❖Communication practices: Principle 1 Listen: •Try to focus on the speaker‘s words, rather than formulating your response to those words. •Ask for clarification if something is unclear, but avoid constant interruptions. •Never become contentious in your words or actions (e.g., rolling your eyes or shaking your head) as a person is talking. Principle 2 Prepare before you communicate: •Spend the time to understand the problem before you meet with others. If necessary, perform some research to understand business domain. •If you have responsibility for conducting a meeting, prepare an agenda in advance of the meeting. Principle 3 someone should facilitate the activity: •Every communication meeting should have a leader (a facilitator) 1)To keep the conversation moving in a productive direction, 2)To mediate any conflict that does occur, and 3)To ensure that other principles are followed. Principle 4 Face-to-face communication is best: •It usually works better when some other represen...
What is Relational data model (RDM)
Relational data model:-In the concept of relational database that in a management system data is organized into tables. table are divided or into column and rows column represent the attributes of entity and row represent data or entities. A relational model is a powerful tools for a organizing and manipulating data and it is relatively int to understand
.Advantages of relational model
1.Simple and easy to use -starting data in table in much easier to under stand and implement as compared with other storage techniques.
2.Manage ability -Because of the indapendent natural of each relation in a relational data base it is easy to manipulates and manage this is a improve the performance of database
3.Data inigrity-The relational model can maintain data the intigrity in the database
.Disadvantages of relational model
The performance of relational model depends upon the number of relations present in data base.
If the number of table increase then requirement of physical memory increased. Because of this factors the cost of implementation is in creased and structure becomes complex
Data Automatically:-Any complete transaction in database is called as atomic unit DBMS complete transaction if any transaction is the creased partically complete them it will roll back to the initial state
Data concurrency:-concurrent access to data means move than one in user accessing a same data at a same time in the file system does not have any producer to stop concurrent where as database management system provide a locking system to stop the concurrent.
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