A project manager’s ruminations on quality
May 22, 2008
And what is good, Phædrus,
And what is not good…
Need we ask anyone to tell us these things?
…so runs the quote at the start of Robert Pirsig’s philosophical novel, Zen and the Art of Motorcycle Maintenance. In the book, Pirsig introduces his ideas on the metaphysics of quality in which he argues that quality is undefinable because it precedes analysis. Or, to paraphrase the quotation above: when we see something good (i.e of high quality) we just know it is good without having to analyse what makes it so. When I read the book some years ago, it seemed (to me at any rate) that Pirsig was using the term “quality” in a different and expanded sense from its usual meaning(s). Experience also confirms that using the word in any discussion leaves one open to being misunderstood because it means different things to different people. This brings me to my point: it is important for project managers to ensure that all stakeholders have a common understanding of quality. I expand on this thought below, drawing on what leading project management frameworks - PMBOK and PRINCE2 - have to say about quality.
It is worth starting with a couple of dictionary definitions of quality, if only to show how worthless they are from a project manager’s perspective:
1. An essential or distinctive characteristic, property, or attribute.
2. High grade; superiority; excellence
Not much help, right? In fact, it’s even worse: the second definition confuses quality and grade - two terms that PMBOK assures us are as different as chalk and cheese.
So what is a good definition of quality from the perspective of a project manager? The PMBOK, quoting from the American Society for Quality (ASQ), defines quality as, “the degree to which a set of inherent characteristics fulfil requirements.” This is clearly a much more practical definition for a project manager, as it links the notion of quality to what the end-user expects from deliverables. PRINCE2, similarly, keeps the end-user firmly in focus when it defines quality, rather informally, as, “fitness for purpose.”
The PMBOK/ASQ definition of quality, through its use of the word “degree”, suggests that any measure of quality should be quantitative - i.e. there should be a number associated with it; or, if not a number, at least a qualitative measure of quantity (high, medium, low, for example). PRINCE2 also insists on measurability through its notion of customer quality expectations and acceptance criteria, the former being high level, qualitative specifications and the latter quantitative, testable quality criteria. Although PMBOK does not formalise customer quality expectations, both methodologies insist on measurable quality criteria being defined as early in the game as possible. Basically these should be aimed at answering the question: how will end-users know they’ve got what they asked for?
Any project management methodology (including informal or homegrown ones!) must include processes that deal with quality. As might be expected, both PMBOK and PRINCE2 accord great importance to it. Quality Management is one of the nine knowledge areas in PMBOK. Further, PMBOK explicitly acknowledges that project quality is affected by balancing the three fundamental variables of scope, time and cost. In PRINCE2 quality is built in to a project up-front: right from start up (pre-initiation) through to initiation, product delivery and close. However, despite superficial differences in their approaches, both PMBOK and PRINCE2 treat quality in much the same way. Both emphasise the need to plan for quality at the outset (quality planning), put processes in place to ensure quality (quality assurance) and finally test for it when the deliverables (products in PRINCEspeak) are completed (quality control / quality review).
Regardless of your persuasion - or even if you’re a methodology agnost like me - quality is something you have to worry about on your projects. Project managers, unlike Pirsig, cannot afford to leave quality undefined. So, if your end-users’ eyes glaze over when they are asked about their quality expectations, understand it’s only because they don’t know what you mean; quality means different things to different people. Instead, ask them how they’ll know what is good and what is not good, and be sure to pay very close attention to what they say in reply.
Do project managers learn from experience?
May 18, 2008
Do project managers learn from their experiences? One might think the answer is a pretty obvious, “Yes.” However in a Harvard Business Review article entitled, The Experience Trap, Kishore Sengupta, Tarek Abdel-Hamid and Luk Van Wassenhove suggest the answer may be a negative, especially on complex projects. I found this claim surprising, as I’m sure many project managers would. It is therefore worth reviewing the article and the arguments made therein.
The article is based on a study in which several hundred experienced project managers were asked to manage a simulated software project with specified goals and constraints. Most participants failed miserably: their deliverables were late , over-budget and defect ridden. This despite the fact that most of them acknowledged that the problems encountered on the simulations were reflective of those they had previously seen on real projects. The authors suggest this indicates problems with the way project managers learn from experience. Specifically:
- When making decisions, project managers do not take into account consequences of prior actions.
- Project managers don’t change their approach, even when it is evident that it doesn’t work.
The authors identify three causes for this breakdown in learning:
- Time lags between cause and effect: In complex projects, the link between causes and effects are not immediately apparent. The main reason for this, the authors contend, is that there can be significant delays between the two - e.g. something done today might affect the project only after a month. The authors studied this effect through another simulated project in which requirements increased during implementation. The participants were asked to make hiring decisions at specified intervals in the project, based on their anticipated staffing requirements. The results showed that the ability of the participants to make good hiring decisions deteriorated as the arrival lag (time between hiring and arrival) or assimilation lag (time between arrival and assimilation) increased. This, the authors claim, shows that project managers find it hard to make causal connections when delays between causes and effects are large.
