A functional dependency describes a relationship between the attributes of an entity such that the value of one attribute is dependent on the value of some other attribute and is very well affected by it.
There can be various sources of information that define functional dependency. For instance, an attribute age can define the functional dependency with the attribute ID. One cannot include the voter ID if they are not above 18 years of age.
Similarly, the attribute date of joining can define the functional dependency with the attribute experience, as the experience in a particular organization can be calculated by subtracting the joining date fro the current date.
It known as the smart systems
It make decision by describing and analyzing the available data in a predictive or adaptive manner thereby performing an efficient and smart actions based on that analysis
A lot of smart systems evolved from micro systems
Answer:
CRM system can help customers about the service supplied.
Explanation:
CRM stands for Customer Relationship Management and CRM system is a useful tool for communicating with customers.
CRM can keep the data about the order provided by the customer and has updated info about its status.
For example, if the customer of a logistics company wants to know where his/her order is, customer represantative can give up-to-date info about the order where abouts. Or the customer directly uses web to check the status of the order.
All these service can be provided by a CRM system, since drones can send its location to CRM systems.
Answer:
Case-based reasoning.
Explanation:
A database management system (DBMS) can be defined as a collection of software applications that typically enables computer users to create, store, modify, retrieve and manage data or informations in a database. Generally, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security.
A data dictionary can be defined as a centralized collection of information on a specific data such as attributes, names, fields and definitions that are being used in a computer database system.
In a data dictionary, data elements are combined into records, which are meaningful combinations of data elements that are included in data flows or retained in data stores.
This ultimately implies that, a data dictionary found in a computer database system typically contains the records about all the data elements (objects) such as data relationships with other elements, ownership, type, size, primary keys etc. This records are stored and communicated to other data when required or needed.
Basically, when a database management system (DBMS) receives data update requests from application programs, it simply instructs the operating system installed on a server to provide the requested data or informations.
Case-based reasoning is a problem-solving technique where each problem in a database is stored with a description and keywords that identify it. It is typically based on cognitive science and artificial intelligence.
You can measure it by the amount of automatisation. The bigger technological process the easier it is to automate systems.
