Wednesday 30 April 2008

MMFs and the IFM

There is a concept called minimal marketable features (MMF) popularized by the book Software by Numbers that looks at project/product viability in terms of return on investment. The thinking goes, at a very high level, implement those features that have a high value payback first, get them into production quickly, and they will act as an incremental funding model* for the rest of the program. The difficulty with the model, however, is with getting to critical mass.

For products that are not in new spaces, particularly if they are replacing systems already installed, there must be enough features present to not necessitate running the two systems (old and new) in parallel. For new product, there must be enough features present to make a compelling sales story. In both of these situations, this number is the set of MMF and truth be told it is always smaller than anyone is comfortable admitting to.

Think about MS Word. Hey no! That is unfair, everyone picks on Microsoft and this blog is a Google hosted blog. Let’s pick on Google! Blogspot is a great equalizer. It has allowed every Tom, Dick, and Matt to become published bloggers wherever they want in the world wide blogsphere. That alone has great value to some of us. The html editor here on Blogspot does not have all the features I use on my word processor of choice (MS Word). I can not do foot notes easily, for one. However, I can easily publish a blog that other people can read and where I can store ideas until later without fear of losing them. I can get other folk’s comments on them and do some rudimentary collaborating. These are the highest value features to me. I am actually glad that they did not wait until they had footnotes working before they made this much of the system available to me. And, as you can see, I have found a perfectly viable way of doing foot notes without any additional special editing tools.

If you needed to create a list of the MMFs for a blog editing and posting tool, most of us would have put down a word processing capability. What we really meant was text editing. Using the MMF model, the team could implement text processing capability, gotten the site live, then come back later and upgraded the system to a word processor (or not, maybe it is not actually ever needed).

The one drawback to MMFs that causes them not to be used as much as they should is exactly what they were designed to support. Laying out the MMFs both encourages and enforces some rigor about the value proposition of your features. Often times this is hard to make objective. Think about Blogspot again. If their goal was to corner the market on bloggers, what would be the most important feature? It actually is not any of the functional features of the site, but rather the ease and cost of entry into the entire concept. In the early days of blogging, you had to both buy blog software and sign up with a hosting entity upon which you could blog. This took money and commitment. Now, on blogspot, it takes seconds to create a blog and thusly the ease is high and the cost is zero. There are now literally millions of blogs out there that get started and never updated because it is free and simple to initiate.

I wonder, though, did anyone sit down and define the value to the organization of this feature? Monetization of Blogspot is similar to the rest of Google – ad revenue. If there are Billions of blogs that are never updated and consequently never looked at, their ad revenue is going to be negligible, but they still take disk space and infrastructure. Thus, ease of entry allows them to capture the market, but it may also have a negative impact on the organizations costs. These intangibles are much harder to equate to specific numbers and so quite challenging to integrate into the MMF model.

In the early days, before Google bought Blogspot, you can imagine the strategy sessions they might have had**:
“We need to take a commanding percentage of the consumer blog market. If we do, we will further our cause for blogs for the proletariat and creation of a world wide stage for every closet politician and every person of strong moral position.”
“True to that! Therefore the most important feature must be ease of initiation closely followed by a simple approach to rubbernecking on other people’s blogs so that inherent curiosity will keep people on the Blogspot site for longer and longer visits!”
“Guys, wait!”
“We will also need to keep it simple so that the common man can use it without a lot of training or documentation.”
“Without doubt, cause I hate writing documentation!”
“Guys, wait, listen!”
“What….”
“Yeah, what?”
“If everyone signs up and everyone uses this, how are we going to create enough space for them? Where are we going to put them? I only have this one server here….”
Silence.
More Silence.
“I know, if we get it up and running fast enough and take enough of the market quickly enough, someone big will become worried and will buy us to make sure they are in the market before someone else buys us. It can be their problem!”
“Great. Ease of use and Low cost of entry! Get as many people to sign up as fast as possible and demonstrate potential and hope Scotty here can hold her together long enough!”







