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Showing posts from July, 2007

Scrum Vocabulary

A Product Owner compiles all the changes planned for the product and prioritizes the possible functionalities.Sprint is A 1-6 week period in which the delivery team produces (mutually agreed)acceptable product features. Also called Iteration in the Agile methodology.The result of the Product Owner’s work is a Product Backlog. It is a to-do list that is constantly reprioritized. Before each Sprint, the highest prioritized goals are transferred to a Sprint Backlog.Together with a user, the project members form a Scrum Team. During discussions with the Product Owner, the goal of the Sprint is determined and the prioritized functionality is broken down into detailed tasks.The team is self-organized and the members have a joint responsibility for the results.The Scrum Master coaches the development team, removes any possible impediments and constantly works to ensure that the team has the best possible circumstances for realizing the goals fixed for the Sprint.

Scrum in Five Minutes - Executive Summary

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In his blog entry, Jeff Sutherland introduces an exceptionally concise introduction to the Scrum development process, titled "Scrum in Five Minutes" . This document is created by Swedish consulting firm Softhouse, and gives a brief outline of the pieces and players of Scrum in whole 16 pages.



For those to Scrum, such summaries can serve as a useful introduction.

Summaries like this can facilitate comparisons between the various flavors of agile development. Some others available are
visual roadmap of Extreme Programming and
What does Lean Software Development Really Boil Down To?
http://www.softhouse.se/Uploades/Scrum_eng_webb.pdf

What Is Dojo?

Dojo is an Open Source JavaScript UI toolkit. It makes writing JavaScript easier, building great interfaces faster, and deploying dynamic UIs at scale much easier. The foundation of Dojo is "Dojo Base", a single tiny library which contains Ajax, event handling, effects, blazing fast CSS queries, language utilities, and a lot more. On top of this Base, the rest of Dojo Core adds high-quality facilities for Drag and Drop, extended forms of Ajax and I/O, JSON-RPC, internationalization, and back-button handling.

Layered on Dojo Core is a widget system, Dijit, which makes developing and reusing interface components a snap. If you can write HTML and CSS, Dijit allows you to quickly build reusable client-side components. Similarly, Dojo can use extended attributes on HTML in order to declare where widgets should be placed and how to configure them. Placing a graphical date picker in a page is as easy as adding an attribute to an <input> element. By upgrading standard HTML inst…

Yahoo! User Interface Library

The Yahoo! User Interface (YUI) Library is a rich set of utilities and controls, written in JavaScript. It is used for building richly interactive web applications using techniques such as DOM scripting, DHTML and AJAX. The YUI Library also includes several core CSS resources.

The YUI Library components fall into three groups: Utilities, UI Controls, and CSS resources.

YUI Utilities

The YUI Utilities simplify in-browser devolvement that relies on cross-browser DOM scripting, as do all web applications with DHTML and AJAX characteristics. Various utilities are:
EventDom CollectionConnection ManagerDrag & DropAnimation

YUI Controls

The YUI Library Controls provide highly interactive visual design elements for your web pages. These elements are created and managed entirely on the client side and never require a page refresh.

YUI Controls include:
AutoCompleteContainerDataTable ControlLoggerTabViewTreeViewSliderCalendar
YUI CSS Resources
CSS GridsCSS FontsCSS ResetYUI Library is open sourced un…

New Look n Feel

I have started using a new Blogger template called TypoXP 2, all courtesy Ustadz.Net. I think it is an adaptation from Wordpress theme by the same name.
I am liking this new template a lot, especially its color combinations.
Also, it has a widget for Recent Posts. It has expandable post summaries. Author comments are highlighted. I am also liking its sidebar a lot. Just check it out!

http://typoxp.blogspot.com/2007/05/typoxp-blogger-new-blogger-template.html

HTTP Status Codes

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In a web app, whenever there is a communication between the browser (i.e client) and (web) server, there is a back-and-forth transfer of data. The client sends data to Server for processing. Data is then processed at the server side, and a response is sent back to client, indicating the status of the sent request. The response sent by Server to browser, typically, has a status line, some response headers, blank line, and the document, e.g.

HTTP/1.1 200 OK
Content-Type: text/plain

This is an example of status codes.

Here, the first line indicates the HTTP Version (HTTP/1.1), a status code (200) and a short description of status code (ok). Second line consists of the various headers sent by Server. At mimimal, it has a content type. The data after the blank line indicates the document itself, though not all responses may have a document. If a document is present, the content type indicates its MIME type.

Given below is a list of the commonly used status codes. The status codes are all thre…