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Most programming languages you can proceed and learn, but it occurs to that a
QlikView developer is something you have to be different. By that I mean that
you have to have skills in a large number of areas – and a failing in one can negate
brilliance in another.
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As this is what some people think the expanse of the requirements are it is where
I shall start. Solid skills in this area are a must as the QlikView developer requires
to code in four or five dissimilar languages at practically the same time. You have
the load script syntax, SQL statements (in various flavors), QlikView expressions,
Set Analysis and then VBA if you need macros or advanced automation. Whilst it
is true that a fine SQL knowledge will get you through the load script and those
with fine Excel skills will find no fright in expressions; it is the ability to do all at
once that is vital. The direction to work in a case sensitive environment and vision
to conceive solutions to problems where the standard methods do not deliver are
QlikView documents where the data merely hasn’t been understood. Classic
errors include summing percentages and incorrect chart option (often a data
understanding issue rather than a plan one). A degree in maths or statistics is not
necessarily need– just a good understanding of (and respect for) the rules of data.
Bad Chart Choice
Understanding the Business
For a QlikView document (or set of documents) to be of maximum use to a
business it should present insight from every area of that business. This needs the
QlikView developer to have an actual understanding of the business and the
processes that make it appear. Even if the developer is not the analysts to convert
the requirements into inspired visualizations takes a few levels of knowledge.
Experience Across Companies
Someone who has been in a job for some time will know that organization well
(ticking the box above) but this can lead to a tendency not to think outside the
box. All too often I am asked to replicate existing Crystal or Excel reports for a
client as “that is what we regularly report”.
Also, there is an extensive difference in what is important to people in distant
types of businesses. Only experience in many vertical markets can adorn the
QlikView developer to know what is probable to be required on any particular
dashboard they create.
There are a number of evolving best practices that can make a great impact on
the performance and usability of a QlikView document. These span from data
model design concepts, coding standards and interface design rules. The QlikView
developer requires to keep up with all these best practices in order to stay on top
of their game.
The Ability to Ask
Often the requirements that are set for the developer for a QlikView document
are sparse. I have been given little more than a database connection string to use
an instance. Having built many solutions gives you an idea of the sort of thing
people are likely to want to see – but it’s easy to assume wrong. The only way to
get things right is to sit the main sponsors down with a pad of paper or flip-chart
and ask them what it is that they need to achieve.
This means that as the person coding a dashboard you also need people skills. Not
always the first thing you connect with someone building IT solutions. However,
to gain the trust of the IT department and to challenge the assumptions of the
finance director needs just that. A typical QlikView project should include people
from many areas of a business, and the person doing theerect is often required to
be the lynchpin between these individuals.
So to sum up, the QlikView Developer has to be someone that own many
different skill – and knows when to apply each of them. Added to what I have
placed out above, there are also those skills required in just about any role these
days – the capability to work under pressure and to insane deadlines.
It sounds like a pretty tall order – but it is a dare that us QlikView developers love
to try and meet on a daily basis.
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