Development may refer to: [http://en.wikipedia.org/wiki/Development]
Top 20 Replies by Programmers when their programs don't work
1. "It works on my machine."
2. "Where were you when the program blew up?"
3. "Why do you want to do it that way?"
4. "You can't use that version on your system."
5. "Even though it doesn't work, how does it feel?"
6. "Did you check for a virus on your system?"
7. "Somebody must have changed my code."
8. "It works, but it hasn't been tested."
9. "THIS can't be the source of THAT."
10. "I can't test everything!"
11. "It's just some unlucky coincidence."
12. "You must have the wrong version."
13. "I haven't touched that module in weeks!"
14. "There is something funky in your data."
15. "What did you type in wrong to get it to crash?"
16. "It must be a hardware problem."
17. "How it that possible?"
18. "It worked yesterday."
19. "It's never done that before..."
20. "That's weird...."
As I am in the middle of the development (a little bit more than 60% done) of my PHP Bayesian Naive Filter (a learning filter against spams comment, guestbook, and posting in general) for Joomla/Mambo and after reading some paper found on internet:
I decide that my project will be certainly a failure if I rewrite or reuse a Bayesian filter engine which is not accurate or using the latest countermeasures. Since I do not want to develop during 3 years an effective filter (will I ever be able to do it???), I came across the idea of implementing the component com_bayesiannaivefilter in such a way that I can abstract the core engine and use the work done by the best open source project.
It is also clear for me since the beginning that a spam filter must be trained on a very large data volume (more than 1000 messages, the more the better) in order to categorize the message with accuracy. Webservices will have my preference as an internet entities with the require cpu horsepower and data store should be able to offer the best categorizing messages efficiency....
My component will be able to use following Bayesian Naive Filter core: (planned but not done, I it is technically possible I will do it)
|Plugins||Remarqs||Possible open source project|
|JAVA||I am a J2EE developer, Back to the roots :-)||Som. to propose? contact me!|
|PHP||Core done, but very simple tokenization and hashing
Volume of data small
|Som. to propose? contact me!|
|PERL||Can PHP call perl code?||Som. to propose? contact me!|
|CGI-BIN||Should be easy to do||Som. to propose? contact me!|
|WEBSERVICES||Should be easy as soon as we found a WS provider
|Som. to propose? contact me!|
Each technology may contains many core engine, or different versions. I will fill this table with possible candidate (You can heelp me by suggesting or speeding development).
This project will be soon committed to Joomla forge!
When Eclipse meet Joomla
The easiest way to develop component, modules, bots for Jooomla using best of the breed open source software.
In order to speed up development of Joomla software, I am currently developing a developer package "start and ready to work". This package will be release at the beginning of next week (18.04.2006)
Click read more...
|100 Continue|| Only a part of the request has
been received by the server, but as long as it
has not been rejected, the client should continue with the request
|101 Switching Protocols||The server switches protocol|
|200 OK||The request is OK|
|201 Created||The request is complete, and a new resource is created|
|202 Accepted||The request is accepted for processing, but the processing is not complete|
|203 Non-authoritative Information|
|204 No Content|
|205 Reset Content|
|206 Partial Content|
|300 Multiple Choices||A link list. The user can select a link and go to that location. Maximum five addresses|
|301 Moved Permanently||The requested page has moved to a new url|
|302 Found||The requested page has moved temporarily to a new url|
|303 See Other||The requested page can be found under a different url|
|304 Not Modified|
|305 Use Proxy|
|306 Unused||This code was used in a previous version. It is no longer used, but the code is reserved|
|307 Temporary Redirect||The requested page has moved temporarily to a new url|
|400 Bad Request||The server did not understand the request|
|401 Unauthorized||The requested page needs a username and a password|
|402 Payment Required||You can not use this code yet|
|403 Forbidden||Access is forbidden to the requested page|
|404 Not Found||The server can not find the requested page|
|405 Method Not Allowed||The method specified in the request is not allowed|
|406 Not Acceptable||The server can only generate a response that is not accepted by the client|
|407 Proxy Authentication Required||You must authenticate with a proxy server before this request can be served|
|408 Request Timeout||The request took longer than the server was prepared to wait|
|409 Conflict||The request could not be completed because of a conflict|
|410 Gone||The requested page is no longer available|
|411 Length Required||The "Content-Length" is not defined. The server will not accept the request without it|
|412 Precondition Failed||The precondition given in the request evaluated to false by the server|
|413 Request Entity Too Large||The server will not accept the request, because the request entity is too large|
|414 Request-url Too Long||The server will not accept the
request, because the url is too long.
Occurs when you convert a "post" request to a "get" request with a
long query information
|415 Unsupported Media Type||The server will not accept the request, because the media type is not supported|
|417 Expectation Failed|
|500 Internal Server Error||The request was not completed. The server met an unexpected condition|
|501 Not Implemented||The request was not completed. The server did not support the functionality required|
|502 Bad Gateway||The request was not completed. The
server received an invalid response from the
|503 Service Unavailable||The request was not completed. The server is temporarily overloading or down|
|504 Gateway Timeout||The gateway has timed out|
|505 HTTP Version Not Supported||The server does not support the "http protocol" version|
Packt publishing has offered me to make a review of two of their new books (Thanks to them). I should receive free samples for review beginning of next week. Since it is two of my favorite subjects (Maven and Joomla!® ), I think it may also interest you. A review will follow in some days.
