2002-04

<body stylesrc="index.html" background="images/Bkgrnd02T2.gif"> <table border="0" cellpadding="6" cellspacing="0" width="810"> <tr> <td align="right" valign="top" height="1" width="170"> <p align="center"><img border="0" src="images/Accent03.gif" align="left" width="142" height="37"> </p> <p align="left"><b><font size="2">April 2002 - Vol. 3 No. 4</font></b></p> </td> <td height="1" width="612"> <p align="center">  <a href="index.html" target="_top">[Home]</a> <a href="Newsletters.html" target="_top">[Up]</a> <a href="Dummy-Next-Issue.html" target="_top">[Next]</a> <a href="2002-03.html" target="_top">[Previous]</a></td> </tr> <tr> <td valign="top" height="529" bgcolor="#FFFFCC" width="170"> <font size="2"> <p><a href="#TechTalk"><b>Tech Talk</b></a><br> <a href="#JavaOne 2002">JavaOne 2002</a> </p> <p><a href="#Editorial"><b>Editorial</b></a><br> <a href="#Popular Trojan Horses">Popular Trojan Horses</a><a href="#.NET would open things up?"><br> .NET would open things up?</a> </p> <p><a href="#Book Reviews"><b>Book Reviews</b></a><br> <a href="#CMMI Distilled">CMMI Distilled</a> </p> <p><b><a href="#Humor">Humor</a></b></p> <p><a href="#Trends"><b>Trends</b></a><br> <a href="#Windows XP is in">Windows XP is in</a></font></p> </td> <td height="277" bgcolor="#FFCC99" width="612"> <b> <h1><a name="TechTalk"><font color="#000000">Tech Talk</font></a></h1> <h2><font face="Arial" color="#000000"><a name="JavaOne 2002">JavaOne 2002</a></font></h2> </b> <i> <p>By <a href="Author-RegCharney.html">Reg Charney</a></p> </i><b> <h3><font FACE="Arial"><a name="Impressions">Impressions</a></font></h3> </b> <p>JavaOne has just finished and I attended to see how the other half live. Historically, JavaOne conferences have been fun and exciting, more so than most other conferences that I have attended. This year’s conference was also exciting in some ways. Unfortunately, it was not because of new products.</p> <p>As someone else said, “Last year mobile computing solutions were promised, and this year they were delivered.” Thus, JavaOne was an event showcasing more mature products.</p> <p>Many technical sessions and products concentrated on issues of performance. There were products to optimize code execution, code size, and throughput. In the C/C++ world, most of these concerns are mute. That is, there is still concern for efficient execution, but it is more taken for granted that you can achieve it through better algorithms, not through tweaking how the code is written for a particular VM.</p> <p>Another thing that I noticed was that there is not one VM, but many, each with its own strengths and weaknesses: speed versus size; feature set versus modularity. Also, the Embedded Systems conference was a couple of weeks ago (I did not get a chance to attend). Thus, I was a bit surprised to see the emphasis at the show on embedded Java VMs and devices. Phone companies and computer hardware companies were offering all sorts of developer programs. As I quoted earlier, and just now mentioned, mobile computing was a central focus of much of the show.</p> <p>One of the high points of the show was the special offer to attendees: they could purchase a Sharp Zaurus™ Developer Model SL-5000D with a wireless Network Compact Flash card for $300, about $200 less than you would pay for both on the street. They sold out all 2200 units in a day and a half. It would have taken less time, but the rush created a crowd problem. For those of you who don’t know, or who have been living in the backwoods, the Zaurus is a 64MB PDA that runs Linux and Java natively. The desktop is Qt™ Palmtop from Trolltech®. Based on my experience with my Compaq® iPaq™ version of the same software, the handwriting recognition is terrific—a real pleasure to use. The Zaurus also has a QWERTY keyboard hidden beneath a sliding cover and both a CF and SD slot. It has a TFT color screen. With the wireless network card, you can browse the net, read your email and take handwritten notes while wondering around. I have tried to reproduce a picture of the unit on the next page.</p> <p align="center"><img border="0" src="images/2002-04-Fig01.jpg" width="221" height="501"></p> <b> <p ALIGN="CENTER"><font FACE="Arial">Figure #1: Zaurus with Keyboard exposed showing Qt Palmtop</font></p> <h3><font FACE="Arial">Statistics</font></h3> </b> <p>Attendance at JavaOne conferences has been decreasing in recent years. (see Figure 2).</p> <p align="center"><img border="0" src="images/2002-04-Fig02.gif" width="222" height="160"></p> <b> <p ALIGN="CENTER"><font face="Arial">Figure #2: JavaOne Attendance</font></p> </b> <p>While it is too soon to tell, drop-off in attendance seems to be 20% per year.