Thursday, November 14, 2013

Applying the 80:20 Rule in Software Development

Managers don’t want to think harder than they have to. They like simple rules of thumb, quick and straightforward ways of looking at problems and getting pointed in the right direction. The simpler, the better.

One of the most useful rules of thumb is the 80:20 rule:

80% of effects come from 20% of causes and 80% of results come from 20% of effort.
It’s the flip side of diminishing returns: instead of getting less out of doing more, you can get more from doing less, by working smarter, not harder.

You can see obvious cases where the 80:20 rule applies in software without looking too hard. For example, 80% of performance improvements are found by optimizing 20% of the code – although the actual ratio is probably much closer to 90:10 or even 99:1 when it comes to performance optimization. But whether it's 80:20 or 90:10 or 70:30, the rule works essentially the same.

80:20 Who uses What, What do you Really have to Deliver

Another well-known 80:20 rule in software is that 80% of users only use 20% of features. This came out of research from the Standish Group back in 2002, where they found that:

  • 45% of features were never used;
  • 19% used rarely;
  • 16% sometimes;
  • only 20% were used frequently or always.

Like the like the cost of change curve, this is another example of a widely-held “truth” in software development which is based on limited evidence – it would be good to see more research that backs this claim up.

This finding has heavily influenced Agile and Lean development, encouraging people to focus on delivering minimum marketable features or defining a minimum viable product, even in large-scale enterprise projects. Instead of trying to design and plan out all of the features that a system may need, come up with the smallest, tightest possible definition of what people think is important and useful in itself, prioritize the features and deliver in steps as quickly as possible.

Standish Group’s latest research shows that thinking smaller and delivering less is a key to improving the success of software projects: While more than 70% of small projects are delivered successfully, large projects have “virtually no chance of success: … more than twice the chance of being late, over budget, and missing critical features”.

“In summary, there is no doubt that focusing on the 20% of the features that give you 80% of the value will maximize the investment in software development and improve overall user satisfaction. After all, there is never enough time or money to do everything. The natural expectation is for executives and stakeholders to want it all and want it all now. Therefore, reducing scope and not doing 100% of the features and functions is not only a valid strategy, but a prudent one.”

But thinking small and delivering less faster can also come with a downside: a “reduction in value and innovation”, when people play too safe and set the bar too low. Delivering 20% or 50% of a system won’t always be enough to succeed, even supposing that you can figure out what the right 20-50% is – some of those “extra features” are still important and necessary to somebody even if they aren't used much. You’ll need more than a minimum viable product to redefine a market or how people work or play, to set the world on fire.

80:20 Bugs and Testing

Code quality, bugs and testing is another area where the 80:20 rule is especially useful:

80% of bugs are found in 20% of the code

90% of downtime comes from 10% (or less) of defects

Bugs cluster in certain parts of code, especially serious bugs. Most of your most serious problems will come from a small number of bugs.

“80% of the errors and crashes in Windows and Office were caused by 20% of the entire pool of bugs detected.”
Microsoft’s CEO: 80-20 Rule Applies to Bugs, Not Just Features Oct 2002
Understanding where most of your most serious bugs are and why they got there and what you need to do to prevent more of them is where you should be spending a lot of your time.

Some studies have found that half of your code might not have any bugs at all, while most bugs will be found in only 10-20% of the code – often the 10-20% of the code that is changed most often (see “80:20 Which code gets changed and how often” below).

Each time that you find a bug in this code, chances are that it means there are still more bugs left to find and fix. The more bugs you find, the more chances there are that there are still more bugs to be found, in a downward spiral.

Capers Jones says that having to work on – or work around – high-risk error-prone code is the single largest drag on developer productivity over the life of a system and that not figuring out what code is causing you the most trouble and doing something about it is one of the most expensive mistakes that a development team can make.

Each time that you touch this code, even when you’re trying to fix it, there is a good chance that you are making it worse, not better: there is more than a 20% chance that a developer trying to fix a bug in error-prone code will accidentally introduce a new bug as a side-effect. Most of the effort put into trying to understand this code and fix it and understand it and fix it over and over, is wasted:

“Most error-prone modules are so complex and so difficult to understand that they cannot be repaired once they are created“.

When code gets this bad, it needs extensive and “brutal refactoring” to make it understandable and safer to work with, or it needs to be “surgically removed and replaced” with new code written from scratch by somebody who knows what they are doing.