- Make your extensions extensible, add extensions points to allow third parties to customize your extension
- Create international extensions by enabling multilingual capabilities
- Build more than just HTML pages - create PDF documents, Atom Feeds, and more!
- Improve the user experience by adding Ajax
- Create Atom and RSS feeds to keep users up-to-date
- Utilize the power of Subversion to maintain your source code
- Execute database queries and handle returned data in order to access and modify your data
- Dynamically extend your database tables using JParameter to make your extensions more flexible
- Keep your gremlins at bay by handling errors the Joomla! way
- Work with the file system, interrogate existing files and folders and store data in the file system
- Take control of your workflows by using www.JoomlaCode.org to manage your Joomla! projects
Really worth reading if you are experiencing Agile Scrum development.
I do think AGILE and SCRUM has its place. It is just that I believe this place is running projects under 5 people and delivery durations of less than 6 months. At that level, employing the right people with the right skills and motivation frequently guarantees that MAGIC will occur. The new media industry proves this everyday, irrespective of approach /method used. Good people always have the potential to overcome deficiencies with methods /approaches and poor management. I have seen it time and time again.
From AGILE /SCRUM Fails to get to grips with Human Psychology.
Posted by Kevin Brady on Thu 17th August 2006 at 03:10 PM, Filed in Software Dev Methodologies, Key Articles
This is what I would call
I think you can learn a lot more from these anti scrum pattern failures than from success stories. The path to success is narrower than you may think!, and you can be on a parallel road leading to a failure. Take also time to read all the comments, some are really interesting.
What is the most interesting is this article was written in 2006!
This solution is valid if you do not want to carefully optimize your site, and it come for now at huge initial CPU costs till the cache is filled up. The load on my server has proven to be unacceptable (for me) and I was forced to switch it off. But it may work on your server depending on the page size, number of visitors. Authors are working hard and communicating a lot on the official mailing list to reduce that load and improve the code in the coming weeks
mod_pagespeed is the latest addition to our family of products, performing on-the-fly optimization in the Apache™ 2 HTTP Server. It provides webmasters and web developers that manage their Apache 2 configuration with technology that applies Page Speed performance best practices automatically. Webmasters can get the benefits of the optimizations without having to manually going back and fixing the performance issues that Page Speed detects.
If you trust me, you can download the library module libmod_pagespeed.so for Apache 2.2
Check before installing the MD5 keys of this file
# md5sum -b mod_pagespeed.so 187995e3623a222ec5b54c331ee7ffaa *mod_pagespeed.so
If it matches, drop it into your Apache library folder /usr/lib64/apache2/
On my OpenSuSE system, I was forced to install first
zypper in gcc-c++
you should get after a successful build
Install the module library
cp ./out/Release/libmod_pagespeed.so /usr/lib64/apache2/mod_pagespeed.so
After installing mod_pagespeed, it can be customized and configured by editing the Apache configuration file
so you can run
# cp ./out/Release/install/common/pagespeed.conf /etc/apache2/conf.d/pagespeed.conf
Create some directories
# mkdir /var/mod_pagespeed/ # mkdir /var/mod_pagespeed/cache/ # mkdir /var/mod_pagespeed/files
Has to be writtable by apache
chown -R wwwrun:www /var/mod_pagespeed/
and finally restart apache
There is a lot of available settings that are all well explained in this page http://code.google.com/speed/page-speed/docs/using_mod.html
Here is my /etc/apache2/conf.d/pagespeed.conf stripped of all comments as an example:
LoadModule pagespeed_module /usr/lib64/apache2/mod_pagespeed.so
# This page lets you view statistics about the mod_pagespeed module.
Order allow,deny # You may insert other "Allow from" lines to add hosts you want to # allow to look at generated statistics. Another possibility is # to comment out the "Order" and "Allow" options from the config # file, to allow any client that can reach your server to examine # statistics. This might be appropriate in an experimental setup or # if the Apache server is protected by a reverse proxy that will # filter URLs in some fashion. Allow from localhost SetHandler mod_pagespeed_statistics
You may be forced to remove mod_deflate
You can disable mod_pagespeed by adding in the url ?mod_page_speed=0
Agile testing is a software testing practice that follows the principles of agile software development. Agile testing is built upon the philosophy that testers need to adapt to rapid deployment cycles and changes in testing patterns. Providing and getting feedback early, fast and regularly is one of the testers main task.
You can order a print version at http://www.bbv.ch/de/posterbestellung.html
Find more at http://bbv.ch/de/unternehmen/publikationen.html
Creating software with the agile development process delivers finished products quickly in fast changing and uncertain project environments. While agile development describes several iterative and incremental software development methods, they all involve continuous planning, continuous testing and continuous integration. (don’t under estimate effort to reach this prior to try to be agile)
Thanks to Agile software development, you will be able to accelerates the delivery of initial business value. Through continuous planning and feedback, agile development ensures that value continues to be maximized throughout the development process.
(Version One, 2009)
AntiPattern: "An AntiPattern is a literary form that describes a commonly occurring solution to a problem that generates decidedly negative consequences.
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