</p> <div align="center"> <center> <table BORDER="1" CELLSPACING="1" WIDTH="220" bgcolor="#FFFFFF"> <tr> <td WIDTH="20%" VALIGN="TOP" HEIGHT="61"><b><font SIZE="2"> <p ALIGN="CENTER"><br> Year</font></b></td> <td WIDTH="27%" VALIGN="TOP" HEIGHT="61"><b><font SIZE="2"> <p ALIGN="CENTER">#<br> Attendees</font></b></td> <td WIDTH="27%" VALIGN="TOP" HEIGHT="61"><b><font SIZE="2"> <p ALIGN="CENTER">Chg Since 2000</font></b></td> <td WIDTH="27%" VALIGN="TOP" HEIGHT="61"><b><font SIZE="2"> <p ALIGN="CENTER">Chg Since Last Yr</font></b></td> </tr> <tr> <td WIDTH="20%" VALIGN="TOP" HEIGHT="32"><font SIZE="2"> <p ALIGN="CENTER">2000</font></td> <td WIDTH="27%" VALIGN="TOP" HEIGHT="32"><font SIZE="2"> <p ALIGN="CENTER">25,000</font></td> <td WIDTH="27%" VALIGN="TOP" HEIGHT="32"><font SIZE="2"> <p ALIGN="CENTER">100%</font></td> <td WIDTH="27%" VALIGN="TOP" HEIGHT="32"><font SIZE="2"> <p ALIGN="CENTER">100%</font></td> </tr> <tr> <td WIDTH="20%" VALIGN="TOP" HEIGHT="32"><font SIZE="2"> <p ALIGN="CENTER">2001</font></td> <td WIDTH="27%" VALIGN="TOP" HEIGHT="32"><font SIZE="2"> <p ALIGN="CENTER">19,000</font></td> <td WIDTH="27%" VALIGN="TOP" HEIGHT="32"><font SIZE="2"> <p ALIGN="CENTER">76%</font></td> <td WIDTH="27%" VALIGN="TOP" HEIGHT="32"><font SIZE="2"> <p ALIGN="CENTER">76%</font></td> </tr> <tr> <td WIDTH="20%" VALIGN="TOP" HEIGHT="32"><font SIZE="2"> <p ALIGN="CENTER">2002</font></td> <td WIDTH="27%" VALIGN="TOP" HEIGHT="32"><font SIZE="2"> <p ALIGN="CENTER">15,000</font></td> <td WIDTH="27%" VALIGN="TOP" HEIGHT="32"><font SIZE="2"> <p ALIGN="CENTER">60%</font></td> <td WIDTH="27%" VALIGN="TOP" HEIGHT="32"><font SIZE="2"> <p ALIGN="CENTER">79%</font></td> </tr> </table> </center> </div> <b> <p ALIGN="CENTER"><font face="Arial">Figure #3: Attendance Changes</font></p> </b> <p>The conference had 7 session types. They were:</p> <ol> <li>Web Services Today and Tomorrow</li> <li>Java Technologies for the Desktop</li> <li>Emerging Technology</li> <li>Wireless and Handheld Devices</li> <li>Java Technology, Products & Solution</li> <li>Java 2 Platform, Enterprise Edition</li> <li>Core Java Technology</li> </ol> <p>It was interesting to analyze the distribution of session types. There were 304 technical sessions. Using the session type codes, Figure #4 shows the distribution of the types of sessions.</p> <p align="center"><img border="0" src="images/2002-04-Fig04.gif" width="222" height="140"></p> <b> <p ALIGN="CENTER"><font FACE="Arial">Figure #4: Type of Services</font></p> </b> <p>These sessions tend to show Java’s relative strengths: Web services, wireless and handheld devices, and the enterprise. In the Web Services area, XML technologies are a major focal point. In reviewing the topics for the Java Core sessions, I got the impression that most core issues have been resolved. However, in listening to various conversations during the show, I kept hearing concerns about performance issues.</p> <p>Based on their Program Guides, Figure #5 shows the number of technical sessions.</p> <p align="center"><img border="0" src="images/2002-04-Fig05.gif" width="222" height="140"></p> <b> <p ALIGN="CENTER"><font FACE="Arial">Figure #5: # Sessions by Year</font></p> </b> <p>It is heartening to see the rise in sessions after last year’s bloodbath.</p> <p align="center"><img border="0" src="images/2002-04-Fig06.gif" width="222" height="139"></p> <b> <p ALIGN="CENTER"><font FACE="Arial">Figure #6: Co-Sponsors by Year</font></p> </b> <p>The number of major (Platinum) and media co-sponsors has steadily increased. Second tier co-sponsors (Gold and Silver) has dropped off. This usually indicates a consolidation in the marketplace.</p> <p>Figure #7 shows the number of exhibitors and the effects of history. Normally, exhibitors need to reserve their booth space 3-6 months in advance. That would place the reservation dates between September and December 2001. Between the terrorist attack on 9/11 and the recession, not many companies were willing to commit to a show that costs thousands of dollars</p> <p align="center"><img border="0" src="images/2002-04-Fig07.gif" width="219" height="138"></p> <p align="center">.<b><font FACE="Arial">Figure #7: # Vendors by Year</font></p> </b> <p>For the entrepreneurs in the crowd, the most popular names over the last four years at the show start with I, S, A and C from most to least of the top four. The starting letters used least often over the years were X, Y, U and Q. Only 2 companies over the last four years had names starting with X. The same is true for the letter Y. By contrast, 131 companies had names starting with I. A similar number had names starting with S. Names starting with A or C came in a distant third and fourth with 122 and 105 respectively. Adding all the company names over 4 years, we get 1274 names (some repeated across years). It works out that over 20% of all company names start with either an I or an S. This speaks to a certain lack of originality.