Software Quality Assurance in software engineering

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Software Quality Assurance (SQA):-  SQA is a set of activity assuring quality in software engineering process. Altimetry result in quality in software products. It include a following activities:- Process definition & implementation Auditing  Training  SQA is a process that insure hat developed software needs & compiles with defined or standardized quality specification. SQA is an on going process with in the SDLC that routinely checks the developed software to insure its needs desired quality measured. SQA helps to insure the development of high quality software. SQA practices are implementation in most type of software development regardless of underline software development model are being used. In a border sense SQA incorporate an implement software testing methodology to test software. SQA process test for quality in each phase of development until the software is completed. SQA genially works on one or more industries standards that helps in building softwar...
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Types of attributes in DBMS, derived, single valued, simple, multivalued, stored, composite

 Types of Attributes:-

Simple Attribute:- 

The attributes that cannot be further divided in to smaller part an represents the basic meaning is called a simple attributes. Eg:- Age attributes of person entity represent a simple attribute.

Composite Attribute:- 

Attribute that can be further divided into smaller unit & each individual unit contains a specific meaning. Eg:- Name attribute of an employ can be sub divided.

Multivalued Attribute:- 

Attribute that have more than one values for a particular entity is called a multivalued attributes. Eg:- Phone no. for a person entity is a multivalued entity.

Stored Attributes:-

 Attribute that are directly stored attribute. Eg:- Date of joining attributes of employ entity.

 Single valued attribute:-

 Attribute having a single value for a particular entity. Eg:- Age is an single valued attribute of a student entity.

Derived Attribute:- 

Attributes are not stored directly but  can be derived from stored attributes are called derived attributes. 



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