Creating Reliable Software (pdf)

Grok Headline matches for Creating Reliable Software (pdf)

Developing Reliable Software with
Scripting Languages

Developing Reliable Software with
Scripting Languages 12/18/2002 12:08 PM
In this interview of William Guttman, a professor of economics and technology at Carnegie Mellon University who is director of The Sustainable Computing Consortium, I was struck by this statement: Q: Are certain types of products or software vendors worse than others in terms of their record on quality? Guttman: I have a colleague who says bugs are agnostic. No matter the type of application it is, you can count on finding 30 bugs per 1,000 lines of code on average. I then found Prof. Thomas Huckle, saying much the same thing: INTEL: no more than 80-90 Bugs in Pentium. Standard Software: 25 bugs per 1000 lines of program. Good Software: 2 errors per 1000 lines. Space Shuttle Software: This seems to be a pretty good justification for using scripting languages. Of course, we still need to plan and be aware of the software engineering issues in developing reliable software. Here are a few things that occured to me. I'm sure you can think of more: 1. Scripting makes it too easy to slap up a piece of code quickly. I would suggest you slap your design first. Use a design methodology. The use of popular techniques such as OOP (or structured programming) provides a more disciplined approach to developing software. Informal evidence suggests that using object-oriented programming forces the developer to be more careful in the design of the software. Scripting languages that provide good OOP facilities should be encouraged. 2. Scripting languages have more options than bisexuals because they have polymorphic types (I have never liked the term weak-typing because it suggests something inferior. I prefer polymorphic typing -- it has the cachet of a poly-syllable adjective :-). One of the criticism with this approach is that very little parameter checking is done by the compiler. To me this is a benign vice, but I agree that with large teams where well-defined interfaces are important that this is an issue. I have three suggestions here: (a) Use classes to store important variables, because then you can use set and get methods for type-checking, and pass instances of these classes around instead of variables. To promote heterosexuality i have this example: function Reproduction($father,$mother) { $sperm = $father->GetSperm(); $egg = $mother->GetEgg(); return "$sperm meets $egg"; } In the above example, we have type checking of $father and $mother (at run-time), because $father has GetSperm() and $mother must have GetEgg(). (b) Use intelligent IDE's that display the function prototypes as you type (what is the best one for PHP - does anyone know?) (c) Programming by contract. Techniques such as this provide additional assurance about the quality of the code (note that programming by contract is as applicable to C or Java or Fortran as scripting languages). See also what Bertrand Meyer has to say. 3. Scripting languages need fewer raging egos and more team players. What i mean by this is that scripting languages need to balance the needs of hackers who want a quick fix with software managers who need good support for team development, in particular offering effective ways (methodologies?) for separating code and content, data and presentation, and neat software engineering concepts such as data hiding and namespace support. In conclusion, as Tom DeMarco pointed out in his book PeopleWare, it is not technology that prevents software success, but people. So higher level tools that aid people in their work are to be encouraged. Looking down at scripting languages because it lacks this or that is short sighted because it is the now and the future of computing. "tri" I've been drafting this essay for a while (this is my response to the Bertrand Meyer quote on pointer arithmetic and reliability), and it looks like the recent Multi-Tier debate makes it a good time to release it, even though i think that it could still do with some more shaving and fine-tuning. "zeldman.shaver2"

Visual Studio 2005 Team System: Building
Robust and Reliable Software

Visual Studio 2005 Team System: Building
Robust and Reliable Software 06/03/2004 12:43 AM
To develop robust and reliable software, developers need an integrated set of analysis tools that help them in detecting code defects and performance problems earlier in the development cycle.

SkySof Software Releases PDF Maker DLL
for Software Developers - a Powerful
ActiveX DLL for Creating and Editing PDF
Files and much more

SkySof Software Releases PDF Maker DLL
for Software Developers - a Powerful
ActiveX DLL for Creating and Editing PDF
Files and much more 06/22/2005 03:01 AM
PDF Maker DLL is a powerful ActiveX Dynamic Link Library for software developers. PDF Maker DLL gives programmers full control over creating high-quality, professional Adobe® Acrobat® PDF files from virtually any file type. [PRWEB Jun 22, 2005]

Creating software on demand

Creating software on demand 01/26/2004 02:20 AM
Boston Globe Jan 26 2004 7:07AM GMT

How To: Creating Group Policies for
Software Distribution

How To: Creating Group Policies for
Software Distribution 05/22/2004 01:59 PM

Organize your way to Internet Riches – A
Florida software programmer has
developed a brand new product designed
to help those who are ready to make
money starting today creating
information products.