</p> <b> <h3><font FACE="Arial">Profiles</font></h3> </b> <p>I spoke with Peter Mehlitz, CTO of Transvirtual. You might remember them as the folks who produced Pocket Linux a couple of years back. They no longer sell it and I asked Peter why not. While I believe the bottom line is that it did not pay for itself, they had a different take. In fact, one I think that we all can learn from. Even though Pocket Linux as a whole may not have sold that well, it was a good basis for a series of products created when its components were sold separately. One of their primary products is XGL. It is a tiny, 60KB, graphics library capable of using the CPU as the graphics engine, independent of graphics cards.</p> <p>I had a similar experience. We once developed a program generator that sold only moderately. On investigation, we found that some of our customers where using the product to pretty-print their source code. We then split our main product up and sold the pretty printer as a standalone product. It sold more units than our main product.</p> <p>I also interviewed Gerardo Dada of Metrowerks. They produce the excellent CodeWarrior IDE and compiler products. They work with many embedded manufacturers. Gerardo’s take was that “many manufacturers are turning to Linux”. I believe it is to control the costs of software in their devices.</p> <p>I said at the start last month’s piece that this was intended to be an introduction to the topic. I don’t claim to have all the answer, nor indeed the answers for your project. However there are a few snippets of advice I can offer:</p> <ul> <li>Ensure you team have a clear idea of what you are doing with characters</li> <li>Work with your language features as much as you can: modern C++ is good here, but it is not perfect</li> <li>Keep you data in a consistent encoding</li> <li>Define an API string type which matches the character encoding your OS wants, then provide functions to convert strings to and from, in other words: hide the data type behind an abstraction</li> <li>Name functions in terms of their result not their internals: e.g. <font FACE="Courier New">MakeWide </font>rather than <font FACE="Courier New">NarrowToWide</font></li> <li>Use overloaded functions to provide a multiplicity of functions, include redundant features so developers don’t have to stop and thing about the data type, these can be optimised later: e.g. <font FACE="Courier New">MakeWide</font>(<font FACE="Courier New">const std::string&</font>), <font FACE="Courier New">MakeWide</font> (<font FACE="Courier New">const char</font>*), <font FACE="Courier New">MakeWide</font> (<font FACE="Courier New">const wchar_t</font>*)</li> </ul> <b><i> <h3>References</i>:</h3> </b> <ul> <li>Markus Kuhn has a good FAQ : <a href="http://www.cl.cam.ac.uk/~mgk25/unicode.html">www.cl.cam.ac.uk/~mgk25/unicode.html</a></li> <li>Linux Doc How-to discusses making your programs Unicode aware <a href="http://www.linuxdoc.org/HOWTO/Unicode-HOWTO-6.html">www.linuxdoc.org/HOWTO/Unicode-HOWTO-6.html</a></li> <li>For Microsoft OS the MSDN article “Unicode and MBCS” is a good place to start.</li> <li>Sun has a white paper on Unicode at <a href="http://www.sun.com/software/white-papers/wp-unicode/">www.sun.com/software/white-papers/wp-unicode/</a>.</li> <li>RFC Document can be found at <a href="http://www.landfield.com/rfcs/rfc2781.html">www.landfield.com/rfcs/rfc2781.html</a></li> </ul> <b> <h1><font color="#000000"><a name="Editorial">Editorial</a></font></h1> </b> <i> <p>By <a href="Author-RegCharney.html">Reg. Charney</a></p> </i><b> <h2><font FACE="Arial"><a name="Popular Trojan Horses">Popular Trojan Horses</a></font></h2> </b> <p>I use my computer to play my CDs while I work. I didn’t know is very time I play a CD track that, by default, data is sent to the software vendor.</p> <p>I discovered this be accident. On my Windows 98 machine, I run a terrific program called Naviscope™ (www.naviscope.com) to block ads. It also monitors my Internet traffic.</p> <p>I just installed RealOne™ Player from RealNetworks™, Inc. on my Windows 98 machine and was ripping a set of my CDs to hard disk. I then started playing them from the hard disk and noticed that each time a track was played, I got Internet activity. As good luck would have it, Naviscope captured this activity and I was able to surmise that data was being sent from my machine to Real’s servers without my knowing it.