What is Software process framework And, Umbrella activities

Image
  ❖ 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...
Post a Comment

What is Not Null Constraint

Not Null Constraint

Database many have same mandatory attributes 

.Ex-mobile no, email Id, Address is mandatory when new user for the registration, These attributes in a database are not allowed null in values 

.In a student table, student first name and last name are mandatory are middle name many be optional 

.syntax-Create table table name (column name datatype (size) not null

.Create table student (first name varchar (255) not null, middle name, varchar (255), last name varchar (255) not null);

.In database management system inserting null values can prevent by using not null constraint, same attributes in database are not allowed to contain null values that null value are unknown or missing same in attribute value in above example student first name and last name is not null there fore first name column and last name column required 

Comments

Post a Comment

Popular posts from this blog

What is Computer engineering, complete information

Image
                                                                           Computer Engineering Computer Engineering is an engineering branch that is a combination of Computer Science and Electronics Engineering. Digital logic in design computer organization and architecture microprocessor in the system and interfacing computer networks and operating system. In this you learn the design, development and maintenance of both hardware (physical parts of the computer) and software (programs, applications, operating systems). 1.Scope of Computer Engineering    . Computer Engineering students are taught these things: . Computer Hardware Design :-CPU circuit boards microcontrollers,    embedded systems.                        ...
Read more

What is Constants, Variables, and Data Types

Image
                                          Constants   Constants in java refer to fixed values do not change during the execution of a program , Java support several types  of constants as illustrated. .Integer  Constants      An integer constant refer to a sequence of digits , There are three types integers .namely decimal imager octal integers and hexadecimals integers . Decimal integers consist of a set of thing preceded by an optional minus sign Valid of decimals integer constant  .Variables  A variable is an identifier that denotes a storage location seed to store a data value unlike constant that remain unchanged during the execution of a program , a variable may take different values at different times during the execution of the program ,we had used several variable for instance , we used variables length and breath to store the values o...
Read more

What is Diploma Engineering and How to Diploma engineering free course

Image
What is diploma in engineering is  a 3 year  course .All India  It is designed to students with practical skills and knowledge in a engineering.  After completing the diploma, students further education through into a bachelor's degree program or enter the diploma in engineering course   1.School Level (Class 10 )   .Focus on Math Science Physics and Chemistry - MSPC   . After class 10, you will have to take science stream. 2 .11th-12th Science Stream (MSPC Group)    .Physics, Chemistry, Mathematics (PCM) are compulsory subjects.    .You should prepare for entrance exams like JEE, MAHT-SET, VIT, BITSAT.   .You have to clear these exams after class 12. 3.Duration: 4 years   .Popular branches:   . Diploma in computer Science (CSE)   .  Diploma in m echanical   . Diploma in  civil   . Diploma in  electrical   . Diploma in  Electronics & Communication   . Diploma in...
Read more