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An Entity-Relationship (ER) model is commonly referred to as a semantic data model. It focuses on defining the entities, attributes of the entities, and the relationships between entities to capture the meaning of data in a domain. This model helps to visualize and understand the semantics of the data being represented.
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When a data field is private it is said to be?
When a data field is private, it is said to be accessible only within the class where it is defined. Other classes cannot access or modify it directly. This helps to maintain data encapsulation and restrict external interference with the data.
An attribute has what?
(1) A characteristic. In a word processing application, an underlined word would be said to have the underline attribute. In database systems, a field can have various attributes. For example, if it contains numeric data, it has thenumeric attribute.(2) In database management systems, the term attribute is sometimes used as a synonym for field.(3) In DOS systems, every file has a file attribute that indicate severalproperties of the file. For example, they indicate whether the file is read-only, whether it needs to be backed up, and whether it is visible or hidden.(4) A language construct that programmers use to add additional information (i.e., metadata) to code elements (e.g., assemblies, modules, members, types, return values, and parameters) to extend their functionalit
What is View Serializable in DBMS?
View Serializable is a correctness criterion in database management systems that ensures that the final result of executing concurrent transactions is the same as if they were executed one after the other. This property helps maintain data consistency and ensures that the database remains in a consistent state despite concurrent transaction execution. Transactions are said to be view serializable if their interleaved execution produces the same results as if they were executed sequentially.
What are the methods for collecting primary data?
METHODS OF COLLECTING PRIMARY DATA FOR RESEARCH IN BUSINESSCollecting information is the first step in the business research process, allowing you to know which course of action will improve your company's performance and services. Collecting primary data is one of the best ways to ensure that the information is credible and accurate. In this day and age, conducting primary research is easy with the different mediums that allow businessmen to freely reach to people. Following are the research methods and tips to gather primary data.What you need:Competent communication skillsCompetent observation skillsDesktop or laptop computer with internet accessPrinter with colored inkTelephone or mobile phone for making callsFirst of all, you need to decide what kind of information you need to gather. Once you have decided on that, you can use the following research methods to gather such information.InterviewsThere are three different ways to conduct interviews, and they are:Face-to-face interviews can be conducted by having question and answer sessions with one or more people. Ask people on the streets, go door-to-door to gather information, or make an appointment with an expert.Web-based interviews, on the other hand, make use of the internet to gather information so you will not have to the field for it. This latter method is also less costly and more convenient to use.Telephone interviews are very much similar to face-to-face interviews, but they are shorter in comparison and more structured. You may also have to send a letter to inform the interviewee in advance so they would expect your call.Surveys and QuestionnairesBoth are popular means of gathering data and can reach a large number of people, but they need to be designed and reedited repeatedly to make them acceptable to people. You can either print out copies to hand them out to people or send them to your respondents through email. Though this method is relatively cheap to conduct and requires no prior arrangements, surveys and questionnaires have the risk of low response rates and some may turn out to be incomplete.Focus group interviews and consumer panelsGather a group of people, specifically from your company's target market, and have a facilitator guide them in examining a certain product and asking their opinions on said product. This method is primarily used to determine whether a company's new product or brand name will be acceptable to their target market and to the general public.ObservationObservation is one of the simplest methods for primary data research and would not cost much. All you have to do is simply take note of the behavior of people towards your company's products and services. You can also try to observe how your competitors behave, and how they provide their products and services. Make sure that you are not alone in observing and have a number of colleagues to do the same thing so you can differentiate between fact and opinion.Collecting primary data maybe difficult and may take a long time to finish, but the end result is that you have the necessary information you can use to make improvements to your company's products and services.NadeemNadeemyou@yahoo.com
What is Biometric Identification system for ACCESS (BISA) information is stored on?
According to the US biometric military task force, biometric capabilities enabled US troops to capture more than 400 "high value individuals" in Iraq and Afghanistan in 2008. Assistant director of the task force Lisa Swan said: " very well we catch the bad people. " After several years of compiling large biometric databases containing credentials for more than 2.5 million Iraqis, US Military has been connected to technology. Fingerprints and irises are checked against the Biometric Verification or iron of the persons being requested before Iraq is allowed to pass through the checkpoints or to enter other facilities.
What is gap in math?
Gap involves using graphs and line plots. The gap is a piece of data with no data in it between two pieces of data with data in it(there can be more than one gap between data pieces) For example, say people were being asked about their favored color. Out of ten people, 3 said yellow, 0 said orange, 4 said blue, and 3 said green. Orange would be the gap in the data.
When a data field is private it is said to be?
When a data field is private, it is said to be accessible only within the class where it is defined. Other classes cannot access or modify it directly. This helps to maintain data encapsulation and restrict external interference with the data.
What services do the data mining company provide?
Data Mining companies provide such services as mining for data and mining for data two electric bugaloo. They will often offer to resort to underhanded tactics to mine said data.
What is it called when data or a file resource that is immediately available?
A data or file resource that is immediately available is said to be: Online or a online data or file resource.
When data is recorded in two or more independent files the data is said to be what?
mirrored (if duplicated) or striped (if split)
What is a set of data gathered?
A set of data that has been gathered and organised, could be said to be a database or a dataset.
What are some of the characteristics of enterprise data?
Some of the characteristics of enterprise data include the ability to create precise data, as well as the ability to quickly and efficiently retrieve said data. This can apply to both applications and communication.
You have renamed your file names on your psp game save data how do you get the data back?
Rename the game save back to what it was. If you cannot remember, save the old data to your computer, then make new save game data of said game and rename your old data to the new save data's name.
What experiments did Watson and Crick do?
Watson and Crick did not conduct experiments of their own to discover the structure of DNA. Instead, they used existing data, particularly Franklin's X-ray diffraction images, to propose the double helix model of DNA in 1953. Their model was based on analyzing and interpreting the data with the help of Chargaff's rules.
What does the Unix command 'dd' stand for?
dd is an abbreviation for "data definition." It is often jokingly said to stand for "destroy data."
Who said errors using inadequate data are much less than those using no data at all?
yoggi berra
Does Pokemon GO use a lot of data?
No it has been determined that an hour of use on Pokemon GO uses about 12 MB of data. Compared to GB this is a very minimal use of your data. It is said that your phone battery will go quicker than your data plan.