- Incorrect estimates: It is well established that software projects are notoriously hard to estimate (see my article on complexity of IT projects for more on why this is so). The authors studied how project managers handle incorrect estimates. This, again, was done through a simulation. What they found was participants tended to be overly conservative when providing estimates even when things were actually going quite well. The authors suggest this is an indication that project managers attempt to game the system to get more resources (or time), regardless of what the project data tells them.
- Initial goal bias: Through yet another another simulation, the authors studied what happens as project goals change with time. The simulation started out with a well-defined initial scope which was then changed some time after the project started. Participants were not required to reevaluate goals as scope changed, but that avenue was open to them. The researchers found that none of the participants readjusted their goals in response to the change, thus indicating that unless explicitly required to reevaluate objectives, project managers tend to stick to their original targets.
After discussing the above barriers to learning, the authors provide the following suggestions reduce these:
- Provide cognitive feedback: A good way to understand causal relationships in complex processes is to provide cognitive feedback - i.e feedback that clarifies the connection between important variables. In the simulation exercise involving arrival / assimilation delays, participants who were provided with such feedback (basically graphical displays of number of defects detected vs time) were able to make better (i.e. more timely) staffing decisions.
- Use calibrated model-based tools and guidelines: The authors suggest using decision support and forecasting tools to guide project decision-making. They warn that these tools should be calibrated to the specific industry and environment.
- Set goals based on behaviours rather than performance: Most project managers are assessed on their performance - i.e. the success of their projects. Instead, the authors suggest setting goals that promote specific behaviours. An example of such a goal might be the reduction of team attrition. Such a goal would ensure that project managers focus on things such as promoting learning within the team, protecting their team from schedule pressure etc. This, the logic goes, will lead to better team cohesion and morale, ultimately resulting in better project outcomes.
- Use project simulators: Project simulations provide a safe environment for project managers to hone their skills and learn new ones. The authors cite a case where introduction of project simulation games significantly improved the performance of managers on projects, and also lead to a better understanding of dynamic relationships in complex environments.
Although many of the problems (e.g. inaccurate estimates) and solutions (e.g. use of simulation and decision support software) discussed in the article aren’t new, the authors present an interesting and thought-provoking study on the apparently widespread failure of project managers to learn from experience. However, for reasons which now I outline, I believe their case may somewhat overstated.
Regarding the research methodology, I believe their reliance on simulations limits the strength, if not the validity, of their claims. More on this below:
- Having participated in project simulations before, I can say that simulators cannot simulate (!)important people-related factors which are always present in a real project environment. These include factors such as personal relationships and ill-defined but important notions such as organisational culture. In my experience, project managers always have to take these into account when making project decisions.
- Typically many of the important factors on real projects are “fuzzy” and have complex dependencies that are hard to disentangle. Simulations are only as good as the models they use, and these factors are hard to model.
On the solutions recommended by the authors:
- I’m somewhat sceptical about the use of software tools to supports decision making. In my experience, decision support tools require a fair bit of calibration, practice and (good) data to be of any real use. By the time one gets them working, one usually has a good handle on the problem any way. They’re also singularly useless when extrapolated to new situations - and projects (almost by definition) often involve new situations.
- Setting behavioural goals is nice in theory, but I’m not sure how it would work in practice. Essentially I have a problem with how a project manager’s performance will be measured against such goals. The causal connection between a behavioural goal such as “reduce team attrition” and improved project performance is indirect at best.
- Regarding simulators as training tools, I have used them and have been less than impressed. It is very easy to make a “wrong” decision on a simulator because information has been hidden from you. In a real life situation, a canny project manager would find ways to gather the information he or she needs to make an informed decision, even if this is hard to do. Typically, this involves using informal communication modes and generally keeping ear to the ground. The best project managers excel at this.
So, in closing, I think the authors have a point about the disconnect between project management practice and learning at the level of an individual project manager. However, I believe their thesis is somewhat diluted because it is based on the results of simulated project games which are limited in their ability to replicate complex, people-related issues that are encountered on real projects.
Show, don’t tell
May 14, 2008
My five year old son looked out through our living room window this morning and said, “Dad, I can’t write on the window today.”
“Hmm…,” I said, not really listening. I continued with my breakfast, looking down at the article I was reading.
He repeated, “I can’t write on the window.” Then added, “I did yesterday but I can’t today.” …And shortly after came the inevitable, “Why?”
I looked up and realised what he was talking about: there was no condensation on the window. Yesterday morning our windows had a thin veil of condensation on which he could write with his finger. But it was less humid today, so the panes were clear. There would be no writing today. Quite naturally, he wanted to know why.
I launched into a long-winded explanation about water vapour, temperature and condensation. He listened to me politely, but (obviously) didn’t really understand what I was going on about.
I stopped. There had to be a better way to explain this to a five year old.