</p> <p>Ryc Brownrigg, General Manager for Consumer Products for RealNetworks said that the program can suppress sending any personal or CD information out. However, this information is sent by default because “so many people like the service of looking up information in the CDDB database”. He did back that up with figures. In the last 3 months, page views of CD related information had gone from 300K to 1.7MM per day. He told me that no personal information was sent and minimal logging was done. Only information most people want on the details of their albums and CD tracks was sent. I happen to be one of the “few” who value privacy over convenience.</p> <b> <h2><font FACE="Arial"><a name=".NET would open things up?">.NET would open things up?</a></font></h2> </b> <p>Microsoft’s "click" license for Windows Media Player 7.1 says “You may not disclose the results of any benchmark test of the .NET Framework component of the OS Components to any third party without Microsoft’s prior written approval.” Thus, if using .NET harms you, are you not supposed to warn other potential victims? Reminds me of how child molesters threaten their victims.</p> <b> <h1><font color="#000000"><a name="Book Reviews">Book Reviews</a></font></h1> </b> <i> <p><b><a name="CMMI Distilled">CMMI Distilled</a></b></i> by Dennis M. Ahern, Aaron Clouse, Richard Turner, Addison-Wesley, ISBN 0-201-73500-8</p> <i> <p>Recommendation</i>: Skip it</p> <p>If you are having trouble falling asleep, read this book. It will put you to sleep in minutes. I gave up on this book about half way through. It is written in a very dry, academic style. It is extremely difficult reading. Skip the text and go straight to the Appendices. The Appendices contain summaries of the CMMI models and are easier to read and understand then the text.</p> <p>The Capability Maturity Model is a very interesting concept, and I think every programmer can get something out of CMM even if the entire model is not adopted. However, this book does not explain the CMM system in a clear, understandable way. I do not recommend this book.</p> <i> <p>— Bob Brander</p> <b> <h1><font color="#000000"><a name="Humor">Humor</a></font></h1> </b></i> <p>Five cannibals get appointed as engineers in a defense company.</p> <p>During the welcoming ceremony the boss says, “You're all part of our team now. You can earn good money here, and you can go to the cafeteria for something to eat. So please don't trouble any of the other employees.”</p> <p>The cannibals promise to be good.</p> <p>Four weeks later the boss returns and says, “You're all working very hard, and I'm very satisfied with all of you. However, one of our janitors has disappeared. Do any of you know what happened to him?”</p> <p>The cannibals all shake their heads no.</p> <p>After the boss has left, the leader of the cannibals says to the others, “Which of you idiots ate the janitor?” A hand raises hesitantly, to which the leader of the cannibals replies, “You fool! For four weeks we’ve been eating IPT leaders, project engineers and program managers and no one noticed anything, and you have to go and eat the janitor!”</p> <i> <b> <h1><font color="#000000"><a name="Trends">Trends</a></font></h1> </b> <p>By <a href="Author-AliCehreli.html">Ali Çehreli</a></p> </i> <b><font FACE="Arial"> <h2><a name="Windows XP is in"> Windows XP is in</a></h2> </font></b> <p>I have been talking about presenting Windows XP data for a number of months now. We finally have some data that we believe is untainted. Earlier, we had been mixing Extreme Programming jobs with Windows XP jobs. The only trusted two data points we have for Windows XP are 40 jobs in February, and 52 jobs in March. I think this is very impressive given the prolonged hopefully-at-the-rock-bottom state of the job market (Figures 1 and 2).</p> <p align="center"><img border="0" src="images/2002-04-Fig01a.gif" width="391" height="304"></p> <p align="center"><img border="0" src="images/2002-04-Fig02a.gif" width="392" height="328"></p> <p>I am glad that the XP data is in this month. Otherwise there would be almost nothing different to say from last month. The ASIC technology remains the most trendy but is going slowly out of demand (Figure 3).</p> <p align="center"><img border="0" src="images/2002-04-Fig03a.gif" width="331" height="257"></p> <p>Repeating the phrase “the drop is dropping” to describe the job market has grown boring. This month, “the drop in drop has dropped” and I think it means “no change” (Figure 4).</p> <p align="center"><img border="0" src="images/2002-04-Fig04a.gif" width="326" height="253"></p> </td> </tr> </table> </body>