It’s not hard to identify what parts of the code are bad if you have the same people working on the same code for a while – ask anyone on the team and they’ll know where that nasty stink is coming from. In big systems and big organizations with lots of turnover, you’ll probably need to track bugs over time and mine defect data for bug clusters, rather than just fixing bugs and moving on.

80% of time spent fixing bugs is on 20% of the bugs

Some bugs are much harder to fix than others. Sometimes because the code is so bad (see the rule above). Sometimes because the problems are so hard to reproduce and debug. Sometimes because they are much deeper than they appear to be – fundamental bugs in design, bugs that you can’t code your way out of. Be prepared for those times when even your best developers won’t be able to tell you when – or even if – some bugs will be fixed.

80:20 Which code gets changed and how often

Michael Feathers has found more 80:20 power law distributions by looking at changes to code bases over time (“Discovering Startling Things from your Version Control System”):

80% of changes are made in 20% of the code

A lot of code is written once, and never changed: static and standardized interfaces, basic wiring and config, back office functions. Then there’s other code that changes all of the time: the 20% of features which are used 80% of the time and need to be tweaked and tuned and occasionally overhauled as needs change; core code that needs to be optimized; and other code that needs to be fixed a lot because it contains too many bugs (back again to the 80:20 bug cluster rule above).

Feathers has found that code that gets changed a lot also tends to get bigger as time gets on, because of a simple, built-in bias:

it is easier to add code to an existing method than to add a new method and easier to add another method to an existing class than to add a new class.
As a result, many systems end up with a few very large classes which contain a few very large methods, and which keep getting bigger and bigger as code gets changed.

Hot spots in code are easy to find by reviewing check-in history for areas with high churn and through simple static analysis of the code base. This is where you get the most value out of refactoring, where you can do the most to keep the code from losing structure and becoming dangerously unmaintainable – and it is also the code that naturally should get refactored most often as part of making changes (changed more often = refactored more often if you’re refactoring properly).

80:20 and Programming Time

The first 80% of code is done in 20% of time…the remaining 20% of the code takes the other 80% of the time

It usually doesn't take long to get something almost working, or something that looks like it works, especially if you’re working iteratively and incrementally, delivering frequently and fast.

But there’s a lot of work that still needs to be done “behind the scenes” to finish things up, to catch the edge cases and handle errors, make sure that the system performs and scales, find and fix all of the little bugs, get the code into shape before it can be deployed. Product Owners/Customers (and managers) often don’t understand why it takes so long to get the “last 20%” of the work done. And programmers often forget how long this takes too, and don’t include this work in their estimates. This is why a developer’s estimates are so often wrong. And why prototyping can be so dangerous in setting unrealistic expectations.

80:20 and Managing Software Development

Keeping the 80:20 rough rule in mind can save you money and time, and improve your chance of success by keeping you focused on what’s important: the features that really matter, the parts of the code where most of your most serious bugs are (and the bugs that take the most time to fix); the parts of the code that are changing the most; and how and where your team really spends their time.

88 comments:

Anonymous said...

Hi Jim, I found your post very interesting. I was looking for "how to manage dev teams in order to understand the importance of Pareto principle relaying on business definitions". It was with some kind of joy that I read your blog, but what do you think about dealing with incomplete business definitions where the 80% of profit comes from 20% of the relevant business operations? I'm a senior Business Analyst's manager and I still didn't find a proper balance between partials business definitions and the need for programmers to have everything defined in order to have every single detail in account.
thanks in advance! Diego

SR said...

Scrum = 80% ceremonies 20% real work

Unknown said...

Waterfall 20% functional 80% dead applications

Unknown said...

Yes I totally agree with your rules. These are very important rule in any software development company. We at Cryptex follow standard rule of agile development software.

Steve Jones said...

Actually, you get the facility to contact during the leisure time irrespective of daylight or dark hours. Your phone call always gets respect to fetch up to the mark results on an instantaneous basis.

charter spectrum support
spectrum remote not working
spectrum.com/support
time warner cable customer service number
time warner customer support number
spectrum customer service phone number
spectrum customer care number
spectrum internet not working

Tech guru said...

To Kill Wireless Issues Call At Verizon Wireless Phone Number

Verizon wireless devices are one of the best presented devices for commercial as well as official establishments. You can also connect these devices to a Wi-Fi network to take the advantage of internet. To know the steps to create setup for Verizon devices, just call at Verizon Wireless Phone Number at once. The wireless network is a hassle-free network, so you don’t need to take tension about power cables and network failure.

