Answer all of the questions below. Q.1.1 By using your own words, define a Subsystem and briefly discuss the importance (6) of dividing an information system into subsystems. Provide a real-life example of a system with one or more subsystems. Please use your own words. (6) Briefly explain the purpose of SDLC and discuss the importance of the first two core processes of the SDLC. Please use your own words. (4) Briefly explain what stakeholders are in system development and provide two examples. There are different types of events to consider when using the Event (4) Decomposition Technique. Define what the Event Decomposition Technique is and distinguish between external and state events. Q.1.2 Q.1.3 Q.1.4
Answers
A subsystem is a smaller component or module within a larger information system. SDLC (Software Development Life Cycle) is a process for developing software. Stakeholders in system development are individuals or groups affected by the system. Examples include end-users and project managers. Event Decomposition Technique is a method to identify and categorize events in system development.
1. A subsystem is a smaller component or module within a larger information system. It performs specific functions or tasks and interacts with other subsystems to achieve the system's overall objectives. Dividing a system into subsystems is important for several reasons. It aids in organizing and managing the complexity of the system, allows for specialization and division of labor among teams responsible for different subsystems, and facilitates modularity and reusability of components. A real-life example of a system with subsystems is a car. The car consists of various subsystems such as the engine, transmission, braking system, and electrical system, each performing distinct functions but working together to enable the car's overall operation.
2. SDLC (Software Development Life Cycle) is a structured process for developing software applications. The first two core processes of SDLC are requirements gathering and analysis. Requirements gathering involves identifying and understanding user needs, business objectives, and system requirements. Analysis involves analyzing gathered requirements, evaluating feasibility, and defining the scope of the project. These two processes are crucial as they lay the foundation for the entire development process. They ensure that project goals and user requirements are clearly understood, which helps in making informed decisions, setting project expectations, and guiding the subsequent development stages.
3. Stakeholders in system development are individuals or groups who have an interest in or are affected by the system being developed. They can include end-users, project managers, system owners, customers, and other relevant parties. Two examples of stakeholders could be the end-users of a new customer relationship management (CRM) software system who will directly interact with the system, and the project managers who are responsible for overseeing the system development process and ensuring its successful delivery.
4. Event Decomposition Technique is a method used in system development to identify and categorize events that impact the system. It involves breaking down events into their constituent parts and understanding their characteristics and relationships. External events originate from outside the system and trigger some action or response within the system. For example, a customer placing an order on an e-commerce website would be an external event triggering order processing within the system. State events, on the other hand, occur within the system itself, reflecting changes in the system's internal state or conditions. An example of a state event could be a change in the availability status of a product in an inventory management system.
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Related Questions
a binary number is an integer made up of only 0s and 1s. for example, 110111101 is a binary number. what is the smallest binary number divisible by 225?
Answers
The smallest binary number that is divisible by 225 is 1110001000.
A binary number is an integer that is made up of only 0s and 1s. It is a numeral system based on the binary system. The decimal system, which is based on 10, is what we use every day. The binary system, on the other hand, is based on 2. Any integer in the decimal system can be converted to the binary system with ease. Decimal numbers are translated to binary numbers by converting the decimal number to a binary number system by representing it in the powers of 2. The method of repeated division by 2 is used to convert decimal numbers to binary numbers. Given 225 is a 5 × 3 × 5 × 3. So, for any number to be divisible by 225, it must be divisible by 5 × 5 × 3 × 3. For the number to be divisible by 5, the last digit of the binary number must be 0.
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Create a method addVehicle which takes fields of Vehicle in the order of number,name,price and adds the same to Vehicle list if there is no object present in the list with same value of number. The above method should throw the exception.Handle the exception in the main method. Return -1 if there is an object with the same value of number else return the total count of Vehicle objects in the list. Create a class CustomerDemo with a main method.Create an object of Customer and call the above method from the main method.
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The method add Vehicle in the class Customer Demo should be called from the main method of the Customer Demo class.
How can the add Vehicle method be implemented to fulfill the given requirements?To implement the add Vehicle method, you can follow these steps:
1. Create an ArrayList to store the Vehicle objects.
2. Define the add Vehicle method with the required parameters: number, name, and price.
3. In the add Vehicle method, iterate through the list of vehicles and check if any vehicle object already has the same value of the number field. If found, throw an exception.