Organize your way to Internet Riches – A
Florida software programmer has
developed a brand new product designed
to help those who are ready to make
money starting today creating
information products. 06/10/2004 02:46 AM
Success Products announced the release of its new software program, Swipe’nSave. This program promises to save Internet entrepreneurs significant time in researching and compiling information for ebook publication. [PRWEB Jun 10, 2004]

to be quite reliable:

to be quite reliable: 01/06/2005 07:49 PM
Bush Rejects Bad News .. The Nelson Report

airamericaradio.com/weblogs/alfrankenshow/index.php?/franken/ bush_rejects_bad_news
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When Computing Was Reliable

When Computing Was Reliable 03/19/2003 10:27 PM
Last week, vendors of some high-profile open source products were taken to task for newly discovered flaws in their code that required yet another round of software patching. In the rush to embrace complexity, computer users have given up some of the most important computing tools of the last 50 years.

Proc-Reliable-1.15

Proc-Reliable-1.15 11/14/2003 04:42 AM

Wikipedia, a reliable source?

Wikipedia, a reliable source? 06/01/2004 05:29 PM
Wik ipedia as Participatory Journalism: Reliable Sources? (pdf file) From the 5^th international Symposium on Online Journalism comes this rather interesting analysis of the Wikipedia both as a news source and as a living draft of history. A surprisingly readable article.

Windows more reliable than Linux?

Windows more reliable than Linux? 04/06/2005 06:18 PM

I know what your thinking and I was thinking the same thing, who paid for the study to prove this. You guessed Microsoft did. Interesting read but I am sure that those of you that are hard core Linux users will contest their results.

As a side note. The dedicated server that I have for this websites has had pretty terrible reliability and requires re-booting every couple of days. But a old die-hard Windows NT box that I have running similar services for some other websites I have gets re-booted every 90 days whether it needs it or not. So thus far I am not drinking the Linux Kolaid. [eWeek]

Only reliable phones need apply

Only reliable phones need apply 03/19/2003 10:41 PM
Timothy Appnel: There are zero occurrences of the word asynchronous in the current JSR 172 (J2ME Web services) draft specification.

that it provides a thoroughly reliable
fact-check function

that it provides a thoroughly reliable
fact-check function 09/15/2004 08:56 PM
Tech Central Station Notes Carter Peace Center Failure .. further lessons:

techcentralstation.com/091504H.html
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Web Host OLM.net Received Most Reliable
Award

Web Host OLM.net Received Most Reliable
Award 04/14/2005 02:12 AM
OLM Has Been Named Among Top Three Most Reliable Web Hosts For March By Independent Review Panel Netcraft. [PRWEB Apr 14, 2005]

Microsoft: Windows More Reliable than
Linux

Microsoft: Windows More Reliable than
Linux 04/06/2005 09:56 AM
Extreme Tech Apr 6 2005 1:36PM GMT

Dysons are the least reliable vacuums, a
report claims

Dysons are the least reliable vacuums, a
report claims 05/06/2004 08:40 AM
BBC May 6 2004 12:51PM GMT

Fed panel hears e-vote not fully
reliable

Fed panel hears e-vote not fully
reliable 05/06/2004 12:16 AM
Boston Globe May 6 2004 4:26AM GMT

New Spec Makes Bluetooth Faster, More
Reliable

New Spec Makes Bluetooth Faster, More
Reliable 11/07/2003 03:13 AM
The Feature Nov 7 2003 2:05AM ET

There's loads of medical data on
Internet, but is it reliable?