Abhijeet said...

We are a travel and lifestyle site with an interest in all things sex. Travelling opens our eyes to new places, people and experiences. In meeting new people and exploring new things we learn as much about ourselves as we do them.

Richest Actor In The World

Software Wont Open said...

Since the Windows 10 update a few days ago, Google Chrome Won't open. It appears to open but the tabs not have been opened. Internet is ok, and if I get to Chrome via another browser, it recognizes my account and has all my favorites in situ. I have tried uninstalling but no change. Any advice appreciated.

Mail not working said...

AOL Mail Settings AOL Mail gives you the experience you always wanted. Find out how to update your settings to form AOL Mail look and feel exactly how you would like it.

alice marvel said...

Well explained and knowledgeable blog click here for
QuickBooks customer service Number for more detail dial on our QuickBooks Support phone number 844-908-0801

Mail not working said...

Mail not opening on Mac If you are trying to open a version of the Mail app that can’t be used on your Mac, an alert message is displayed. Confirm the version of Mail you’re trying to open is found within the Applications folder.

Mitchell Cox said...

A Roku Help Upgraded remote with voice. Take in more about utilizing your voice to look for films. Network programs and the sky is the limit from there.

www.hulu.com/activate
connect cable to tcl roku tv
reset roku stick
roku customer support number
set up roku stick
set up youtube on roku tv

Mitchell Cox said...

Really great article!! thanks for sharing your helpful information for us, and i would like to say that please continue sharing your information.

time warner cable customer support number
roku remote not blinking
roku activation link
roku customer service number
roku.com/link

rightselects said...

Wow!!! It was a great article I came to know a lot about the elevators by going through this article. If you’re also looking for a used injection moulding machine, visit right select to gain the best possible information about the injection moulding machine process
.

glass artwork said...

thanks for your details.
glass art work in pondicherry
glass painting work in Pondicherry
glass artwork in Puducherry
glass painting work in Puducherry
glass wall art in Pondicherry
glass artist in Pondicherry
church glass artwork in pondicherry
wedding hall glass artwork in Pondicherry
temple glass artwork in Pondicherry
mosque glass artwork in Pondicherry
interior glass artwork in Pondicherry
marriage brokers in nagercoil
nadar matrimony in nagercoil
thirumana thagaval maiyam in nagercoil
nagercoil matrimony
csi matrimony nagercoil
hindu matrimony in nagercoil
christian matrimony from nagercoil
matrimony in kanyakumari
matrimony in marthandam

errorfixer said...

Dial on our error support How to fix QuickBooks Error H505 844-908-0801 to get the solution of all QuickBooks issues and error

renshiya said...

thanks for your information.
web design company in nagercoil
best web design company in nagercoil
website design company in nagercoil
web development company in nagercoil
website development company in nagercoil
web designing company in nagercoil
website designing company in nagercoil
digital marketing company in nagercoil
digital marketing service in nagercoil
seo service in nagercoil
seo company in nagercoil
social media marketing in nagercoil
ppc service in nagercoil
web design company in nagercoil
best web design company in nagercoil
web design company in nagercoil
website design company in nagercoil
web development company in nagercoil
website development company in nagercoil
web designing company in nagercoil
website designing company in nagercoil
digital marketing company in nagercoil
digital marketing service in nagercoil
seo service in nagercoil
seo company in nagercoil
social media marketing in nagercoil
ppc service in nagercoil

Mail not working said...

USPS mail forwarding not working USPS mail forwarding means sending received mail to a replacement address. If you get a letter within the mail and need to send it to a different address, this is often mail forwarding. Also, check here—all you would like to understand a few Forwarded Package. There are a couple of cases you’d got to forward mail to someone or a replacement address so let’s undergo these cases and.

Denim said...

If you've extractive checked and done of these things but still sustain the Printer is in an error state issue then you ought to follow the below-instructed methods to resolve Printer in a mistake state Windows 10 printer problem. Here, we've listed the three most helpful methods. Here we go..

Mitchell Cox said...

All this content are really worthy for blogger and also free. So its a nice post enjoyed very much!

silversingles customer service number
silversingles customer support number
silversingles support number
silversingles phone number

Software Wont Open said...