4. If no vehicle object is found with the same number, create a new Vehicle object using the provided fields and add it to the list.
5. After the loop, check the size of the vehicle list. If it has increased, return the new count of Vehicle objects.
6. If the size remains the same, return -1 to indicate that a vehicle with the same number already exists in the list.
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I need some help with this project. The picture of the assignment is above
Answers
Answer:
sorry
Explanation:
you need to do this on your own Wahhabi
but if you sub to my you-tube channel at chris got ha,x i will help you out
When this logic block is included in a control structure, what must be the
case for the entire condition to be met?
and
OA. One or both of the conditions must be true.
OB. Only one of the conditions must be true.
C. Both conditions must be true.
OD. Neither condition must be true.
CUR
Answers
When this logic block is included in a control structure, for the entire condition to be met, " One or both of the conditions must be true." (Option A)
What is a Control Structure?The sequence in which individual statements, instructions, or function calls in an imperative program are performed or evaluated is referred to as control flow in computer science. An imperative programming language is distinguished from a descriptive programming language by its emphasis on explicit control flow.
In structured programming, there are three basic control structures. Structure of Sequence Control: This refers to line-by-line execution, in which statements are run in the same sequence as they occur in the script.
In C, there are four types of control statements:
Statements of decision-making (if, if-else)Statements of choice (switch-case)Statements of iteration (for, while, do-while)jump Statements (break, continue, goto)In other words, control statements allow users to determine the sequence in which instructions in a program are executed. These enable the computer to make certain decisions, do particular activities repeatedly, or even go from one piece of code to another.
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Answer:
I think your asking the and one
the answer to that is
both conditions must be true
i just did it
Explanation:
how is the reduction from machine coordinates to image coordinates established in images captured by analog cameras?
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The central row and column define it. Use the equations to transform the X and Y coordinates and use the results for calculations.
What is the image's coordinate system?A fundamental picture serves as the spatial reference in an image coordinate system. Other pictures and features can be projected to overlap with the primary image using its image coordinate system, and a primary image presented in its own image coordinate system exhibits no distortions.
What distinguishes world coordinates from those on a computer screen?The positions of groups of points (objects) in relation to a single, globally common standard zero point are known as world coordinates. Viewing Angle: the scene's overall position with respect to a camera. Device Coordinates: Any location on the X and Y axes between -1 and 1. (and Z too for 3D).
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It is frightening, and even dangerous, to come back to a dark house at the end of a working day. There are many different types of outdoor lights on the market. Emily wants the outdoor lights at her home to be on in the evenings when she comes from work. She does not want to leave the lights on all day as this will be a waste of electricity and unnecessarily expensive. She needs some type of device that detects the fading daylight. This will cause her outside house lights to switch on automatically once the correct level of darkness has been reached.
motivate what kind of system is needed?
Answers
Which item best describes fiber optic transmission?
a
analog signals sent through tiny glass strands
b
signals carried on electromagnetic waves
c
light pulses sent through tiny glass strands
d
light pulses sent through copper wires
Answers
Answer:
a
Explanation:
analog signal sent through tiny glass strands
Why does the use of drop-down menus, help mitigate against test integrity checks risks?.
Answers
The use of drop-down menus, helps mitigate against test integrity checks risks
Take time to design your location’s information architecture (IA) and navigation structure.Test your site’s navigation structure with users not acquainted with your site. Even just one or two people can supply you with useful feedback.Use landing pages to present your offerings and take advantage of sidebar navigation.What is the use of drop down button?
A dropdown button lets the user select from several items. The button shows the currently specified item as well as an arrow that opens a menu for choosing another item.
Offering drop-down menus can help users avoid scrolling and can quickly get them entrance to your site's content. For large websites, drop-down menus can save users time by permitting them to jump down a level or two to get to the range they seek
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1. What is being decided when information is evaluated?
2. List and describe the two steps you can use to break down into its arguments
3. Why does confusing and uncertain need to be clarified?
4. What are some causes for confusion and uncertainty in an argument?
(Can someone help me out plz)
Answers
Answer:
1. Once you found information that matches the topic and requirements of your research, you should analyze or evaluate these information sources. Evaluating information encourages you to think critically about the reliability, validly, accurately, authority, timeliness, point of view or bias of information sources.
