Ah, internal data and external data are like two different colors on your palette. Internal data is like the colors you mix together yourself, it comes from within your organization. External data, on the other hand, is like the colors you find in nature, it comes from outside sources like market research or public databases. Both types of data are important for creating a beautiful picture of your business, so don't be afraid to blend them together to make something truly special.
An external source of data is a connection to an external data base and contains data that does not change much. The difference of internal source of data is data that can change because it comes from sources inside an organization including inventory transactions, purchase orders, and sales.
A context diagram focuses on showing interactions between a system and external entities, such as users or other systems, without detailing the internal workings. Data stores are considered internal to the system, so they are not shown in a context diagram to keep the diagram simple and to maintain a high-level view of the system's boundaries and connections.
An internal data schema is the structure or blueprint that defines how data is organized and stored within a database system or application. It typically includes details such as data types, relationships between different data elements, and rules for data validation and storage. Having a well-defined internal data schema is essential for ensuring data integrity, efficiency, and consistency in data processing.
Advantages of internal data include control over the collection process, access to proprietary information, and potential for higher accuracy. However, disadvantages may include limited quantity of data, potential bias, and lack of external validation.
External users demand information from the organisation inorder to make investment decisions.If the organisation is doing well it attracts more investors thus increasing the wealth of an organisation.
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Mapping between internal conceptual and external views involves creating a bridge between how data is structured within a system (internal conceptual view) and how it is presented or interacted with by users or external systems (external view). The internal conceptual view represents the organization’s data model, including entities, relationships, and attributes, while the external view focuses on user interfaces and experiences. This mapping ensures that the underlying data is effectively aligned with user needs and applications, facilitating data accessibility and usability. Such alignment is crucial for effective data management and system design.
In computers, the bus is the subsystem that transfers data between internal parts of the computer, or from internal parts of the computer to external parts, or between two computers. External bus can be parallel (ATA (and all of its derivations), IEEE-488, SCSI) or serial (USB, FireWire, etc.).
An external source of data is a connection to an external data base and contains data that does not change much. The difference of internal source of data is data that can change because it comes from sources inside an organization including inventory transactions, purchase orders, and sales.
Internal SortingExternal sortingIn internal sorting all the data to sort is stored in memory at all times while sorting is in progress.In external sorting data is stored outside memory (like on disk) and only loaded into memory in small chunks.The internal sorting methods are applied to small collection of data. The External sorting methods are applied only when the number of data elements to be sorted is too large. internal sorting takes input only which can be fit into its memory...i.e. it takes small inputexternal sorting can take as much as large input…Internal sort is more flexible as we can alter or update data before and after performing internal sort whereas the same doesn't hold true for external sort.internal sorting is independent of time to read/write a recordexternal ids dependent on the same
Data storage outside (external) or inside (internal) the computer. The location of where the information (files, etc) on your computer system/network.
Internal data sources refer to information generated within an organization, such as sales records, customer databases, and employee performance metrics. External data sources, on the other hand, are data obtained from outside the organization, including market research reports, social media analytics, and industry publications. Both types of data are crucial for informed decision-making, as they provide insights into internal operations and external market trends. Utilizing a combination of internal and external data can enhance strategic planning and improve overall business performance.
external sources include:- communication media supplier customer feed back banks financial instutation internal sources include:- financial report sales data transport data storage data
A data bus connects different parts of a circuit and comprises a group of parallel wires, each one carrying a different logic signal.
internal and external
logical data : refer to the immunity of the external scheme towards changes in the conceptual scheme.physical data: refer to the immunity of the conceptual scheme towards changes in the internal scheme.
Internal sorting it means we are arranging the number within the array only which is in computer primary memory. External sorting it is the sorting of numbers from the external file by reading it from secondary memory.