There's loads of medical data on
Internet, but is it reliable? 12/26/2004 07:28 AM
Staronline.com - Sun Dec 26, 09:25 am GMT

Rumor sites see drop in reliable sources

Rumor sites see drop in reliable sources 03/22/2005 03:31 PM
Earlier this month, a California judge ruled that Apple has the right to subpoena the records of the three Macintosh sites that recently published details on an unreleased Apple product. Apple filed a lawsuit against anonymous individuals who leaked details about new products by posting information on the Internet in December. In the company's seven-page civil complaint, Apple said that it did not know the "true names or capacities, whether individual, associate, corporate or otherwise," of the defendants. The Santa Clara County Superior Court Judge ruled that Apple's interests in protecting trade secrets outweighed any interest the public may have in the information. "The public has had, and continues to have, a profound interest in gossip about Apple," Judge James P. Kleinberg said. "Therefore, it is not surprising that hundreds of thousands of 'hits' on a Web site about Apple have and will happen. But an interested public is not the same as the public interest." Though only three rumor sites are involved in the litigation, other rumor sites have recently seen the number of reliable anonymous sources drop. "We noticed that some of our annonymous sources, which were informing us with reliable information on Mac OS X development, stopped sending us information," Alexandros Roussos of MacosXrumors told Spymac. With increased interest and demand for Apple rumors, many of these sites are receiving a surge of information from more sources. This increase of information increases the amount of unreliable information the sites receive, so sites have to be more careful about what they publish. "The site has been very successful since the beginning but really saw its traffic exploding during 2004, when we started daily news and rumours reporting," Roussos said. "Along with the success, more and more sources appeared but there were a lot more fake rumors too. We do our best to verify the information we receive by discussing it with some regular sources or by comparing with other reports and other factual information found on documentation or corporate sites." MacosXrumors has improved its source reliability since its early days but, according to Roussos, there is still more work to do. "Sometimes we are frustrated when we have taken too much time to verify our rumors and we see the story breaking elsewhere though. Now it's really an investigation job. It's easier to do for us than it used to be when the site was launched, as we have more sources and experience, but it takes much more time than it did." Stay tuned next week to find out more about how operations on other rumour sites are being influenced by recent litigations against Apple rumor sites.

Study Finds Windows More Reliable than
Linux

Study Finds Windows More Reliable than
Linux 04/06/2005 11:56 AM
A Microsoft-sponsored study finds Windows Server 2003 is more reliable and robust and allows IT administrators to execute various tasks more quickly than those using Red Advanced Server 3.0 running on the same hardware.

Microsoft, IBM, BEA and TIBCO Announce
Reliable Messaging Specifications

Microsoft, IBM, BEA and TIBCO Announce
Reliable Messaging Specifications 03/13/2003 05:01 PM

"Care to elaborate on that slam on
Redwood Virtual? They‘re more
reliable..."

"Care to elaborate on that slam on
Redwood Virtual? They‘re more
reliable..." 12/27/2004 06:03 PM

Reliable Controls Donates to Penn
Colleges BBT Program

Reliable Controls Donates to Penn
Colleges BBT Program 04/15/2004 09:09 PM
BC Technology Apr 16 2004 1:17AM GMT

Uploading accounting records from books
to computers, how reliable is it?

Uploading accounting records from books
to computers, how reliable is it? 08/01/2004 04:59 PM
Lanka Business Online Aug 1 2004 8:44PM GMT

Fast, Secure and Reliable, 3G and VoIP
Network Protection

Fast, Secure and Reliable, 3G and VoIP
Network Protection 04/06/2005 05:14 AM
3G Apr 6 2005 7:46AM GMT

Researchers develop reliable laptop
battery gauge

Researchers develop reliable laptop
battery gauge 12/27/2004 07:17 PM
globetechnology.com Dec 27 2004 11:13PM GMT

Internet.com and ISP-Planet Call
VisNetic MailServer A Strong, Reliable
Performer

Internet.com and ISP-Planet Call
VisNetic MailServer A Strong, Reliable
Performer 12/19/2004 03:33 PM
Playing up its rich and highly configurable feature set, Jim Thompson, a reviewer for ISP-Planet and Internet.com, calls VisNetic MailServer a good choice for the complex messaging environments typical of ISPs. [PRWEB Dec 10, 2004]

