A collection of information technology and consulting knowledge
Category: Information Systems
Information Systems is an academic study of systems with a specific reference to information and the complementary networks of hardware and software that people and organizations use to collect, filter, process, create and also distribute data. … Information systems are also different from business processes.
denodo 7.0 saves some manual coding when building the ‘Base Views’ by performing some initial data type conversions from ANSI SQL type to denodo Virtual DataPort data types. So, where is a quick reference mapping to show to what the denodo Virtual DataPort Data Type mappings are:
ANSI SQL types To Virtual DataPort Data types Mapping
ANSI SQL Type
Virtual DataPort Type
BIT VARYING (n)
CHARACTER VARYING (n)
DECIMAL (n, m)
NUMERIC (n, m)
TIMESTAMP WITH TIME ZONE
VARCHAR ( MAX )
ANSI SQL Type Conversion Notes
The function CAST truncates the output when converting a value to a text, when these two conditions are met:
You specify a SQL type with a length for the target data type. E.g. VARCHAR(20).
And, this length is lower than the length of the input value.
When casting a boolean to an integer, true is mapped to 1 and false to 0.
Every day, businesses
are creating around 2.5 quintillion bytes of data, making it increasingly
difficult to make sense and get valuable information from this data. And while
this data can reveal a lot about customer bases, users, and market patterns and
trends, if not tamed and analyzed, this data is just useless. Therefore, for
organizations to realize the full value of this big data, it has to be
processed. This way, businesses can pull powerful insights from this stockpile
And thanks to artificial
intelligence and machine learning, we can now do away with mundane spreadsheets
as a tool to process data. Through the various AI and ML-enabled data analytics
models, we can now transform the vast volumes of data into actionable insights
that businesses can use to scale operational goals, increase savings, drive
efficiency and comply with industry-specific requirements.
We can broadly classify
data analytics into three distinct models:
Let’s examine each of
these analytics models and their applications.
Analytics. A Look Into What happened?
How can an organization
or an industry understand what happened in the past to make decisions for the
future? Well, through descriptive analytics.
Descriptive analytics is
the gateway to the past. It helps us gain insights into what has happened.
Descriptive analytics allows organizations to look at historical data and gain
actionable insights that can be used to make decisions for “the now” and the
future, upon further analysis.
For many businesses,
descriptive analytics is at the core of their everyday processes. It is the
basis for setting goals. For instance, descriptive analytics can be used to set
goals for better customer experience. By looking at the number of tickets
raised in the past and their resolutions, businesses can use ticketing trends
to plan for the future.
Some everyday applications of descriptive analytics include:
Reporting of new trends
and disruptive market changes
Tabulation of social
metrics such as the number of tweets, followers gained over some time, or
Facebook likes garnered on a post.
Summarizing past events
such as customer retention, regional sales, or marketing campaigns success.
To enhance their decision-making
capabilities businesses have to reduce the data further to allow them to make
better future predictions. That’s where predictive analytics comes in.
Analytics takes Descriptive Data One Step Further
Using both new and
historical data sets predictive analytics to help businesses model and forecast
what might happen in the future. Using various data mining and statistical
algorithms, we can leverage the power of AI and machine learning to analyze
currently available data and model it to make predictions about future
behaviors, trends, risks, and opportunities. The goal is to go beyond the data
surface of “what has happened and why it has happened” and identify what will
analytics allows organizations to be prepared and become more proactive, and
therefore make decisions based on data and not assumptions. It is a robust
model that is being used by businesses to increase their competitiveness and
protect their bottom line.
analytics process is a step-by-step process that requires analysts to:
deliverables and business objectives
Collect historical and
new transactional data
Analyze the data to
identify useful information. This analysis can be through inspection, data
cleaning, data transformation, and data modeling.
Use various statistical
models to test and validate the assumptions.
predictive models about the future.
Deploy the data to guide
your day-to-data actions and decision-making processes.
Manage and monitor the
model performance to ensure that you’re getting the expected results.
Predictive Analytics Can be Used
campaigns and reach customer service objectives.
Improve operations by
forecasting inventory and managing resources optimally.
Fraud detection such as
false insurance claims or inaccurate credit applications
Risk management and
Determine the best
direct marketing strategies and identify the most appropriate channels.
Help in underwriting by
predicting the chances of bankruptcy, default, or illness.
Health care: Use
predictive analytics to determine health-related risk and make informed
clinical support decisions.
Analytics: Developing Actionable Insights from Descriptive Data
helps us to find the best course of action for a given situation. By studying
interactions between the past, the present, and the possible future scenarios,
prescriptive analytics can provide businesses with the decision-making power to
take advantage of future opportunities while minimizing risks.
Intelligence (AI) and Machine Learning (ML), we can use prescriptive analytics
to automatically process new data sets as they are available and provide the
most viable decision options in a manner beyond any human capabilities.