Disable the Add-In to urge obviate Outlook won't open issue. Create a replacement Outlook Profile. At times, the corrupt Outlook profile may prevent Outlook to open on your Windows 10 and lower versions. you'll create a replacement Outlook profile for an equivalent email account and see if you're ready to open Outlook with this newly created Outlook profile.

Off Pages Sites List said...

roku.com/link
Roku Com Link
Roku Link Activation Code
Roku account setup
Activate Roku Code
Roku Error Code Setup
Roku contact Support
Roku Products
Roku Troubleshooting
Roku Remote Error

Off Pages Sites List said...

Roku Streaming Errors
Roku Support Number
Roku Setup Assistance
Lets Activate your Roku Account
Roku Activation Code - smartcomlink.com
What is the procedure to Activate Roku using Roku Activation Code?
Easy Activation of Roku Com Device
Easy Ways to Cancel Your Netflix Subscription
How to Find Link Code for Roku and Activate Roku Account Through Link

Off Pages Sites List said...

Roku Com Link
roku.com/link
Roku Link Activation Code
Roku account setup
Activate Roku Code
Roku Error Code Setup
Roku contact Support
Roku Products
Roku Installation Assistance

Off Pages Sites List said...

Roku Support Number
Roku Troubleshooting
Roku Remote Error
Roku Channel Error
Roku Activation Code - rclcomlink.com
Lets Activate your Roku Account
Roku activation code- Where to find?
Know How You Can Activate Roku Without Sharing Your Credit Card Details

Off Pages Sites List said...

Roku now brings 12 different game shows!
Roku brings 12 Kids Channels
Dicovery Stations available on Roku
How can the issues with the Roku player be fixed?
Sonos and Roku can now get connected
To get started with Roku account using Roku Com Link Activation Code
People cannot get enough of TIDAL on Roku
Now VUDU can be activated on Roku
Roku brings music into your life
Viral Recordings on Roku

Bark Rokli said...

Although published subsequently, the work of Edifier and Hellman was published in a journal with a large readership. If you are looking for Dubai Website Design who can work with you on your project then Indeed you are at the right place.

David Daniel said...

Substantial empirical evidence supports the veracity of this perspective in describing the actions of real designers. Best Cleaning Services In Dubai

Jeny Jehn said...

The other realist position asserts that properties are particulars (tropes), which are unique instantiations in individual objects that merely resemble one another to various degrees. App Developer Dubai

printer not activated error code 30 said...

When you get the answer for printer not activated error code 30 then it's best to access simple methods to figure. additionally, you'll check the networks and possible to your printer and computer functions normally. On another hand, you'll handle the devices thanks to connecting the opposite proper network or cable should be wont to your connection has no problem. additionally, you'll fix it with restarting your devices and more computer features if leave them to a few of minutes and also connect error is gone

Hp printer support said...

HP Support Assistant or HPSA could be a utility included all told HP computers to diagnose technical issues and manage updates. While HP technical support will usually fit you to use the Support Assistant, more users get the program intrusive and unnecessary, especially when a critical function is interrupted by HPSA reminders or automatic updates. Depending on how displeased you're with the HPSA, you'll prevent it from installing updates, block it from running on start-up and even completely uninstall hp support assistant.

Denim said...

When you get the answer for printer not activated error code 30 then it's best to access simple methods to figure. additionally, you'll check the networks and possible to your printer and computer functions normally. On another hand, you'll handle the devices thanks to connecting the opposite proper network or cable should be wont to your connection has no problem. additionally, you'll fix it with restarting your devices and more computer features if leave them to a few of minutes and also connect error is gone

Denim said...

Has your printer stopped working suddenly after switching to Windows 10, or Getting printer not activated error code 30 , being unable to print documents or being unable to attach to the printer while trying to use it? due to this Error Printer in Error, the printing job has stopped, here are some effective solutions for fixing printer problems on windows 10 and getting it to figure again.

Denim said...

The How to fix Printer is in an error statealso result of more faulty with the all incompatible printer driver and also need to update the driver to fix problems of this kind. You can handle the best way and deal with the drivers is easier. Then, the driver is easy and more automatic recognize with your system and find out the all correct drives.

Quickbooks said...

Is your Quickbooks posing some minor troubles these days? If your Quickbooks help not working, you can dial our toll free number to overcome your problems. https://www.assistanceforall.com/services/quickbook-support/

Satyam said...

