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Software Engineering

Software engineering is the process of applying well-developed techniques and practices in order to create new software products. Questions about everything from design patterns to requirements and specification belong here.

1,663 Questions

How data is represented in dbms?

Data is represented/organized in a dbms in the form of Schemas, tables, rows and columns

One DBMS may have multiple Schemas

One Schema may have multiple tables

One table may have multiple rows

One row may have multiple columns

If these tables are related to one another it forms a RDBMS - A Relational DBMS

Can engineering student join ICWA?

The letters ICWA stand for several organisations. It seems that none discriminate against engineers

How does software measurement affect software quality and productivity?

It depends on whether you are measuring things that are related to quality or not.

Figuring out what to measure can be very hard, but when you measure the correct things:

  • Measuring defect removal efficiency; productivity +20%, quality +30%
  • Measurement of bad fix injections; productivity +19%, quality +28%
  • Formal measurement programs; productivity +20%, quality +30%
  • Measurement of requirements changes; productivity +16%, quality +22%
  • Etc

Not measuring quality can lead to productivity falling 14% and quality by 19%.

If you measure the wrong things quality will NOT improve, i.e. there are organizations that focus on measuring:

  • lines of code
  • hours the developers put in

These are things that are easy to measure but have nothing to do with quality, it does not prevent many organizations from confusing measurement with quality improvement.

Where could one find more information on eCommerce software development?

One can find more information on the eCommerce software development from the following sources: Ahead Works, Axis Ware, Purple Tuesday, Zen Solutions, Flash Ecom, Contus, CS-Cart, Logic Spice, Smart Data Inc, to name a few.

What is Waterfall Solutions?

Waterfall is one of the software development life cycle model. Waterfall model has five stages.

What is email Id of RadhaKrishnan Koddakal of Philips India?

Radhakrishna is a name os person , koddakal is a sir name and philips is a company

What will you do if all IT industries get flushed out and you have no chance to do anything?

If that should ever happen, and it is very doubtful, then that would mean technology as collapsed. Considering that the Internet, networking, and computer software run the economies of the world it is very unlikely.

In other words, if that should happen then the entire world would be in trouble (and unemployed).

Of course, in any industry, if you find yourself out of work then it might be necessary to think about job retraining, depending on where the job demand might be.

What happens if a software program is not tested before deployment?

If it hasn't been tested at all, chances are it won't work at all and any possible customers will switch to a competitor's product.

If you have been reliant on unit testing for making sure your product works, it will probably work for some customers, but eventually hidden bugs and errors will emerge.

What is the difference between load and store for computer science?

LOAD-means to keep an instruction or prog on the memory i.e ram

STORE-means to keep the result or instruction or prog to a permanent location for further use

load means take a prog to memory.

store means save the prog to the parmanent memory

What is RAID fault tolerance?

Fault tolerance is the ability of a system to continue working even when a fault exists. In the case of RAID, which stands for Redundant Array of Inexpensive Discs, fault tolerance is provided by having data recorded on more than one drive, and also by having more than one power supply. Note that RAID 0 is not fault telerant because it is simply stripes the data to increase size and bandwidth, but provides no redundancy. RAID 1 and RAID 5 are fault tolerant, to various levels.

Is a 2-to-1 mux functionally complete?

Yes.

AND operation

= f(A,B) = AB = A'f(0,B) + Af(1,B)

= A'(0B) + A(1B) = A'0 + AB

OR operation

- f(A,B) = A+B = A'f(0,B) + Af(1,B)

= A'(0+B) + A(1+B) = A'B + A1

NOT operation

- f(A) = A' = A'f(0) + Af(1)

= A'(1) + A(0)

What is PVElite?

PV Elite is a software package from COADE, Inc. for the design and analysis of pressure vessels and heat exchangers. The package bi-directionally links to COADE CADWorx Plant Design Suite and COADE PV Fabricator for automation of the production of pressure vessel drawings.

What is Unit regression testing?

It is running the same tests that found the error again after an error has been fixed to ensure it has been fixed and no other errors have been introduced as a result of what was done.

What is the difference between Xvid and Divx?

They are two different implimentations of MPEG-4 video/audio.

When DivXNetworks didn't follow through with their promises of an open version, Xvid was created. Xvid is compatible with DivX. DivX is available on only certain systems. Xvid (deliberate reverse of DivX) is a open version available for every major system.

Both use patented technology, so you should check your country's laws before considering them.

What is address binding in operating systems?

A program, to be executed, must be brought to main memory. The instructions that use addresses in a program, must be bound to proper address space in main memory. Address binding is a scheme that performs this job. It can be thought as a mapping from one address space to another. There are bindings available as follows: Compile time binding Load time binding Execution time binding

What is fragmentation and defragmentation in memory management?

fragmentashon is a phenomena in which storage sapce is used inefficetively,reducing storage capacity

Who created the Lisp programming language?

Answer: John McCarthy.

Lisp was originally created as a practical mathematical notation for computer programs, based on Alonzo Church's lambda calculus. It quickly became the favored programming language for artificial intelligence (AI) research. (Wikipedia).

What is SCRS..?

A SCR is a Silcon Controlled Recifier. It is a four layer device that can be conceptually considered to be two transistors in latch up configuration. (Though not exactly) For an SCR, there will be no conduction between anode and cathode until the gate / cathode junction is biased on. At that point, the SCR will latch up and conduct from anode to cathode, regardless of further changes on the gate. This condition will persist until the anode / cathode voltage drops to zero. The SCR can be used as a half wave dimmer in an AC circuit. If you want full wave operation, you need to use a bridge rectifier around the SCR, or use a TRIAC/DIAC circuit.

Is computer science better now?

no , not yet . and it takes some time to recover. compare to computer science it is best to choose mechanical or civil or chemical

What is daemonlinks?

Daemonlinks is the name of a neural network framework algorithm created by Andrew H. Cooper in the winter of 1983.

What is the role of printed documents in communication today?

they create books, magazines, letters, postcards ... pretty much anything to do with paper!

Which institutes provide summer training for B.Tech 6Th semester students in Information Technology?

NIVT is an Industrial Training center affiliated to NCVT, DGE&T, Govt. of India under Ministry of Labour, the academic division of Novel Research and Development India Pvt. Ltd.The Project based summer/industrial training is a 6-8 weeks program incorporates training in .Net or Java/J2EE & PHP. The program includes classroom training, seminars, continuous support and coaching. NIVT is committed to ensure that the training helps the trainees/students to achieve their academic and career goals.

Course is commencing from: May, 2010

Course Venue: Kolkata

Course Timings: 3 days in a week/ 2 hours per day

For further information on the courses please visit our Website or feel free to get in touch with us.

NIVT

A Unit of Novel R&D India (P) Ltd.

BG-5, Sector-II, Saltlake City, Kolkata- 700091

Tel: 23217716/18

E-mail: info@nivtindia.com

url: www.nivtindia.com