* I love footnotes. I wish the blog software would support them though! The increment funding model is basically an accountant friendly approach to undertaking a project whose stakeholders know how important it is, but can not necessarily express it with discrete numbers. At a basic level, it says “spot me some cash and I will show you some value. As we progress towards our final product, I am happy to take little bits of funding at a time”. It is hard to do long term planning in this way, but the idea is that you will win your CFO’s heart (and pocket book with the healthy returns) and he will release the grip he has on the purse. This is a common model for startup funding.

** This is all fiction. I have never talked to the Blogspot guys, I am only imaging what might have happened in their executive offices.

Monday 28 April 2008

Release Planning

While using agile methods, we advocate defining a vision for the project that will align everyone and help them focus on the right underlying concepts and point them towards a shared product vision. This product vision is championed by the product owner and defines the “right thing”. When done right, we don’t need to define the vision in great detail, because everyone on the team understands* what is being targeted. The high level plan is then: develop towards the goal – undertaking only what is needed to realize the goal state, but remaining flexible enough to tune our progress as we better understand convergence towards the PO’s vision.

The draw back to this comes in the form of a question I hear far too often: How will I know when we will be done? Planning a release is critical for most organizations. There are always many costs and impacts that will are borne by tangential or ancillary groups within and without the organizations actually doing the development. These must be both planned and budgeted and can’t be taken lightly. The failure of many projects can be traced purely to the inability to integrate them into an operational environment, which can’t be done without planning and scheduling.

So, how do we ensure success? Clearly, it is simple if we timebox the release. When we get close to the end of the timebox, we move the sprints from releaseable to release and ensure that whatever we have done is hardened enough to go into production. However, how do we do it when there is a minimum number of features that need to be complete in order to create a viable release? That is a great question!




* Quick test for your team – ask any two people for their 30 second understanding of the vision / goal for the project. If the two elevator pitches agree, your team is spot on and your PO has done their job well; if not …. my guess is that you will also have problems achieving “done” on the project.

Tuesday 15 April 2008

on Mura, Muri, and Muda

(specifically, from Jim Womack’s e-letter )

My first reaction is that he is pretty much right on, particularly since his name is Womack.
Second reaction is to suggest that there would have been a much simpler way to come to the same conclusion, 20 years ago as well. (much simpler way)

Remember our favorite equation: P=T-OE (from Goldratt's Theory of Constraints in the Goal). You can drive OE to its limit (0), but that causes P to reach a max at T. If we assume that the effort is spent driving OE to 0, then we probably do not have cycles to increase T at the same time. Therefore, P's max value becomes T.

Comparing to the 3Ms, driving OE to its limit is the same as eliminating waste. Most of what everyone sees as "waste" falls in the OE category and so, it makes sense. Eliminating waste therefore logically stagnates profit at what ever level the organization optimally can achieve given whatever its throughput currently is. To release frozen capacity for profit (my new byline, I think), ignore the Muda, focus on increasing the Throughput. Mura and Muri, in their combination, are the constraints of the system. True, you can't optimize the organization by focusing on the T alone, you must address unnecessary OE, but focus first on the other two and once they are converging where you want them to, you will have plenty of time to focus on Muda.

And besides, any parent knows, muda always happens last.

Tuesday 1 April 2008

April Fool's ........ Not!

In an interesting flip, where as we always look at the world from a US centric point of view (IT or otherwise), with the fall of the value of the dollar around the world, there are many places with higher costs of living than the US. Check this out: Harvy-Nash Survey (use the link to download the survey - the tell-tale graph is on page 24). In case the link goes stale or you don't want to bother downloading the whole document, what it says is:

Figure 29. Top ten offshore destinations

  1. India
  2. China
  3. USA
  4. Malaysia
  5. Brazil
  6. Philippines
  7. Vietnam
  8. Poland
  9. Romania
  10. South Africa

India dominates the offshore league table for another year, capturing over half the market for offshore services of the respondents to the Harvey Nash survey. China and the USA are now very evenly matched in the eyes of the survey respondents but South Africa drops from fourth favoured destination last year to tenth this year. Canada drops just outside the top ten to 11th after occupying the fifth spot last year. Vietnam continues to perform strongly, maintaining 7th spot amongst much larger and more established outsourcing peers.

We may be the next decade’s Vietnam!