To understand the fundamentals of database systems, we will start by introducing some basic concepts in this area. Everybody uses a database in some way, even if it is just to store information about their friends and family.
That data might be written down or stored in a computer by using a word-processing program or it could be saved in a spreadsheet. However, the best way to store data is by using database management software. This is a powerful software tool that allows you to store, manipulate and retrieve data in a variety of different ways. Most companies keep track of customer information by storing it in a database.
This data may include customers, employees, products, orders or anything else that assists the business with its operations. Data are factual information such as measurements or statistics about objects and concepts. We use data for discussions or as part of a calculation.
Data can be a person, a place, an event, an action or any one of a number of things. A single fact is an element of data, or a data element.
If data are information and information is what we are in the business of working with, you can start to see where you might be storing it. Data can be stored in:. All of these items store information, and so too does a database.
Because of the mechanical nature of databases, they have terrific power to manage and process the information they hold. A database at a school, for example, contains data about students, e. A computer at the school processes new student data and then sends advising appointment and ID card information to the printers. Difference Between Database and Schema.
Differences Between Fields and Records in a Database. You must be logged in to post a comment. Sequentially b. Explain the various access rights that can be provided to users to access a file. What are the important criteria for choosing a file organization. Differentiate between the master file and the transaction file. Is there a difference between Possession and Mere possession? From a service perspective, what is an important difference between a symmetric-key system and a public-key system?
Distinguish between a monolithic and micro kernel. Explain the difference between an operating system OS and an application software.
What is the difference between Judgment and Order? What is the difference between Open source and Public domain software. What is the difference between SRS document and design document? What are the contents we should contain in the SRS document and design document. Define Network Configuration. What are the various types of the network configuration, explain briefly with neat diagram.
You have to open or be in front of information container first, before seeing the data. In the digital world, this is often called document management, content management. The challenge of these information containers is that you need to change the whole container version once you modify one single piece of data inside it. And each information container holds duplicated information from a data element.
Managing these data elements in the context of each other allow people to build information from any viewpoint — project oriented, product oriented, manufacturing oriented, service oriented, etc.
The data remains unique, therefore supporting much closer the single version of the truth approach. Personally I consider the single version of the truth as a utopia, however reducing the amount of duplicated data by having a data-oriented approach will bring a lot more efficiency.
In my next post, I will describe an example of a data-oriented approach and how it impacts business, both from the efficiency point of view and from the business transformation point of view.
As the data-oriented approach can have immense benefits. However, they do not come easy. You will have to work different. An important point to discuss is that this data-oriented approach requires a dictionary, describing the primary data elements used in a certain industry. The example below demonstrates a high-level scheme for a plant engineering environment.
Data standards exist in almost any industry or they are emerging and crucial for the longevity and usage of the data. I will touch it briefly in one of the upcoming posts, however, for those interested in this topic in relation to PLM, I recommend attending the upcoming PDT Europe. If you look at the agenda there is a place to learn and discuss a lot about the future of PLM.
Comments feed for this article. August 19, at am. This post is really a nice and succinct problem definition of files- and data-oriented approaches. There exists already various solution that replace MS-Office for different activities during the product development from Idea management and Requirement management to sales and service. They are also partly integrated in PLM systems. However, everything will be more complicated as we move from MS-Office based activities towards ECAD, MCAD, calculation, programming, … I think, a hybrid solution with semi-automatic data extraction can be practicable and acceptable in short- and midterm.
Also a model based product development will be probably necessary in order to take full advantage of the hybrid solution. In this example m mass and a acceleration are two knowledge elements information and their multiplication is the knowledge process to create another knowledge element F force. Best regards Jos.
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