Metrics

Document Actions

Everything can be measured in some way that is better than not measuring it at all.

I recently got in my mailbox a question from a non-programmer wanting to know how to estimate how much time and effort it would take for him to solely develop a new idea for a web application.

Oh goodness, what a loaded question!

In general, individual developers and even teams of developers all work differently. What one person can finish in a week another may take a month. What one team and complete in a month, another takes a year.

To that end, looking at historical data is really the best way of estimating how much time and effort will be required towards completing a project, including its projected costs, defect rate, and schedule.

I myself follow the Personal Software Process (PSP), a system developed at Carnegie-Mellon, to gather such data and track it over time. As a result I can usually estimate the time/cost/defects of my future projects with good accuracy; after all, we are creatures of habit, and it takes quite a bit of change to effect change in the quality of our products. (As an aside, my productivity from C++ to Java tripled; from Java to Python tripled again!) Yet if you lack such data, then making these guesses will be quite challenging.

Still, there's no time like today to start gathering metrics. Try building some smaller software systems, then look at the time it took you, and the size of the programs in lines of code (lines of code, or LOC, is a terrible metric for program complexity, but no one's yet come up with a better one, and as Gibbs once said, "Everything can be measured in some way that is better than not measuring it at all."). For your ultimate project, look at aspects of smaller projects that are similar to what you want to accomplish. Use the productivity rates from those tasks to estimate the time it will take, and the defect rate from those tasks to estimate how many bugs you'll face.

(Oh, I happen to offer training courses in PSP.)

Wednesday, August 22, 2007 in Professional | Permalink |

Program Complexity

Posted by Anonymous User at 2008.04.03 08.59PM

McCabe's Cyclomatic Complexity (http://en.wikipedia.org/wiki/Cyclomatic_complexity) is probably a better measure for code complexity than LOC.

cheap uggs online

Posted by Anonymous User at 2009.12.13 07.16AM

ugg outlet

cheap uggs online

nike basketball shoes

UGG Ultra Short boots

Penny Hardaway

ghd hair sales

Posted by Anonymous User at 2009.10.05 03.45AM

I've tried GHD MK4 Kiss a lot... the texture of my hair has a combination of wavey frizz, and this does WONDERS! GHD MK4 Gold, GHD MK4 Gold Hair Straighteners On Sale. The GHD MK4 Black Hair Straighteners are all highest quality and lowest price. Save 50%. GHD MK4 Kiss, GHD MK4 Kiss Hair Straighteners On Sale. It is legit. It is one of the best ones I've used. I have very curly hair and it ends up soft and smooth with the GHD. Netbooke.com is the first online store sell netbooks, such as ausa netbook,hp netbook,sony netbook

it certr

Posted by Anonymous User at 2009.10.06 04.24AM

Pass4sure is your best choice for any IT certifications because of its high quality. It provides full-scale study materials, including the questions, answers and pinpoint explanations supplied by a group of IT experts. Its considerate