We are writing information for a period of time and keeping people updated about different issues. Regardless what concerns you,you can definitely see it on how to reopen a closed tab. This is the great reason why we are so popular all around the globe. Once you see this site you can find that they go right with tech and business information and gradually go on towards some generic information that covers a broad range of issues. Not only that,you can still see the entire section devoted to only health information.Then you see, there is virtually nothing under the light that isn' 't covered by the genius structure!

Chauhan Mandis said...

Your post is really amazing as I always read your post and bookmark it also. If anybody wants any type of technical assistance related to their ms office applications, visit our website for any help.


QuickBooks Error 502 Bad Gateway
QuickBooks error code 12029
QuickBooks Error Code H202
Resolve QuickBooks Error code 1935

baroncorrz said...

Thanks for sharing this post , We assistant you the solid tricks as you want to take Epson wireless printer setup to maintain the best result at any cost. We are emerged as the notified professional Technical team where you can get the solution of everything. For leveraging the troubleshooting skill of our team, you must dial our toll free number.

Epson error code 0x97

Epson error code 0xf1

corenfozz said...

Thanks for sharing this post , We are one of the most trustworthy and independent third party technical support service provider, offering online technical support services for brother printer users. If you’re experiencing Brother Printer Offline issue, you can call our certified printer experts immediately. Our printer technicians are available online to help you remotely.

renshiya said...

thanks for your information.nice blog.
glass art work in pondicherry
glass painting work in Pondicherry
glass artwork in Puducherry
glass painting work in Puducherry
glass wall art in Pondicherry
glass artist in Pondicherry
church glass artwork in pondicherry
wedding hall glass artwork in Pondicherry
temple glass artwork in Pondicherry
mosque glass artwork in Pondicherry
interior glass artwork in Pondicherry
marriage brokers in nagercoil
nadar matrimony in nagercoil
thirumana thagaval maiyam in nagercoil
nagercoil matrimony
csi matrimony nagercoil
hindu matrimony in nagercoil
christian matrimony from nagercoil
matrimony in kanyakumari
matrimony in marthandam
glass art work in chennai
glass painting work in chennai
glass artwork in chennai
glass painting work in chennai
glass wall art in chennai
glass artist in chennai
church glass artwork in chennai
wedding hall glass artwork in chennai
temple glass artwork in chennai
mosque glass artwork in chennai
interior glass artwork in chennai

Software Wont Open said...

Recently I updated my current Windows 10 Build to the latest build except for some reason, and Google Chrome won’t open in upgraded Windows 10. On the other hand, Internet Explorer, Apple Safari, Mozilla, works fine but clicking the Google Chrome icon resulted in nothing happening.

Assignment Help said...

assignment help will connect you with experienced assignment writers when you want to get an easy solution for your assignment writing. Pay a reasonable amount and get the experts' writing services for your research papers or essays in just a few steps.
Online assignment help
assignment help online
assignment helper
online assignment helper

Denim said...

There are particular reasons behind your Printer in error state or not able to print. Among the primitive reasons can be the connection between the printer and the attached device gets bloated. This generally occurs when you upgrade your windows to windows 10, which situation is likely known as hp printer in error condition windows 10. If such error occurs you must dial the toll-free amount that's available online to acquire HP Printer Support assistance.

Expert Needs with instant solution said...

Oftentimes, it occurs that users overlook their Google password. When they will regain their accounts, occasionally they do not have their contact number or even recall their date of arrival. The question arises in their own heads about how to regain Google accounts or Google account retrieval date of arrival when they don't have their telephone number. Consequently, if you confront the exact same issue, then you certainly do not need to be concerned since there are not many simple steps available to recoup your Google account recovery page .

Lavanya Menon said...

High-Profile Independent Goa escorts
Goa Escorts at affordable price
Best Escorts Services in Goa
Book Independent Escorts in Goa
Top VIP Goa Escorts Services
Passionate Independent VIP escort in Goa
VIP Special Goa escorts
High-class Goa Independent Escorts
Satisfying Goa escorts service
Independent female escort in Goa
Reliable Goa escorts services
Best Goa escorts services
Independent Goa escorts services
Genuine Goa female escort service
Trusted Goa escorts
VIP Goa escorts Services
Beautiful Goa escorts Service
Sizzling Escorts in Goa

Sensual Pleasure VIP Goa Escorts
Sensual Pleasure Independent Escorts Services in Goa
Sensual Pleasure Independent Goa escorts

Pankaj Chauhan said...