Firestreamer-DV Turns Digital Video
Camcorders and VCRs into Reliable
Computer Data Storage Devices

Firestreamer-DV Turns Digital Video
Camcorders and VCRs into Reliable
Computer Data Storage Devices 02/01/2005 09:13 PM
Cristalink Limited released a new version of Firestreamer-DV, software that converts Digital Video camcorders and VCRs into reliable computer data storage devices. Firestreamer-DV enables the Windows Backup to access DV recorders just like normal tape drives. [PRWEB Feb 1, 2005]

Wikipedia as Participatory Journalism:
Reliable Sources? Metrics for evaluating
collaborative media as a news resource

Wikipedia as Participatory Journalism:
Reliable Sources? Metrics for evaluating
collaborative media as a news resource 06/02/2004 07:58 PM
Ce document en .pdf

journalism.utexas.edu/onlinejournalism/wikipedia.pdf
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Arjuna Announces OEM Agreement With
webMethods; Agreement Delivers Reliable
Support for Web Services Transacti

Arjuna Announces OEM Agreement With
webMethods; Agreement Delivers Reliable
Support for Web Services Transacti 04/05/2005 06:16 AM
ZDNet India Apr 5 2005 10:25AM GMT

PatchMaker 2D-motion tracker: most
accurate and reliable tracker ever made

PatchMaker 2D-motion tracker: most
accurate and reliable tracker ever made 05/31/2004 01:45 PM
Pixmart LLC is proud to announce PatchMaker ? its new smart 2D-motion tracking and stabilizing tool. Its outstanding performance and low price ($256) make it a must for any postproduction studio big or small. PatchMaker is run as a standalone application but can also work in concert with Adobe After Effects. A FREE demo, with lots of samples (including project samples) and detailed documentation can be downloaded from http://patchmaker.net/enu/downloads.php [PRWEB May 30, 2004]

Broadlook--#1 CRM Software
Solution--Empowers your CRM Software and
fill your CRM Software with contact
management relationships.

Broadlook--#1 CRM Software
Solution--Empowers your CRM Software and
fill your CRM Software with contact
management relationships. 06/18/2004 03:03 AM
Whichever CRM software your company uses, you need to look at the Broadlook Suite of Software which should seamlessly integrate with whichever CRM software you are using. BroadLook is an integrated set of applications designed to harness the Internet as a powerful real-time data source--the data from which can be exported into your CRM software. [PRWEB Jun 18, 2004]

ION-MP Outdoor Wireless Network Solution
Provides Faster and More Reliable
Wireless Network for Dallas Fort Worth
Auto Dealership

ION-MP Outdoor Wireless Network Solution
Provides Faster and More Reliable
Wireless Network for Dallas Fort Worth
Auto Dealership 01/06/2005 04:31 AM
ION, Inc, a wireless network solutions provider, upgrades John Eagle Dealership’s outdoor wireless network, improving throughput and reliability and eliminating monthly equipment lease costs. [PRWEB Jan 6, 2005]

Creating a CAP

Creating a CAP 07/02/2004 04:38 PM

Adobe to buy Macromedia in $3.4 billion
stock deal - Computer Software -
Internet Software - Software - Internet
- Company Announcements - Earnings - M&A

Adobe to buy Macromedia in $3.4 billion
stock deal - Computer Software -
Internet Software - Software - Internet
- Company Announcements - Earnings - M&A 04/19/2005 04:29 AM
Adobe Systems To Buy Macromedia .. schluckt

marketwatch.com/news/story.asp?guid=%7B3B04AC26-E1ED-4FA3-8 E72-9C493CADC469%7D&dist=rss&siteid=mktw
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Creating the SP2 Image

Creating the SP2 Image 04/10/2004 05:59 PM

Creating a Buzzzz

Creating a Buzzzz 05/16/2004 11:52 PM
Boston Globe May 17 2004 4:17AM GMT

Creating a Shortcut to the MMC

Creating a Shortcut to the MMC 01/06/2004 09:22 AM

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Creating Reliable Software (pdf)

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