       Unit testing time: unit testing hours 
      
       EXCEPTION Handling:
8.       Developer buffer time
a.       waiting period for dependency information
b.      Estimations Can Go Wrong
c.       Unrealistic interpretation of original requirements
d.      Inadequate/unclear requirements
9.       Management buffer time ( Buffer time as per risks of project)
a.       Availability of All the Resource
b.      System outage
c.       Estimations Can Go Wrong

Few points
1.       Historical data for the previous estimation for improvement and accuracy

2.       It’s good to include assigned developers in estimation process after 1st level of estimation (after Architects estimate).
3.       In estimation process, it will be good to give enough time to developer so he can at least go through limitations of current system and resource, learning curves of new technology for project.
4.       It will be good, if we get time for proof of concept depends on project, if project needs proof of concept.   
5.       More meetings with business analyst and QA will help to understand and streamlining the project requirements. 
6.       Estimation will be more accurate and efficient if developer will be included in design phase.

Tuesday, August 28, 2012

Enable CLOB in DataSource in ColdFusion administrator / [Macromedia][SQLServer JDBC Driver][SQLServer]XML parsing: line 1, character 64000, equal expected

ERROR:   Error Executing Database Query. [Macromedia][SQLServer JDBC Driver][SQLServer]XML parsing: line 1, character 64000, equal expected  

CASE:  we get this error when we try to retrieve long text/characters from database in cfquery.   Default configuration for Long Text Buffer (chr) is 64,000. when you expect result more than 64,000 characters in CFQUERY then we need to enable  "Enable long text retrieval (CLOB)". 


see below image for reference








Thursday, August 23, 2012

upgrading jquery to 1.8.0/upgrading jquery to latest version

its very easy to upgrade to latest version of jquery.  we need to take care of very few things.


1. If you are using "checked" property like below then you need to change code like below. the reason its not returning as true/false anymore.

old code:  
    if ($('#testCheckbox').attr('checked')== true && 

your new code need to be like this: 
    $('#testCheckbox').is(':checked')


2. if you have any code like below then change as per new code

old code: 
    var cType = $("select:cType").val();    

New Code
    var cType = $("#cType").val();


3. if you using validation plugin then old version of validation plugin will not be supported any more with new jquery so you have to upgrade your validation plugin also. Upgrade validation plugin to 1.9.0

http://bassistance.de/jquery-plugins/jquery-plugin-validation/

4.  upgrade your old plugins, 
    jquery.form.js -- upgrade to new version of this plugin. 


Thursday, August 16, 2012

social change without society

is it possible to have social change without society? No.

is it possible to ask questions without knowledge? No

is it possible to change someone without changing yourself ? No



Friday, June 29, 2012

stack trace javascript

stack trace in javascript
This was requirement in my current project, where i need to log real JavaScript error. Most of the time i was getting my javascript error was giving line numbers of jquery main javascript files but error was somewhere else so I decided to trace js error.


this is simple code you can try to trace. you can write green block of code wherever you want to trace.
you can also write a plugin or a common function and call where ever you want.

this is simple demo of understanding tracing error. 

I found a gud link for arguments object. this is very simple page which will make u understand arguments object.

http://www.seifi.org/javascript/javascript-arguments.html


<script>
function funcallee ()
{
    var trace ="", currentFunction = "";             
    try{
         currentFunction = arguments.callee.caller;                                       
           while (currentFunction) {
                 var fn = currentFunction.toString();                 
                 var fname = fn.substring(fn.indexOf("function"), fn.indexOf(")") +1 ) || 'n/a';                                       
                trace = trace + ' --> '+ fname;                    
                 currentFunction = currentFunction.caller;
           }
    }catch (e){
        trace= "";
    }     
    alert (trace);       
}             
             
function testcaller_1()
{
    try{
    var h = j;
    alert (h);
    }
    catch(e){
        funcallee();
    }
}          

function testcaller_2()
{
    testcaller_1();   
}
   
testcaller_2();


</script>

Monday, June 18, 2012

access denied javascript error internet explorer / resize access denied error javascript

Access denied JavaScript error in internet explorer
Initially i was thinking this error was coming because of some ajax cross domain access. Usually when you try to access different domain from your site, it gives you error for cross site scripting.

after long time, I found and observed that this access denied error is coming when i am trying to resize my internet explorer browser. It was random not all times.

I read below article and observed access denied error is coming only when i use to click mouse button and hold it for a while (just like dragging mouse ).

the reason is windows stops resizing or moving of any window when your mouse is clicked and hold on (ready for mouse drag event).

few tips to avoid this error on resize.
1. do your resize on page load not on jquery ready function.
    - because ready is faster then page load function. this may avoid user's holding mouse for a while.




see below article. this will be also helpful.

http://support.microsoft.com/kb/904947

Friday, June 15, 2012

reading cookie in asp .net set by coldfusion

1. cookie has special characters
2. unable to read cookie  in asp.net set by coldfusion
3. how to replace special characters in cookie coldfusion asp.net
4. replace special characters in cfcookie

:) this was a good issue for us. we have two application, one in coldfusion and other in asp.net

Coldfusion application was setting a cookie and that cookie was supposed to read by asp.net application. 
cookie set by coldfusion was url encoded and it was having %2b characters for "+" sign so when asp.net was reading cookie as %2b signs so we were not able to validate users based on cookie read by asp.net application.

so at last we figured out this and found browser is storing cookie in url encoded format and asp.net application needs to decode cookie.

we used below code in asp.net to decode cookie set by coldfusion.



cookieValue= HttpUtility.UrlDecode(myCookie.Value);


 Few tips:
1. always use F12 developer tool to see all set cookie in internet explorer. 


finally we solved problem :)