Modeling Software Defect Predictions

In this post I will share yet another tool from my PM Toolbox: A simple method any Software Project Manager can use for predicting the likelihood of project completion, based on a model for defect prediction. This tool only scratches the surface of real software engineering defect management, but has nevertheless proved useful in my experience of managing a large software stack. For instance, this tool was borne from my direct experiences as a Development Owner for a large Software Stack for STB Middleware that comprised of more than eighty (80) software components, where each component was independently owned and subject to specific defect & software code quality requirements. I needed a tool to help me predict when the software was likely to be ready for launch based on the health of the open defects; as well as use it as evidence to motivate to senior management to implement recovery scenarios. It was quite useful (and relatively accurate within acceptable tolerances) as it offered perspective of a reality that more often than not, people underestimate the work required to get defects under control, the need for predicting project completion dates based of defect resolution rates, depending on the maturity of the team is often also misunderstood. 

I created the first instance of this tool back in 2008/2009, the first public version was shared in this post on Effective Defect & Quality Management. Since then, I've upgraded the tool to be more generic, and also significantly cut down on the number of software components. I still use the tool in my ongoing projects, and have recently convinced senior management in my current project to pay heed to defect predictions. 

Risk Management - Generic Risk Register DTV Projects

In this post, I share a generic Risk Register than can be tailored for almost any Digital TV Systems Project, especially projects around Set-Top-Box product development. The register can be used by Program & Project Managers from the customer (Pay TV Operator), vendor (Middleware / EPG / Drivers / CA) or Systems Integrator. It can be tailored to meet the specifics of a project.

You are free to download this tool, use it as a template for your own projects, as long as you retain some attribution to me as the original author. All my work on this site is licenced according to Creative Commons Share-Alike attribution.

Over the past decade of working with Digital TV projects, especially around Set-Top-Box projects, I've come to experience common themes that repeat themselves one project-after-another-after-another. Whilst it is true that no two projects are the same, I do believe that projects will ultimately be exposed to similar risks, issues & opportunities - besides, we can no longer say that Digital TV is a new and emerging field. We've been making Set-Top-Box (STB) hardware & developing STB software for just over two decades now, and as with all manufacturing & development processes, we have probably reached a point where some standard blueprints can be put together, forming templates that can be used to guide such projects going forward.

So it is the aim with this post, to share a Generic Risks Register, that is borne out of my own personal experiences - that I myself use as a template for managing Risk on every new project I embark on.

SI QA Sanity Tests debate...round one

Today, after 19 months of joining the company & about 18 months from getting involved with ongoing projects, we finally decided to have a discussion around the topic of "Sanity testing" since I had a tendency to always comment on why we continued with downstream testing even though "sanity" had failed, but I was always overridden that it was deemed acceptable for the current stage of the project, and since I wasn't directly involved in managing that project, so I let it be - the timing wasn't right yet...

But even today, on a project that I do have direct involvement in as the overall programme manager, having influenced & steered much of the development / integration / test process improvements to bring the project back on track again, there is still some confusion around what "sanity testing" really means. The technical director managing the launch, who's position in the corporate hierarchy is one level above myself (and the QA manager), has maintained a different view of Sanity Testing than I. But it seems I'm not alone in my view, having recently gained the support of the QA Manager as well as the Product Owner - so we decided it was time to meet and discuss this topic in an open forum, to try and reach an understanding, to avoid confusing the downward teams, and establish a strategy for possible improvements going forward...easier said than done!

One of the challenges I face almost daily is that of enabling change across the project team, sticking my nose into Development / Integration / Test departments with the aim of steering them in the right direction, to help increase the chances of the project delivery.  I do this, even though I myself, strictly speaking am positioned within the organisation as a "Programme Manager or Strategic Planner", wearing the hat of Project Management, as if applying PM pressure across the team isn't enough of a thorny subject already, I still go and push for process changes in Dev / Int / QA - am I a sucker for punishment or what?? But I can't help myself really, because my technical background, I've been through all the stages of software engineering as both engineer and manager, and have worked for the best companies in the industry, who, through the years evolved to using best practises -- so when I see things being done that deviates from what I consider the norm in the industry, I just can't help myself, but to intervene and provide recommendations because I can help short-circuit the learning curve and help the team avoid repeating expensive mistakes!