When effectively used,
it can help businesses avoid the immediate uncertainties resulting from
changing conditions by providing them with fact-based best and worst-case
scenarios. It can help organizations limit their risks, prevent fraud,
fast-track business goals, increase operational efficiencies, and create more
Bringing It All
you can see, different big data analytics models can help you add more sense to
raw, complex data by leveraging AI and machine learning. When effectively done,
descriptive, predictive, and prescriptive analytics can help businesses realize
better efficiencies, allocate resources more wisely, and deliver superior
customer success most cost-effectively. But ideally, if you wish to gain
meaningful insights from predictive or even prescriptive analytics, you must
start with descriptive analytics and then build up from there.
A Denodo virtualization project typically classifies the
project duties of the primary implementation team into four Primary roles.
Denodo Data Virtualization Project Roles
Data Virtualization Architect
Denodo Platform Administrator
Data Virtualization Developer
Denodo Platform Java Programmer
Data Virtualization Internal Support Team
Project Team Member Alignment
While the denodo project is grouped into security permissions and a set of duties, it is import to note that the assignment of the roles can be very dynamic as to their assignment among project team members. Which team member who performs a given role can change the lifecycle of a denodo project. One team member may hold more than one role at any given time or acquire or lose roles based on the needs of the project.
virtualization Project Roles Duties
The knowledge, responsibilities, and duties of a denodo data
virtualization architect, include:
A Deep understanding of denodo security features
and data governance
Define and document5 best practices for users,
roles, and security permissions.
Have a strong understanding of enterprise
Defines data virtualization architecture and
Guides the definition and documentation of the
virtual data model, including, delivery modes, data sources, data combination,
The knowledge, responsibilities, and duties of a Denodo Platform
Denodo Platform Installation and maintenance, such as,
Installs denodo platform servers
Defines denodo platform update and upgrade policies
Creates, edits, and removes environments, clusters, and servs
Manages denodo licenses
Defines denodo platform backup policies
Defines procedures for artifact promotion between environments
Denodo platform configuration and management, such as,
Configures denodo platform server ports
Platform memory configuration and Java Virtual Machine (VM) options
Set the maximum number of concurrent requests
Set up database configuration
Specific cache server
Authentication configuration for users connecting to denodo platform (e.g., LDAP)
Secures (SSL) communications connections of denodo components
Provides connectivity credentials details for clients tools/applications (JDBC, ODBC,,,etc.)
Configuration of resources.
Setup Version Control System (VCS) configuration for denodo
Creates new Virtual Databases
Create Users, roles, and assigns privileges/roles.
Execute diagnostics and monitoring operations, analyzes logs and identifies potentials issues
Manages load balances variables
The Data Virtualization Developer role is divided into the
the knowledge, responsibilities, and duties of a Denodo Data
Virtualization Developer, by sub-role, Include:
The denodo data engineer’s duties include:
Implements the virtual data model construction
Importing data sources and creating base views,
Creating derived views applying combinations and
transformations to the datasets
Writes documentation, defines testing to eliminate
development errors before code promotion to other environments
The denodo business developer’s duties include:
Creates business vies for a specific business
area from derived and/or interface views
Implements data services delivery
The denodo application developer’s duties include:
Creates reporting vies from business views for
reports and or datasets frequently consumed by users
Denodo Platform Java
The Denodo Platform Java Programmer role is an optional,
specialized, role, which:
Creates custom denodo components, such as data sources, stored procedures, and VDP/iTPilot functions.
Implements custom filters in data routines
Tests and debugs any custom components using Denodo4e
Internal Support Team
The denodo data virtualization internal support team’s duties
Access to and knowledge of the use and trouble
of developed solutions
Tools and procedures to manage and support
project users and developers
Denodo provides some general Virtual Dataport naming
convention recommendations and guidance.
First, there is the general guidance for basic Virtual Dataport object
types and, secondly, more detail naming guidance recommends.
Information Technology (IT) Skill badges are becoming more prevalent in the information technology industry, but do they add value? I will be in the past I have only bothered with certifications where my clients or my employer thought they were valuable. At some point in your career experience should mean more tests and training. So, perhaps is time to consider the potential value of IT Skills badges (Mini-certification) and the merits behind them.
What Are Information
Technology (IT) Skills Badge?
IT Skills badges are recognized as
mini-certification, which are portable. IT Skills badges are achieved when an
individual completes a project, completes a course, or make a distinguished
contribution towards code repository on either GitHub or elsewhere. When a
person earns this kind of certification, the IT Skills badges can be stored in
a digital wallet. An individual can use it by either including it to his/her
LinkedIn profile or website. The issuer has the authority of editing the
badges. This feature is designed to bolster credibility.
