ISSUES IN WEB FRAMEWORKS Tim Bray Director of Web Technologies Sun Microsystems Big Hot Issues Maintainability Scaling Developer Developer Tools Speed Intrinsic Integration In-Stack “Web 2.0” Identity External Issues in Scaling Observability Load balancing File I/O CPU Shared-nothing DBMS Issues in Developer Speed Compilation File I/O step? Code Size Deployment step? Configuration process Issues in Developer Tools Templating IDE How many tools? O/R Mapping Documentation Performance Issues in Maintainability MVC Code size Language count Object Readability orientation Comparing Intrinsics PHP Rails Java Scaling Dev Speed Dev Tools Maintainability Comparing Intrinsics Which is most PHP Rails Java important? Scaling Dev Speed Dev Tools Maintainability The Identity Problem The usual approach: “Make a Integration, SOA, USERS table.”and Web Services Integration, SOA, and Web Services Integration, SOA, and Web Services Stack Integration Options Download & Integration,Vendor- SOA, build: Apache, andintegrated Web Services PHP, MySQL, LAMP stack. add-on packages. Integration, SOA, and Web Services Apache, MySQL, PHP, Perl, Squid cooltools.sunsource.net/coolstack/index.html External integration Issues PHP will never go away. Rails will never go away. Java will never go away. .NET will never go away. The network is the computer. The network is heterogeneous. How do we get work done? SOA: WS-* is the Official Answer 36 specs, about 1,000 pages total. (msdn.microsoft.com/webservices/webservices/understanding/specs/default.aspx) Is WS-* A Little Bit Too Complex? SOA: An Alternative View Web Services: The Alternative Be like the Web! The theory: REST (Representational State Transfer). The practice: XML + HTTP. In action today at: Google, Amazon, AOL, Yahoo!, many others. One way or another, we have to integrate. “Web 2.0” “Web 2.0” $3000 $375 “Web 2.0” Read/Write Web Thank You! [email protected] www.tbray.org/ongoing/ this talk: www.tbray.org/talks/php.de.pdf.