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Contents contributed and discussions participated by Paul Merrell

Paul Merrell

InfoQ: Google Wave's Architecture - 0 views

  • Operational Transformation

    This is the crucial part of Wave’s technology. Google Wave makes extensive use of Operational Transformations (OT) which are executed on the server. When an user edits a collaborative document opened by several users, the client program provides an Optimistic UI by immediately displaying what he/she types but it also sends the editing operation to the server to be ratified hoping that it will be accepted by the server. The client waits for the server to evaluate the operation and will cache any other operations until the server replies. After the server replies, all cached operations are sent from client to server in bulk. The server, considering operations received from other clients, will transform the operation accordingly and will inform all clients about the transformation, and the clients will update their UI accordingly. Operations are sent to the server and propagated to each client on a character by character basis, unless it is a bulk operation. The server is the keeper of the document and its version is considered the “correct” version. In the end, each client will be updated with the final version received from the server, which is the result of possibly many operational transformations. There are recovery means provided for communication failure or server/client crash. All XML documents exchanged between the client and the server carry a checksum for rapid identification of miscommunications.

Paul Merrell

Google Wave Developer Blog - 0 views

    A must-see video if you're interested in the dance of sugar plum documents, what can be done with HTML5-plus, and an outside-the-box approach to online collaboration. Google just may have a winner in Wave.
Paul Merrell

Chrome Experiments - Home - 0 views

    Page after page of links to experiments using advanced features of the Webkit-based Google Chrome. But update to Chrome 2.x before playing.
    Flash just died. Webkit and HTML-plus are the winners.
Paul Merrell

Obama Set to Create 'Cyber Czar' Position - - 0 views

  • WASHINGTON -- President Barack Obama will announce on Friday the creation of a "cyber czar" position, stepping up his administration's efforts to better protect the nation's computer networks.

    The White House appointment will be followed in coming days by the formal creation of a new military cyber command that will coordinate the defense of Pentagon computer networks and improve U.S. offensive capabilities in cyberwarfare.

  • The cybersecurity chief will report to both the National Security Council and the National Economic Council, a compromise resulting from a fierce White House turf battle over the responsibilities and powers of the new office.

    Mr. Obama won't announce on Friday the person who will fill the new job. That isn't expected for at least a few more days.

Paul Merrell

Christine A. Varney to Participate in Eighth Annual International Competition Network C... - 0 views

  • Christine A. Varney, Assistant Attorney General in charge of the Department's Antitrust Division, will participate in the eighth annual International Competition Network (ICN) conference in Zurich, Switzerland, from June 3-5, 2009. At the conference, senior government antitrust officials, private-sector antitrust experts from around the world, and representatives from intergovernmental organizations will meet to discuss competition issues.
  • The ICN conference will focus on the recent accomplishments of its five substantive working groups which address: unilateral conduct, mergers, cartels, advocacy and competition policy implementation. Conference panels will include discussions on proposed Recommended Practices for Substantive Merger Analysis and the analysis of tying and discounting arrangements, and will promote the general exchange of views regarding competition law and policy among the participants. Members also will finalize work programs for the coming year.
  • In October 2001, the Department of Justice and the Federal Trade Commission (FTC) joined with antitrust agencies from 13 other jurisdictions around the world (Australia, Canada, the European Union, France, Germany, Israel, Italy, Japan, Korea, Mexico, South Africa, the United Kingdom and Zambia) to create the ICN. The ICN now includes 107 member agencies from 96 jurisdictions. The goal of the ICN is to provide a forum for antitrust agencies to address antitrust enforcement and policy issues of common interest and formulate proposals for procedural and substantive convergence through a results-oriented agenda and structure.
    Look for more Obama Administration antitrust policy announcements to flow from the June 3-5 conference announced here. This is the annual conference where antitrust policy changes can be announced to all competition regulators globally. The Obama Administration will not waste that opportunity.
Paul Merrell

Opera: Web standards could eclipse Flash - - 0 views

  • The next revision of the HTML web language will make Adobe's Flash technology largely redundant, according to the chief executive of browser company Opera.

    The open web standards included in HyperText Markup Language version 5 (HTML 5) provide a viable alternative to Adobe's proprietary Flash for the delivery of rich media web content, Jon von Tetzchner told ZDNet UK on Wednesday.

  • Von Tetzchner said that HTML 5's handling of rich media meant that Flash — Adobe's ubiquitous, proprietary multimedia platform for the web — is becoming largely unnecessary. "You can do most things with web standards today," von Tetzchner said. "In some ways, you may say you don't need Flash."
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