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BARSIC [14]
3 years ago
13

In two to three sentences, describe one advanced search strategy and how it is useful.

Computers and Technology
1 answer:
Sveta_85 [38]3 years ago
8 0

Answer:

A search stagey is useful because you can make complicated searches easily and also get reliable data.

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The waterfall model and spiral model are variations of SDLC. Do some research to find out what they are and explain how these mo
Radda [10]

Waterfall model and spiral model are used in software development life cycle or SDLC. Any software development process follows one of these models depending on the type of software and the requirements of the customer.

Waterfall model

This model is called as sequential model since it works in stages. The output of first stage becomes the input of the second stage.

The errors of the first stage can be rectified only when it is completed. This is time consuming and makes the process lengthy. Stage 1 is completed before stage 2 begins.

The six stages involved in waterfall model are Requirement Gathering and analysis, System Design, Implementation, Integration and Testing, Deployment of system, and Maintenance.

Spiral model

This model is implemented in iterations. It is also called evolutionary model.  

Initially a prototype of the system is prepared. Then, it is followed by development of small parts of the system.

These smaller parts are then assembled to produce the final system.

The four stages which form the spiral model are Identification, Design, Development and Evaluation and Risk Analysis.

The differences between the two models are summarized below.

1. Waterfall model works in linear method. Spiral model follows evolutionary method.

2. Errors and risks are discovered/ rectified after the stage is over. Errors and risks are discovered/ rectified earlier.

3. Waterfall model is suitable for small projects. Spiral model is suitable for large projects.

4. Requirements identification and planning is the initial stage in the waterfall model. Requirements identification and planning is done when needed, in the spiral model.

5. Waterfall model allows little to no flexibility in the system. Spiral model allows flexibility in the system.

6. Low flexibility makes the waterfall model more risky. High flexibility makes the spiral model less risky.

7. Waterfall model, overall, takes less time since requirements are clear. Spiral model is implemented when the requirements of the system are not clear and become clear through prototypes.

8 0
3 years ago
__________ is the electronic transmission of signals for communications, which enables organizations to carry out their processe
Serjik [45]

Telecommunications is the electronic transmission of signals for communications, which enables organizations to carry out their processes and tasks through effective computer networks

4 0
3 years ago
you crossed two heterozygous red flowers (dominant color), what are your chances to have a white flower
Lesechka [4]

Answer:

25% chance.

Explanation:

There is 25% chance it'll be h*m*zygous red, 50% chance it'll be h*t*rozygous red, and 25% chance it'll be h*m*zygous wh*te.

(Censored because it wouldn't let me post it for some reason. Honestly hope this doesn't work.)

4 0
3 years ago
Why Java Script uses the prefix Java in itsname?
kifflom [539]

Answer:

Java in JavaScript does not correspond to any relationship with Java programming language.

Explanation:

The prefix Java in Javascript is there for historical reasons.

The original internal name of Javascript when it was created by Brendan Eich at Netscape was Mocha. This was released to public as Livescript in 1995. The name Livescript was eventually changed to Javascript in Netscape Navigator 2.0 beta 3 release in December 1995 after Netscape entered into an agreement with Sun Microsystem. The primary purpose of change of name seemed to be as a marketing aid to benefit from the growing popularity of Java programming language at that time.

4 0
3 years ago
Why are computers assigned IP addresses
user100 [1]

Answer:

An Internet Protocol address (IP address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. An IP address serves two main functions: host or network interface identification and location addressing.

Explanation:

8 0
3 years ago
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