Utility
+ Usability + Learnability
In over twenty years of experience with high-tech products, TFH has
found that these are the three legs of an imaginary stool that make or
break a product. In an industry obsessed with IPO's and instant riches,
it is often believed that if the product attains utility, users will
put up with usability flaws and learnability difficulties.
Not so and not any more! A good user experience, that much-maligned
and often misused phrase, can only be obtained by keeping the right balance
among these three legs. If so, why do so many products suffer from lack
of balance that leads to a total crash in the marketplace. There are
two reasons for this lopsided state of affairs:
1. Lack of a well-established process
2. Absence of well-assigned responsibilities
1. Lack of a Well-Established Process
More often than not, high-tech products are the outcome of mad races
by engineering teams eager to prove that they have the next great
technology. These teams believe that they are designers who are capable
of designing
and implementing the right product with the latest and greatest technology.
So, they apply the engineering methodologies that they know so well
and hire a graphic designer, long after all engineering decisions
have been made, to slap on some visual interest to their unchangeable
product.
The sad truth is that engineering methodologies are not empirical, that
is, they do not include input from the people that the product is intended
for. And even with a team that has somewhat and somehow been convinced
that this input is important, the typical scenario is to run some user
tests when it is too late and what is learned in the test cannot be implemented
because it would greatly affect the schedule of the product.
The moral of this situation is that the high-tech industry needs to
change its process to a more user-oriented one, from conception to specification
to final polish. It is a tall order, but as the industry matures and
becomes more market driven, as opposed to engineering
driven, it is also
inevitable. Those who do not change their process will simply not survive.
2. Absence of Well-Assigned Responsibilities
A well-defined process requires implementers who understand the various
stages of the process and vigilantly carry out what each stage requires.
The discussion of whether engineers need to be retrained or marketing
experts need to step in could go on forever, while great product ideas
linger. What will bring about the much-needed change in the industry
is a top-down approach by the general managers or chief executive officers
who will insist on the empirical approach every step of the way.
The good news is that there is a very well-trained cadre of professionals
that hail from a discipline known as computer-human interaction
design (CHI).
They understand the empirical process and would make excellent advocates
and overseers of the process. The bad news is that these professionals
have by and large been treated as adjuncts to the main engineering effort
at most places (a few companies excepted). Because of this treatment
as second-class citizens, these professionals have also not stepped up
to the plate to take on the responsibility of becoming key figures in
the definition of a product.
The Process for a Well-Balanced Product
The empirical process advocated here does not minimize the creativity
in both initial product conceptualization and continuous product enhancement.
What it does prevent is the technology for the sake of technology.
In order to have technology that is designed for humans, it is imperative
to bring in the humans to establish the utility of the product at the
beginning (market research) and get hands-on input every step of the
way to develop the optimal usability and learnability (user
testing).
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