Thanks for such a great post.
Related : The 80/20 Principle Summary - Business Insane

Business Insane - "READ THE SUCCESS"

Office.com/setup said...

Norton offers a comprehensive range of avant grasde cyber security software products for unbeatable protection. It provides state-of-the-art and robust protective cover against every possible online threat. These innovative products are backed by advanced technology, feature-dense design and proactive, user-friendly approach,click norton.com/setup Enter a New Product Key.
Norton.com/setup

Harsha said...

Thanks for sharing such nice content.
https://www.methodspace.com/members/BangkokVIPEscortsAgency/profile/
https://euro-math-soc.eu/users/bangkokvipescortsagency
https://www.woodworkingnetwork.com/users/bangkokvipescortsagency
https://forum.cs-cart.com/user/68830-bangkokvipescortsagency/
https://startupxplore.com/en/services/services-providers/bangkok-vip-escorts-agency
http://stinkygear.com/index.php/author/chiangmaiescorts/
https://www.ezistreet.com/profile/chiangmaiescorts/
https://kubuckets.com/user/chiangmaiescorts
https://www.last.fm/user/HotThaiEscorts

Rajat Gaikwad said...

Thank you for sharing valuable information. Nice post. I enjoyed reading this post.
packers and movers in una

parry Smith said...

Thank you for this wonderful information looking forward for more. I am proadvisor in QuickBooks Software.

Fix QuickBooks Validation Code is Incorrect
Backup of your Data File in QuickBooks
How to use QuickBooks Clean install tool for window

Ajay kumar said...

Thanks for posting
my website techwolk is related to technology

Ajay kumar said...

Thanks for posting
my webside techwolk.in/Sonsindiasong
I have Webside techwolk.in/Sonsindiasong for Related by All type Songs.

Career Counseling said...

Career Dose Never Let you down in your career life. career is very important. achieve you aim with proper guidance. Let We connect for achieve dream.

Unknown said...

However, the new form, the MagicJack Plus, can be associated straightforwardly to your switch or modem and can be utilized without a PC as long as you have broadband Internet benefit.

magicjack customer service number
magickjack customer support number
magicjack tech support number

Jamesmark said...



Make Your Gmail Safe from Intruders Via Gmail Customer Service


People who are using the Gmail Customer Service face no difficulty or hiccups from intruders while sending or receiving mails in their Gmail accounts. If you also wish to be one of them, then you can attain the service by going through one of the offered channels, which is totally free and can be availed from the any part of the globe.

QuickBooks Premier Support said...

Thanks for sharing such an informative post.
QuickBooks sometimes receives Learn how you can fix QuickBooks error code 1311 like a Pro at the time of exporting the financial details to the excel file. We have given the possible solution for how to fix QuickBooks error code 404. You can follow the given steps or contact to QuickBooks premier support team to save your precious time and efforts.
However, at times they face few errors with, QuickBooks Online login problems on Chrome when signing in on the Intuit official website.

Lavanya Menon said...

Party Call Girls in Goa

Russian Call girls in Goa

College Call Girls in Goa

Housewife Call Girls in Goa

Pakistani Call Girls in Goa

Pakistani Call Girls

Independent Pakistani Call Girls

Sensual pleasure Pakistani Call Girls in Goa

High-Profile Independent Goa escorts

Goa Escorts at affordable price

Best Escorts Services in Goa

Book Independent Escorts in Goa

Top VIP Goa Escorts Services

Passionate Independent VIP escort in Goa

VIP Special Goa escorts

High-class Goa Independent Escorts

Canon Support said...

canon printer not printing error is very common and obvious to occur because when you use a printer due to some error at least once, the printer stops working. And printer not printing issues is very daunting because users get very frustrated and cannot use the printer. If you are facing Canon printer not printing issue then don’t worry, here we are to give you the best support. We have trained and skilled techniques’ teams who can solve Canon printers’ error in just a couple of minutes. Canon printers have advance features and they are very user-friendly, but still, no one can stop the errors to occur in Canon printers. Therefore, it is advised to take an expert’s help to get rid of techniques issues.

tiger shroff said...

vidmate download
vidmate apk

joehansan said...

