Software Engineering

I will try to answer this quickly as I don't have much time.

As the name suggests, the waterfall model follows the path of an waterfall. It starts in the first stage of orientation, and ends at the release. It can only go one way (to the end goal) and the stages are very strict (you cant go back to a earlier stage).

The Spiral model understands that reality doesn't always follow theory, and that an project should be designed to follow that reality. There are multiple prototypes released, and phases can be repeated until the desired result is reached (hence the spiral).

The iterative model combines those two, making (IMHO) the waterfall model more ready for the real world.

You should try googling yourself, I found lots of info about the differences in this article about the advantages of the waterfall model: http://www.waterfall-model.com/the-waterfall-model-avantages-and-disadvantages

Two Phase locking protocol prevent deadlock. This protocol maintain the schedule which lock should be granted or not. For more information I think this link help you.

http://www.databaseidea.com/2012/03/two-phase-locking-protocol.html

The development of the National Railway System in the United States took place in 1916. This aimed to reduce the cost of moving goods to distant markets.

There are quite a few different advantages and disadvantages of using flow charts instead of text-based programming. One pro is that this is a visual aid that helps explain your ideas.

spiral model is just like incremental model but in spiral emphasize is on risk analysis.

bhosdike

Software QA (quality assurance) engineers are individuals who monitor every phase of the software development process so as to ensure design quality, making sure that the software adheres to the standards set by the development company.

Sometimes software quality assurance engineers are confused with software testers, which is a mistake. Software testers test parts of the software at different stages of development, whereas a software quality assurance engineer oversees the entire development process, which includes software testing, from start to finish. The monetary success of the software product is largely due in part to the quality of the product as well as the product's ability to hit the market on time. Both are the responsibility of the software quality assurance engineer.

The Certificate Revocation List (CRL) is a list of certificates that were issued by a Certificate Authority (CA) and then subsequently revoked. The validator of a certificate is expected to search the CRL for that CA before accepting the certificate as valid.

Give team members more control over process and technical decisions

A: Well that is not possible. Someone can change the voltage up or down with no problem but never can it increase power by adding any kind of circuitry for the simple fact of % efficiency loss. If it could be possible then we have infinite power source available.

§Test-Driven Development (TDD) = Refactoring + TFD

§TDD is a just-in-time (JIT) specification activity

§TDD is a continuous confirmatory validation activity

§TDD via Customer/Acceptance Tests

4Specification of requirements

§TDD via Developer Tests

4Specification of design

§TDD is also called Behavior Driven Development (BDD)

SCM repository systems are based on a simple idea: the definitive copies of your files are kept in a central repository. People check out copies of files from the repository, work on those copies, and then check them back in when they are finished. SCM systems manage and track revisions by multiple people against a single master set.

Requirements validation is a critical step in the development process, usually after requirements engineering or requirements analysis. Also at delivery (client acceptance test).

The computational process of automatically determining what feelings a writer is expressing in the text is known as sentiment analysis. Sentiment Analysis is a method of gathering opinions with various scores, such as positive, negative, or neutral. The mood is sometimes expressed as a binary distinction (good vs. negative), but it can also be more nuanced, such as describing the exact emotion expressed by an author (like fear, joy or anger).

Learn more about sentiment analysis at Learnbay institute.

A machine can measure either from the zero point, or from the last position that was. For example, when you say "X10", you mean 10mm from the zero point of the axis X, or you may mean 10mm further than the last position the machine was on the X axis. The way of measuring is decided from the G codes G90 and G91. Running the G90 command, the machine will start to measure using absolute coordinates (measuring from the zero point of the axis) and running the G91 command will set the machine into "incremental measuring".

For making matters more clear, see the following two examples. They generate both exactly the same thing, a rectangle as shown in file p7.jpg. The first code example uses absolute measurements and the second uses incremental measurements. At this point it should be said that almost all machines measures by default using G90 (absolute coordinates). For the following example, we suppose that somehow, the machines start from point 10,10 and not 0,0

REM --- a rectangle drawn using absolute coordinates ---

G90 ; Set absolute measurement

G1 Y80

G1 X80

G1 Y10

G1 X10

REM --- a rectangle drawn using incremental coordinates ---

G91 ;Set incremental measurement

G1 Y70

G1 X70

G1 Y-70

G1 X-70

In this forging method, very big forgings are made by working different areas of the forging in to shape, one at a time.

business area analysis

rad model is used when there is a time constraint............ this model is suitable for big projects where the customer requirements are clear

Procedural design is when the programmer specifies what must be done and in what sequence. It is based on the concept of the modularity and scope of program code.

the goal of write assembly cache is to assemble writes so that they can be transmitted to memory in an orderly way.

It should only specify what the system should do and refrain from stating how to do these. This means that the SRS document should specify the external behavior of the system and not discuss the implementation issues. The SRS document should view the system to be developed as black box, and should specify the externally visible behavior of the system. For this reason, the SRS document is also called the black-box specification of a system.

Yes. They are, for all practical purposes, a cell phone. If you had one stolen, report it to the police and the carrier, giving them the ESN and phone number.