Skip to main content

Defect Fixing : Biggest Project Risk

I was working on some estimates for a project by first estimating the size of the project and then estimating the effort by looking at some historical data on similar sized applications done in the past. What we realised that in all our projects we were pretty much on track with the estimated efforts until we reached the validation testing phase. In this phase we realised that we were spending anywhere between the initial estimated effort and three times the initial estimated effort.

I then tried to analyse why we had such a vast variation in the estimates for this phase and I found that the prime reason for this is because there are defects slipping through all the other phases into the testing phase and thus skewing the entire estimate. If there is no control on the other phases of the project then this phase is pretty much a mess and usually it is so late in the project that it is very hard to recover from the mistakes made in the other phases.

So if you see the project team can never be lax in any of the phases as all the inaccuracies crop up and bite you in the testing phase and sometimes fixing issues so late in the project may not be possible and hence the team starts working on workarounds thus messing up the project even further. So right from requirements right up to the project is handed over to the testing team to be tested the project team should employ methods such as reviews and code walk through along with Proof of Concepts to ensure that everything that is being developed is validated so that issues do not crop up later on.

We tried to employ this in one project but there were a lot of uneasiness early in the project as there was no visible progress being made as concepts were being validated with Proof of Concepts and design documents being written and reviewed. But what we realised was that with detailed documentation the coding phase was hardly anything and the testing phase was even shorter and the end result was code that one could really be proud of as it had no workarounds and it worked exactly as desired. The best part of this was we delivered ahead of schedule as we could multitask and plan a lot better with detailed designs.

Hence short cuts taken early in the project end up creating the biggest risk of the project and that risk is an inestimable number of defects late in the project. Another problem due to this risk is that you will not be able to give a definite delivery date to business because you don't know the defects that will arise and the complexity or severity of the defects and this is something business hates. So to save yourself this risk employ quality assurance/quality control activities in every phase of the software development lifecycle.


I enjoy posts such as these - where you talk about your project related experiences.

Popular posts from this blog

Online Encumbrance Certificate in Andhra Pradesh

You can get an encumbrance certificate online in AP now. In order to get it you have to perform the following steps. Go to the website Click on Citizen Services -> encumbrance -> Search Click on Yes in the screen that appears Fill in the entries that appear in the search screen. You will have to get quite a few details in so it will help to have a copy of the registration document available with you. Once you finish entering all the details click on Submit. It will then go to a new page with the list of items that matched the search displayed. Click on the check box of the list of encumbrance certificates that are needed and click on submit. This will open a new popup window with the encumbrance certificate. You can then print this certificate. What is this useful for Anyone buying new property can go and verify the current owners of the property that is shown on this certificate in the column Name of PartiesExecutant(EX)&Claimants(CL) with the copy of

Cricket Grounds in Hyderabad

This is a repost of the article I published on the 10th of Jan, 2008 as I have added a new ground - Lahari Resorts. View Larger Map In this post I will try and update the list of cricket grounds that i know in Hyderabad. The grounds that I have listed till now are MCH Play ground, Ameerpet Francis (Do not have the contact number but go to the ground and ask for him). The charges are Rs. 1100 for the ground. They do not charge for anything more. You get the ground from 9:00 AM to 4:00PM. The ground is small. Welfare Center, Sanath Nagar Dhanraj Babu (+91 9394556356). The charges are Rs. 1100 for the ground. They charge you an additional Rs. 500 for the mat and Rs. 100 for cleaning and drawing lines and stuff. They are supposed to give you the ground from 9:00 AM to 4:00PM but what they do is that they pocket extra money from another team wanting to play and give the ground out to them for the remainder of the day assuming that you won't play for the whole day. So what happened th

Problogger guest post

Today my guest post appeared on . I wrote about 9 Tips to Start Blogging Successfully . Let me give you a bit of a background about where this article originated from. I have been blogging for close to 3 years now but I have been doing it seriously only for the last 2 months. I then analysed what were the things that I should have done in order to have become a successful blogger based on what I have noticed on the ones that have become successful. The final analysis of my study is what I put into that article and it is what I am trying to implement since the last 2 months. Reading the comments it was exhilarating to notice that some of the readers actually thought Darren was writing the post :-). It was also nice to notice that many readers agreed with my analysis and that strengthened my belief that what I have written if followed will work. How did I get to do a guest post on ? A little more than a week ago Darren invited bloggers to do guest pos