This is a good site to spent time on .I just stumbled upon your informative blog and wanted to say that I have really enjoyed reading your blog posts. I will be your frequent visitor, that’s for sure.
Epson Error Code 0xe8

Wps Pin On Printer said...

It’s hard to find knowledgeable people on this topic, but you sound like you know what you’re talking about! Thanks

Unknown said...

The Purpose of Social Media People are using social media for a spread of purposes. The four main uses of social media form the miniature form SLIM: sharing, learning, interact, and marketing. S haring: With social media, you'll share information and concepts during a sort of ways. Different outlets allow you to publish your own ideas in writing, with pictures, or through videos and voice recordings; and you'll

Career Counseling said...

Career Dose Never Let you down in your career life. career is very important. achieve your aim with proper guidance. Let Us connect for achieving a dream.

assignmentauthors said...

The funny part of is how I tried so much not to laugh because if he could catch me I would have a case to answer through the facial expression he displayed as he tried his best to convince me how those wrong calculations would lead me to an answer.ebook writing service

elisamartin08 said...

Thanks a lot for sharing kind of information. Your article provide such a great information with good knowledge. Aol Error Code 104

Career Dose said...

Career Dose Never Let you down in your career life. career is very important. achieve your aim with proper guidance. Let Us connect for achieving a dream.

Situs Judi Online Terpercaya said...

NAGAQQ | AGEN BANDARQ | BANDARQ ONLINE | ADUQ ONLINE | DOMINOQQ TERBAIK

Yang Merupakan Agen Bandarq, Domino 99, Dan Bandar Poker Online Terpercaya di asia hadir untuk anda semua dengan permainan permainan menarik dan bonus menarik untuk anda semua

Bonus yang diberikan NagaQQ :
* Bonus rollingan 0.5%,setiap senin di bagikannya
* Bonus Refferal 10% + 10%,seumur hidup
* Bonus Jackpot, yang dapat anda dapatkan dengan mudah
* Minimal Depo 15.000
* Minimal WD 20.000

Memegang Gelar atau title sebagai QQ Online Terbaik di masanya

Games Yang di Hadirkan NagaQQ :
* Poker Online
* BandarQ
* Domino99
* Bandar Poker
* Bandar66
* Sakong
* Capsa Susun
* AduQ
* Perang Bacarrat (New Game)

Tersedia Deposit Via pulsa :
Telkomsel & XL

Info Lebih lanjut Kunjungi :
Website : NAGAQQ
Facebook : NagaQQ Official
Kontakk : Info NagaQQ
linktree : Agen Judi Online
WHATSAPP : +855977509035
Line : Cs_nagaQQ
TELEGRAM : +855967014811


BACA JUGA BLOGSPORT KAMI YANG LAIN:
agen bandarq terbaik
Winner NagaQQ
Daftar NagaQQ
Agen Poker Online

My Assignment Help Online said...

Assignment help Australia offers affordable and reliable assignment help to students across Australia. All the specialised services can be availed in any simple or complex task of any subject or course at an affordable price thereby meeting the expectations of students looking for quality assignment help within some budgetary constraints. Convince yourself only after looking at the list of our free samples talking of our quality and expertise.

neha said...

I have to agree with all your inclusions such great information that will be very useful, Thank you for sharing this great blog.
Home Remedies for Tanning
how to remove tanning
best Car Accident Lawyer in Phoenix
How to donate a car in Maryland
best magazine in India
how to lose 10 kgs in one month

Technical Help said...

Visit mcafee official website www.mcafee.com/activate. Enter your 25 digits Mcafee activation Product Key Enter your Email and password Click Submit and Log in to your account. Once Logged in, Download your Setup in download folder. Run application to install, you’re all set to go!
mcafee.com/activate

Tanjila Akter said...

Really amazing content, thanks for sharing with us and keep updating! This website article is really excellent and unique. I will visit your site again. You can see the Bangladesh Education, Events, JSC, PSC, SSC, HSC, Honours, nu, Result, routine and Job circular Pureinfobd

Village Talkies said...

Best Corporate Video Production Company in Bangalore and top Explainer Video Company in Bangalore , 3d, 2d Animation Video Makers in Chennai.

In fact, this article helps me to gain some knowledge.

qbenterprisessupport said...

Thanks a lot for sharing such great post.

How to Merge QuickBooks Company file
How to resolve the QuickBooks error code C=1327
Fix QuickBooks error code 12029
QuickBooks Error Code H202
How to Resolve QuickBooks error code 15104

Hp Support Assistant said...

