MIS 311 || very Flawless.

What are the 3 legs of the "stool of success"?` correct answers People, process and technology. What are IT certifications? correct answers Specialized training around specific products or ways of thinking (frameworks) Value depends on industry, company focus, where skills are needed in the world, Buzz words currently circulating What are some examples of IT certs? correct answers BTM, PMP, ITIL MCSD (Microsoft certified Software Designer) CISSP (Certified Information Systems Security Professional) pros and cons of certifications? correct answers Pro - Can make it easier to obtain since the interest is already there - May have friends or colleagues with it already Cons - Not necessarily a need in your job or industry - Based on specific software or system version that may be out of date soon - Not internationally recognized or known across the industry What is data modeling? correct answers Data modeling in software engineering is the process of creating a layout of information fields to structure and organize data A data model is a means of communication with users and a blueprint for the proposed database system for the organization Used to establish a single version of the truth what are the 4 levels of data modeling? correct answers - External Data Model (very high level) The external data model is a depiction of the database system from the viewpoints of individual user groups - Conceptual Data Model Clarify what information is important, how basic concepts are defined, and how these concepts related with each other. The high level picture helps gathering business requirements and clarifying understanding of basic concepts. A Conceptual data model usually takes the form of an Entity Relationship Diagram (ERD) - Logical Data Model More detailed levels of the diagram to show the layout of the data, the size and type of the data, and how various objects related to each other - Physical Data Model Indicates the technical details for implementation as a database or data structure What is an ERD correct answers An entity-relationship diagram, or ERD, is a chart that visually represents the relationship between database entities. ERDs model an organization's data storage requirements with three main components: entities, attributes, and relationships. Primary Key correct answers a unique identifier