What is Software process framework And, Umbrella activities

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  ❖ Software generic process framework activities .   A process framework establishes the foundation for a complete software process by identifying a small number of framework activities that are applicable to all software projects, regardless of their size or complexity. • In fig each framework activity is populated by a set of software engineering actions. A collection of related tasks that produces a major software engineering work product. • Each action in process framework is populated with individual work tasks that accomplish some part of the work implied by the action. 1. Communication: Communication framework activity involves heavy communication and collaboration with the customer,encompasses requirements gathering, data gathering and other related activities. 2. Planning: Planning activity establishes a plan for software engineering work that follows. Planning describes the technical tasks to be conducted, the resources that will be required, schedule, and the risks...
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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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