Your site always offer some really interesting information. Thank you for sharing it with us.

joehansan said...

Very nice article, I found it very useful .Even I have this wonderful website, Good quality of windows and doors are very essential for any workplace.Epson printer offline

KBC Live said...

I blog often and I genuinely thank you for your content. This article has really peaked my interest. I'm going to take a note of your site and keep checking for new information about once a week. I opted in Jio KBC Lottery Winner for your RSS feed as well.

Anonymous said...

Having read this I believed it was very enlightening. I appreciate you spending some time and energy to put this informative article together. I once again find myself personally spending a significant amount of time both reading and leaving comments. But so what, it was still worthwhile! Jio KBC Lottery Winner

sylvia said...

Thank you for sharing the article. Looking for front end development companies?
The data that you provided in the blog is informative and effective.I am happy to visit and read useful articles here. I hope you continue to do the sharing through the post to the reader. Read more about
Top Front end development companies
Best front end development companies
Mobile app development companies

lisha john said...


What a fantabulous post this has been. Never seen this kind of useful post. I am grateful to you and expect more number of posts like these. Thank you very much
System Restore error 0x800700b7

joehansan said...

It’s hard to come by experienced people about this subject, but you seem like you know what you’re talking about! Thanks
HP Error Code 0xc19a0003

norton.com/setup said...

Cybersecurity is as pressing an issue today as it has ever been. There are always malicious third parties who are looking to exploit vulnerabilities icn your security system and wreak havoc in your personal data. norton.com/setup These hackers can inject malicious pieces of code into your system and either steal your private information or put it behind a ransom. That is why it is so important to invest in security solutions that equip your computer system with the defense it needs to counter any such invasive attempts. An antivirus program is one of the very first things you should look into.

restbet said...

sitelerine göre daha yüksek bahis imkanı Betonbet ve ile hem kazanacaksınız hemde keyif dolu bahisler yapabileceksiniz. Site son adres Megapari güncellemesi ile yeni giriş adresinden hizmet baş oldu
Futboldan anlamasanız safra kazanabilirsiniz Timebet

restbet said...

ekiplerinden Betbaba biri olan bahis sitesi ile sizde kazanabilirsiniz. Diğer bahis sitelerine göre daha yüksek bahis imkanı ve ile hem kazanacaksınız hemde keyif dolu bahisler yapabileceksiniz. Hilbet Site son adres güncellemesi ile yeni giriş adresinden hizmet baş oldu
bahis sitesi canlı spor bahisleri Tipobet ve casino oyunları ile kesintisiz hizmet ağı devam ediyor. Türkiye'nin en eski ve kaliteli bahis ekiplerinden biri olan bahis sitesi ile sizde kazanabilirsiniz. Sultanbet Diğer bahis

restbet said...

çalışanlar Betvole değil aklını kullananlar ve riske girmekten Betvole korkmayanlar oldu. Siz de avrupa bahis siteleri ile küçük sermayeleri riske atarak ciddi kazançlar elde edilir. Hiç riske girmeden güvenliğini yaşayabilir.
bahis sitesi canlı spor bahisleri Mariobet ve casino oyunları ile kesintisiz hizmet ağı devam ediyor. Klasbahis Türkiye'nin en eski ve kaliteli bahis

restbet said...

Çalışmak, çalışmak ve Ngsbahis durmadan çalışmak Restbet
Para kazanmanın yolu maalesef hiçbir zaman çalışıyorum olmadı. Betpas tarihteki tüm Bahsegel zenginler çok

anonymus said...

https://togelhoky1.blogspot.com/
https://togelresmi8.blogspot.com/
https://togelsgphk8.blogspot.com/
https://situstogelkita.blogspot.com/
https://togelonlinejudi.blogspot.com/
https://togel2020wap.blogspot.com/

max willor said...

The post is quite informative and appears to be all-encompassing as I could derive a lot on the topic by reading through it. My Assignment help this is what I call a really good post. It is so broad that I don't have to jump for the details somewhere else. Good job, keep up your updates!

Keerthi SK said...

i have been following this website blog for the past month. i really found this website was helped me a lot and every thing which was shared here was so informative and useful. again once i appreciate their effort they are making and keep going on.

Digital Marketing Consultant in Chennai

Freelance Digital Marketing Consultant

Site Meter