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Description
Flashcards by Matt Merlina, updated more than 1 year ago
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Created by Matt Merlina
about 9 years ago
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| Question | Answer |
| Data | Raw facts that occur in an organization |
| Information | data that has been converted into a form that is meaningful |
| is to convert data into information | What is the goal of using Information Systems? |
| Attributes or Field | a characteristic of a person, place, object, event, or idea |
| File/Table | a collection of fields that describe a person, place, object, or idea |
| Record/Observation | is specific occurrence of a set of related fields. |
| Database | is a group of related files or tables. This is how the way data is stored affects the ability to create information from data. |
| Organization is the reason why you can find data and how quickly you can find it | How does organization affect how you can extract value from data? |
| Relational Database | creating separate tables and relating them together. |
| Redundancy | show the same data more than once in the related tables. |
| common field | same field is stored in the related tables |
| Entity Relationship | is the path from one table to another, based on shared attributes |
| More info available non-redundant data consistent flexible with queries Easily findable | 5 Advantages of Databases |
| Key | is the unique piece of data that identifies the record |
| Primary Key | is a field or collection of fields whose values uniquely identify each record in a table |
| Concatenated Key | More than one/same primary key |
| Foreign Key | field that is found within a table that also appears as the primary key of another table |
| Database Management System | software that lets us create databases and manipulate the data in them. Ex: tables, queries, forms, reports |
| Data Normalization | logical process used to model data and the logical relationships between data. -Defines entities - Identifies keys that identify different records |
| Hierarchical file Organization | Lots of Info Redundant Hard to get inside folders |
| Because with large amounts of data, it is easier to split them up and connect them together | Why is data kept in different tables in a database? |
| They related by a common field | How are tables related together in a database? |
| Limited amount of data-entry Redundant Data Hard to find values | What are the disadvantages of Excel? |
| Webpage | a document that can be accessed through the internet and displays through a web browser |
| HTML | Hyper Text Markup Language |
| URL | The address of a webpage. Universal Resource Locator |
| Web Browser | a software application for retrieving and presenting information |
| Cascading Style Sheets | What does CCS stand for? |
| Make your own keys calculated fields should be numbers smallest amount of characters | Rules for making tables and keys |
| <img src="Matt.jpeg" alt="Description"<img/> | Picture on html |
| <a href="http://yahoo.com">yahoo<a/> | Website on HTML |
| <Ul> <li>Matt<li/> <ul/> | Bullet, unordered list -Matt |
| <ol> <li>Matt<li/> <li>Merlina<li/> <ol/> | Ordered, Number list 1. Matt 2. Merlina |
| <dl> <dt>Merlina<dt/> <dd>He's the best<dd/> <dl/> | Terms with Descriptions Merlina He's the best |
| <t>.......<t/> <Meta charset='utf-8"> | What doe the Head tags contain? |
| <doctype html> <html lang="en"> | What tag starts a webpage? |
| <body> <h1> <p><p/> <h1/> <body/> <html/> | What does the body contain? |
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