Module 5: Data and Information Flashcards
The Data Pyramid
concept that visualizes the data-information-knowledge-wisdom hierarchy.
Information
a collection of processed data from a variety of sources. -meaning.
It’s hot outside. The time is 3:05 am. The customer’s name is Mike. The price of the item is $4.25.
Data
is continually aggregating and is not useful until it has been processed and is presented in a usable form. RAW FACTS or OBSERVATIONS. Data organized then information can be inferred.
18:23 45 mph 15% humidity Phoenix
Knowlegde
dynamic combination of experience, values, contextual information, expert insight, and grounded intuition that provides an environment and framework for evaluating and incorporating new experiences and information. - context
Wisdom
Knowing the right thing to do
Connectedness Wisdom
“the path to connected understanding” when interpreting data.
Flipped Pyramid
Big data and data science take us from seeing and learning from the past and present to looking at the future. We typically work within the pyramid knowing about the possible dynamics in the business and try to discover parameters of a dynamic that we are aware of.
Unstructured Data
complex and possibly stored in a format that is not easily decoded. Examples of unstructured data include data stored in text or video format, comments on a web page, text messages, and videos of presentations.
Most of the data stored today are unstructured and include things such as text, blogs, clickstreams, tweets, and audio. This data is not organized in a way that allows for analysis.
Structured Data
is coded in a way that makes it easy to convert into a form usable for analysis. Examples of structured data include contact information such as first name, last name, email address
Big Data
incapable of being processed by previous generations of analytical tools. estimated to grow 45% annually for the foreseeable future.
Information Systems
collections of data and information used to support decision-making in organizations. the term information systems will be used as a synonym for computer-based information systems.
Data Management
organization must understand the data it collects and its IT processes. Business requirements can change often; flexible architectures support these changes and allow for both data collection and analysis.
Three Core Variations of Cloud-Based Systems
Infrastructure as a service (IaaS)
Platform as a service (PaaS)
Software as a service (SaaS)
The IaaS Model
provides access in a virtualized environment and the computing resources are composed of virtualized hardware.If the client is responsible for licensing the operating system and managing the back-end networking, it is considered IaaS.
Paas Model
customers have access to a platform that supports the development and management of web applications. If the cloud service provider is responsible for licensing the operating systems and back-end storage and networking, it is considered PaaS.