I got up and went to the kitchen. “Let me show you something,” I said. The little fellow followed, with a somewhat dubious look on his face. I had lost credibility and he wasn’t about to cut me any slack.
I filled the kettle with some water and turned it on.
”Wait and watch,” I said, unfolding a step ladder so he could have a good look-see at what was happening.
He clambered on and watched as I held up a glass near the spout. I had his attention now. “Tell me when you see something,” I said.
“I see it now, I see it now,” he said, pointing excitedly at a sheen of condensation on the glass. “I can write on the glass!”
I launched into another explanation of water vapour, humidity and condensation. But this time I could see that I was getting through. He listened, and asked questions which I answered as best I could. It was great!
I was late for work this morning, but it was worth it. I’d been given a refresher course on a vital aspect of communication: show, don’t tell.
I’ll start with a story that may sound familiar to some of you.
A project team member - let’s call him Ernest - appears to be a major asset to the team. He is enthusiastic, volunteers to do stuff others don’t want to do and is always (seemingly) on the ball. The problem is most of his work is shoddy, riddled with errors and has to be redone. Worse, this is starting to have a negative knock-on effect on other deliverables. Other team members are having to clean up the mess and are beginning to resent it. Yet Ernest is blissfully unaware of the repercussions of his earnest efforts. By his estimation, he’s doing a fine job and, quite naturally, expects to be rewarded for it.
It is clear the project manager has to do something about Ernest. Trouble is she can’t. She has no say in the composition of his team, and the functional manager to whom Ernest reports reckons that Ernie is the best thing that happened to the company in a long time. Our PM’s in a pickle; one which I reckon isn’t an uncommon one.
There are two factors at work here:
- Ernest thinks he’s (way) more competent than he actually is.
- He isn’t aware of his shortcomings.
This story is an illustration of the Dunning-Kruger Effect, so named after the authors of this paper, published in the Journal of Personality and Social Psychology in 1999. In the paper the authors demonstrated, through a series of experiments, that less skilled individuals tend to:
- Overestimate their competence.
- Fail to recognise the extent of their lack of skills.
The paper suggests that improving the skills of such individuals not only increases their competence, but also helps them recognise and acknowledge their prior lack of skills - i.e. it improves their ability for self-assessment.
I should mention that not all authors agree with Dunning and Kruger (see this paper, for example). However, in a recent paper, Dunning and others appear to address many criticisms that were levelled at the original work. So the current academic consensus seems to be that the Dunning-Kruger effect is real.
So, going back to my original story, what can the project manager do about Ernest? Remember, Ernie can’t be relieved of his project duties because he has his manager’s backing.
The PM has a few options which I outline below:
- Provide Ernest with honest feedback. This has to be done with care as Ernest reckons he’s doing a great job. The PM should also be sure to provide Ernest with positive feedback where possible - compliment him on his enthusiasm, readiness to take on tasks etc.
- Channel Ernest’s positive qualities to good use. One way our PM could do this is to position less critical tasks as important, and suggest (or gently insist!) that Ernest take responsibility for them. This needs to be done carefully, as the PM needs to ensure that Ernest remains motivated.
- Suggest concrete actions that might help Ernest improve the quality of his work. This option is usually considered to be a non-starter given that there’s no time (or budget) for training in the middle of a project. However, there are a few other ways to achieve this: informal coaching, mentoring for example. These, however, are difficult to put into action because it is difficult to find time to coach or mentor while a project’s in progress. Besides, Ernest has to be willing to acknowledge and accept his shortcomings.
At all times, the PM has to be cognisant of the effect of the effect her actions (or inaction, for that matter!) on team morale. Plummeting morale is the last thing she needs in the middle of a project.
I’m sure most project managers would have had first-hand experience of dealing with individuals like Ernest. If so, they’ll know that fixing the problem is hard, especially if the project manager has no authority over team composition. Although I’ve suggested some strategies to deal with such individuals, I acknowledge that the solutions can be difficult, time consuming and expensive to implement; especially in stressed-out project environments.
As Dunning points out in this article, we’re strangers to ourselves. So we’re all potential victims of this effect (yes, I realise that includes me too!). Having said that, I leave you now to ponder this question: how do you rate your competence as a project manager?
An IT system tragedy in five limericks
May 9, 2008
This is a tale of distress
caused by a system on Access,
which failed one day
in a spectacular way,
leaving users in a bit of a mess.
File-based databases are prone
to crashing for reasons unknown.
So it was no surprise
to the IT guy.
“I knew it would happen,” he groaned.
The boss went totally ballistic,
turning red and apoplectic.
He told the IT guy,
“It will be good-bye
unless you get off your rear and fix it.”
On hearing he could be history,
the IT guy rolled up his sleeves
and tried to revive
the system that died,
but gray stayed the monitor screen.
The lesson to learn from this tale
is to backup your systems each day.
Disaster can strike
any time, day or night .
Be prepared! It’s the only way.