And so with the topic of QA Sanity, we've never respected the term, and continue, despite failing sanity, to proceed with testing an unstable product, in the hope of weeding out more failures:

• What does Sanity mean? 
• What do we do when Sanity fails?
• Do we forsake quality until later in the project?

Types of Digital TV Projects, Decision Factors & Typical Duration

In this post I will discuss the various types of Digital TV projects that I've come across over the last twelve (12) years. Although the DTV system is a complex one, and in theory, there are many different permutations and combinations of possible projects, we should not forget that on the part of the Pay TV Operator, it is quite an expensive affair, and therefore these guys are quite resistant to change. Initial costs in setting up the broadcast network must be made up in as short a time as possible (ROI in less than 5 years maybe), subscriber growth must be on the increasing trend, competitive threats kept at bay.

Depending on the market dynamics, some PayTV operators (especially Europe & North America) have strong competition, the market is quite open and those regions usually have a strong regulatory body that promotes a free market, competitiveness and most important of all, the right of consumers to choose. Whilst in other markets such as Africa and Middle East, the PayTV operators that were first to get in when the time was right, are usually market leaders, the dominant player and lack any strong competition.

Regulatory bodies in this region are either non-existent or immature in its abilities in governance and promoting a free market based on consumer choice (South Africa is a good example: not generally consumer driven, although recently this has seen a change with the introduction of the Consumer Protection Act but is still far from having an SA-equivalent of the UK's Ofcom for example ICASA doesn't come close). In the Asia/Pacific markets, there is a growing number of PayTV operators, where competition is rife, time-to-market more important over say, user experience or innovative features (I've seen this with my own eyes, for example - in India, there are some operators that have got products that look like they're built on eighties technology)...

I've set myself quite an ambitious task (as usual). The nature of DTV projects vary, depending on which side of the fence you're sitting on. Of course, all projects that generate revenue are driven by the PayTV operators themselves. If you're a software vendor, say Middleware or EPG Application, you will have a mix of customer delivery projects and internal R&D projects. Both projects have their own challenges, involve various factors that influence decision-making; and both can largely be estimated using general guidelines (that are usually based on performance of past projects).

In this post, I'll discuss projects from the PayTV Operator's point-of-view, in terms of typical use cases. In a future post I will touch on typical R&D projects and what drives primarily software vendors operating in the DTV product space.

Breakdown:

• Overall Goal
• High-Level Breakdown of Kinds of DTV Projects
• Factors that Influence DTV Projects
• Typical DTV Project Scenarios
• Related Reading Material

Process for Fast-Tracking Issues - The Daily Scrub

In this post I'd like to share a simple, yet effective process to managing the defect discovery phase, typical experienced during the early stabilisation phase of launching a STB product. The process does not only apply to STB projects, it can be used for Headend projects; or even general Software Projects that involve a number of components requiring system integration. Since the bulk of my experience comes from STB projects, the information presented here thus has a bias towards STB projects.

The material presented here is not that ground breaking, really. If you've been in the business of delivery DTV projects for a long time, then you probably have a tried and tested way of managing the system integration processes. However, if this is the first time you're involved in system integration, you are either a PayTV Operator taking more ownership of SI (System Integration), or you might be a professional services outfit and have won your first big project - If you fall into either of these categories, then I have no doubt that you'll find this useful, at best, trigger to review your currently planned strategy.

As an aspiring independent consultant, the Scrub Process is yet another addition to my PM Toolbox. Recently I had to present this process to a project team, who's processes were a bit old-fashioned and rather rigid, and slow. I needed a medium to express the concepts of gaining more efficiencies out of the SI Process, thus put together this presentation to communicate the idea, which I'll only briefly touch on here. For more details, please download the presentation.