it certr

Posted by Anonymous User at 2009.10.06 04.27AM

Pass4sure is an expert in providing the most valuable training materials for IT certification exams, equipped with accurate exam questions and verified answers, considerate & warmhearted service and complete safeguard measures. The Affiliate Program is a marketing strategy that Pass4sure adopts to assemble more dealers for propaganda and profit.
The Most Popular Vendors List :
<a href="http://www.pass4sure.com/Microsoft-index.html">Microsoft exams</a> | <a href="http://www.passforsure.co.uk/SUN-Certifications.html">SUN exams</a> | <a href="http://www.pass4sure.com/SUN-index.html">SUN exams</a> | <a href="http://www.pass4sure.com/IBM-index.html">IBM certifications</a> | <a href="http://www.passforsure.co.uk/HP-Certifications.html">HP exams</a> | <a href="http://www.passforsure.co.uk/Nortel-Certifications.html">Nortel certifications</a> | <a href="http://www.passforsure.co.uk/HP-Certifications.html">HP certifications</a> | <a href="http://www.passforsure.co.uk/HP-Certifications.html">HP exams</a> |
The Most Popular Certifications List :
<a href="http://www.passforsure.co.uk/CCNP-Certifications.html">CCNP certifications</a> | <a href="http://www.passforsure.co.uk/CCDE-Certifications.html">CCDE certifications</a> | <a href="http://www.passforsure.co.uk/CCDA-Certifications.html">CCDA certifications</a> | <a href="http://www.pass4sure.com/CCIE.html">CCIE exams</a> | <a href="http://www.passforsure.co.uk/CCNP-Certifications.html">CCNP certifications</a> | <a href="http://www.passforsure.co.uk/SCSA10-Certifications.html">SCSA 10 certifications</a> | <a href="http://www.pass4sure.com/CCSP.html">CCSP exams</a> | <a href="http://www.pass4sure.com/CCNP.html">CCNP exams</a> | <a href="http://www.passforsure.co.uk/CompTIA-Linux+-Certifications.html">CompTIA Linux+ exams</a> | <a href="http://www.passforsure.co.uk/MCDST-Certifications.html">MCDST certifications</a> |
The Most Popular exams List :
<a href="http://www.passforsure.co.uk/642-825.html">642-825</a> | <a href="http://www.passforsure.co.uk/70-566(CSharp).html">70-566</a> | <a href="http://www.passforsure.co.uk/642-892.html">642-892</a> | <a href="http://www.passforsure.co.uk/350-029.html">350-029</a> | <a href="http://www.passforsure.co.uk/70-565(VB).html">70-565</a> | <a href="http://www.passforsure.co.uk/70-566(VB).html">70-566</a> | <a href="http://www.passforsure.co.uk/sk0-002.html">sk0-002</a> | <a href="http://www.passforsure.co.uk/70-564(VB).html">70-564</a> | <a href="http://www.passforsure.co.uk/70-680.html">70-680</a> | <a href="http://www.passforsure.co.uk/70-569(CSharp).html">70-569</a> | <a href="http://www.passforsure.co.uk/220-601.html">220-601</a> | <a href="http://www.passforsure.co.uk/70-567(VB).html">70-567</a> | <a href="http://www.passforsure.co.uk/640-863.html">640-863</a> | <a href="http://www.passforsure.co.uk/70-567(CSharp).html">70-567</a> | <a href="http://www.passforsure.co.uk/70-565(VB).html">70-565</a> | <a href="http://www.passforsure.co.uk/70-503(VB).html">70-503</a> | <a href="http://www.passforsure.co.uk/70-566(CSharp).html">70-566</a> | <a href="http://www.passforsure.co.uk/70-655.html">70-655</a> | <a href="http://www.passforsure.co.uk/642-892.html">642-892</a> | <a href="http://www.passforsure.co.uk/640-460.html">640-460</a> | <a href="http://www.passforsure.co.uk/70-562(CSharp).html">70-562</a> | <a href="http://www.passforsure.co.uk/70-567(VB).html">70-567</a> | <a href="http://www.passforsure.co.uk/70-680.html">70-680</a> | <a href="http://www.passforsure.co.uk/n10-003.html">n10-003</a> | <a href="http://www.passforsure.co.uk/642-873.html">642-873</a> | <a href="http://www.passforsure.co.uk/70-450.html">70-450</a> | <a href="http://www.passforsure.co.uk/sk0-002.html">sk0-002</a> | <a href="http://www.passforsure.co.uk/642-533.html">642-533</a> | <a href="http://www.passforsure.co.uk/n10-003.html">n10-003</a> | <a href="http://www.passforsure.co.uk/350-001.html">350-001</a> |
Click <a href="http://www.pass4sure.com/">Pass For Sure</a> to get more information!