Research shows that many IT job
applicants show badges as an added advantage in his/her skills. IT skills badge
are not a sure bet in job hunting that an applicant will land on that
particular job because most job recruiters don’t focus on them.
Many IT industries want validated skills
before hiring an applicant. IT Skills badges are complementary to certificates,
but IT Skills badges can’t in any way replace certifications. Individuals with
convectional certifications have high chances of landing on premium pay. As a
result, badges don’t ensure the owner a pay boot in his/her job.
How Do IT Skills
Badges Differ From A Certification?
Certifications are considered evidence
by many of an individual’s skills. Does this mean that any other credential
systems aren’t necessary for proving your skills? IBM’s study shows that
technology is growing at a faster rate in areas like artificial intelligence,
big data, and machine learning and the updating and creation of certifications
can lag because of the time required to update or developing certifications is
Another difference when it comes to
comparison between IT Skill Badges and certification is that certifications are
seen to be more expensive to both employers and employees. It is costly to
achieve certification, and a lot of study time and books may be required. An
in-depth done survey shows that employers are willing to pay a good portion to
the right certification. Certificate value is drastically increasing value
yearly as compared to badges.
Clients of IT companies consider
engaging in a contract with the company after making sure that the company has
a specific number of employees with specified certifications. IT Skills badges
are at a disadvantage for hiring consideration. Most hiring managers, the likes
of Raxter Company, don’t know the benefit of badges or even what IT Skills
badges can do with IT Skills badges. IT Skills badges are new in the market;
hence, most employers have little information about IT Skills badges. For
instance, an applicant who in the past years has worked for IBM Company
presents an IBM badge to Raxter interview panel, and the panel will not know
what it means.
In the case of Grexo Technology
Group’s CEO, Bobby Yates, IT services Company in Texas doesn’t know the
apparent value of IT skills badge. He further challenges it by saying that most
applicants have presented the badges to him. But he surely doesn’t know the
importance of them towards his requirements from the applicants. He further
says that he doesn’t consider badges as a valuable hiring tool as compared to
Dupray’s Tremblay, on the other hand, seconds the elimination of badges as an essential tool for hiring by saying that he will not know if the applicant is cheating to him. As a result, he values the certification as a real prove of skills towards IT.
How To Obtain IT Skills Badges
Most Companies’ hiring panels
consider IT Skills badges as nothing towards job requirements. But some
companies’ managers like O’Farril and others challenge them by finding them
worthy when it comes to IT workers investment. CompTIA’s Stanger, on the other
hand, backs badges by referring to them as a complement to a basket of
certifications, good resumes, and real-world towards job experience. He adds by
saying that it is a form of strengthening the education chain. Raxter on his
personality considers IT Skills badges as a selling point. As a result, IT
Skills badges are essential to present to some recruiters.
The following are
the top five tips that will aid an individual towards his carrier advancement
in getting the most in IT skills badges.
1. Avoid listing badges which are
easily obtained. Anything that can take less than 40 hours to complete it is
unworthy of mentioning it in your professional resume.
2. Always consider those courses
that directly aline with the type of jobs for which you are applying. IT skills
badges that directly complements to your job requirements are worth taking.
Irrelevant badges may, to an extent, reduce the chances of being recruited.
3. Make sure to pair the badges
attained with your education or real working experience.
4. Don’t insist on the importance
behind your badges. Not everybody will like to hear. Real work experience
always takes the lead.
5. If you can’t defend your knowledge,
experience, and skills or hiring managers will consider unqualified. ITSkill
badges and certifications show that you had enough knowledge to pass the qualifications,
but employees want people who can and will excel at doing the work as part of a
Do IT Skills badges have value in the hiring process?
IT skills complement IT certification and act as an added advantage in hiring panel, mostly when your certification is almost similar to the other candidates. IT Skills badges add some value towards a good resume, real job experience, and certifications. Some recruiters consider IT Skills badges worthy when it comes to the hiring process. Recruiters think them as a selling point.
So it’s essential to take IT Skills
badges that relate to your job application to spice your application form.
Remember to keep in mind the top five tips when you decide to have one. In
other words, IT Skills badges are somehow worthwhile to consider in IT workers
IT skills badge from a social media perspective
Social Media badges are virtual
validator of successful completion of a task, skill, or educational objective. IT
Skills badges can either be physical or digital depending upon what other
people in a particular community value or market. IT Skills badges are more
prevalent in a collaborative environment, and social media as well as portals
and learning platforms, including team participation, certification, degrees,
and project accomplishments.
In conclusion, many IT skills are
available for your earnings. To gain more on IT Skills badges, you can visit
IBM, Pearson VUE, a global learning company, and others who have partnered in
offering IT Skills badges. You will be able to find a range of IT Skills badges
from which to choose.