exam cert

Posted by Anonymous User at 2009.10.06 09.08AM

Pass4sure is the best choice for IT candidates who want to pass any IT exams. Popular certifications like Cisco, Microsoft, IBM, Sun, compTIA, HP, etc, ensure that customers could find the exactly one they need. Product forms at Pass4sure are various, software, hardcopy, video, E-Zine and so on.
The Most Popular Vendors List :
Microsoft exams | CompTIA certifications | IBM exams | Microsoft certifications | Cisco certifications | IBM exams | Cisco exams | Cisco certifications | SUN exams |
The Most Popular Certifications List :
MCSE 2003 Security exams | CCSP exams | SCSA 10 exams | MCSA certifications | CCDA certifications | CCDP exams | CCIP exams | CCSP certifications | CompTIA Security+ certifications | MCSE 2003 Security certifications | exams |
The Most Popular exams List :
70-504 | 70-565 | 70-503 | 350-018 | 220-601 | 642-642 | 70-640 | 70-561 | 640-460 | 640-822 | 70-567 | 70-503 | N10-004 | 70-561 | 70-562 | 642-436 | 70-646 | 220-601 | 70-536 | 70-621 | sy0-201 | 70-504 | 70-680 | 70-566 | 70-561 | 642-873 | sk0-002 | 70-656 | 640-460 | 70-567 |
Click Pass For Sure to get more information!

tiffany necklaces

Posted by Anonymous User at 2009.11.09 11.39AM

Christmas is coming, not have prepare the gifts for your friends? Tiffany rings will be the nice presents. Tiffany jewelry is your best choice, because tiffany&CO have so many beautiful kinds of producsts. Like tiffany necklaces for your love while the tiffany bracelets for your best friends, and tiffany earrings for your family members. So now go to the online-store for your tiffany jewelry.

generic viagra

Posted by Anonymous User at 2009.11.27 10.14AM

thank you for the information Generic Viagra | Cheap Generic Viagra | Cheap Generic Viagra | Buy Generic Viagra Online | Buy Cheap Generic Viagra Buy Generic Viagra Online Generic Viagra Kamagra

Software

Posted by Anonymous User at 2009.12.08 05.27PM

I need a recognized software which development should be at the same place . Trained team according to the Software Development . Tamiflu No Prescription

exam cert

Posted by Anonymous User at 2009.11.18 09.36AM

Pass4sure is an expert in providing the most valuable training materials for IT certification exams. Comprehensive and latest practice exams, 100% pass guarantee policy, professional pre-sale and post-sale service, all these protect your way on preparation for IT certification exams. Numerous vendors provide customers with a wide rang of choices.The Most Popular exams List :220-602 | 640-553 | N10-004 | 642-845 | 350-018 | 220-603 | xk0-002 | 350-030 | 642-825 | 640-460 | 220-603 | sk0-002 | 642-873 | 350-018 | 642-436 | N10-004 | 642-845 | xk0-002 | 640-553 | 640-553 | Click Pass4sure to get more information!

cheap ed hardy

Posted by Anonymous User at 2009.12.01 03.49AM

The street wear for the street smart speaks a lot about the fashion Christian Louboutin Shoes concepts of ed hardy clothing Line. The suave cuts and colors in the ed hardy t shirts Hoodies has become a popular flair among those who choose to mellow on their daily garb. The sneakers and ed hardy clothes are complemented by the ed hardy sale with its intricate vintage prints. The young professionals who choose not be held captives of ed hardy and casual look of collars and slacks opt for ed hardy t shirt , shirts and hoodies for that relaxed and casual feel. ed hardy t-shirt is the normal look preferred by the hippies, artists and yuppies alike.

wedding dresses

Posted by Anonymous User at 2009.12.07 08.49AM

The HP trainingwedding dresses preparation kit will prepare you70-291 for the exams at all levels, and free demo and free download are also provided online. The HP training is 642-523the best value exam guider for the HP. Abundant study PDFs are on cheap bridesmaid dresseshot sale! Check out HP which is 100% learning engine to help you while also the best customer service is guaranteed. As the HP training can quickly70-293 make you proficient because its precise explanation of the questions and answers you willinexpensive bridesmaid dresses absolutely appreciate it once you pass the exam.Aion Gold