2. The first step of evaluating an argument is making an inference connection. The second step is asserting premise acceptability. 2 questions to ask is (1) Is this argument valid and (2) Is this argument sound or unsound.
Consider the following code:
s = [63, 72, 21, 90, 64, 67, 34]
s.sort(reverse = True)
print(s)
What is output?
[21, 34, 63, 64, 67, 72, 90]
[90, 72, 67, 64, 63, 34,21].
[63, 72, 21, 90, 64, 67, 34]
[34, 67, 64, 90, 21, 72, 63]
Answers
Answer:
[90, 72, 67, 64, 63, 34,21]
Explanation:
Sorting puts numbers in ascending order, reverse = True switches that to descending.
Could Anyone help me with these two questions?
Answers
Answer:1st is b
2nd is d
Explanation:
using a computer screen with poor resolution or glare problems could cause which problem?
Answers
Using a computer screen with poor resolution or glare problems could cause eye strain or eye fatigue.
Eye strain:
Eye strain is a very common condition in which eyes feel exhausted, and it can be caused by using a computer screen with poor resolution or glare problems.Using computer screens for an extended period, reading, driving, watching television, or anything else that involves intense use of eyes for an extended period can cause eye strain.Symptoms of eye strain:
The symptoms of eye strain include headache, blurred vision, dry eyes, redness in eyes, double vision, difficulty in concentrating, neck, shoulder, and back pain. If the individual is suffering from eye strain, they can try taking breaks and blink their eyes frequently to avoid eye fatigue and reduce strain on the eyes.Additionally, it is always suggested to take an eye exam from an ophthalmologist to detect any underlying issue or weakness in the eyes.
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All of the following are good ways to reduce distractions when studying except.
A) Turning off the tv
B) sitting in a quiet place
C) sitting away form the window
Last by not least
D) Listening to music
Answers
Answer:
D
Explanation:
Music puts us in a better mood, which makes us better at studying, but it also distracts us, which makes us worse at studying.
Explanation: some types of music are very distracting
the compact disc drive it belongs to a.input b.output c.storage device
Answers
Answer:
c.storage device
Explanation:
two communicating devices are using a single-bit even parity check for error detection. the transmitter sends 10101010 and, because of channel noise, the receiver gets 10011010. will the receiver detect the error? why or why not?
Answers
In this scenario, the two communicating devices are using a single-bit even parity check for error detection. The transmitter sends 10101010 and the receiver gets 10011010 due to channel noise. The question is whether the receiver will detect the error or not.
To understand the answer, we need to understand what single-bit even parity check is. In this method, an additional bit is added to each block of data, which is set to 0 or 1 depending on the number of 1s in the data block. If the number of 1s is even, the parity bit is set to 0, and if it is odd, the parity bit is set to 1. When the receiver receives the data block, it checks the parity bit to see if the number of 1s in the block is even or odd. If the number of 1s is not the same as the parity bit, the receiver knows that an error has occurred.
In this case, the original data block sent by the transmitter was 10101010. The number of 1s in this block is even, so the parity bit is set to 0. When the receiver gets the data block, it calculates the number of 1s, which is three. Since three is an odd number, the parity bit should have been set to 1. Therefore, the receiver will detect the error, and it will know that the data block has been corrupted due to channel noise.
In conclusion, the receiver will detect the error in this scenario, as the parity bit does not match the number of 1s in the data block. This is how single-bit even parity check works to detect errors in data communication.
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Select the correct answer.
Which of these practices should you avoid in navigation design?
O A. linking the organization logo to the home page
O B. providing users with different types of navigation elements
OC. providing users with as many choices as space allows
OD. using metaphor to represent real-life objects
Answers
Answer:
C
Explanation:
Coming from a purely practical point of view, providing users with as many choices as space allows is a bad idea. You do not want to overwhelm a navigation bar with too many options, especially not "as many choices as space allows". You should keep them short and if need be, categorised.
Hope this helps!
write a Python function that join the two string and print it
Answers
Answer:
string1 = "this is string 1"
string2 = " this is string 2"
print(string1 + string2)
Explanation:
the string1 variable is assigned with a string value(aka. str)
string2 is also a variable assigned with a slightly different string value
the 3rd line then prints string 1 and 2 to the console.
Answer:
Nothing complicated
See attached images
Which of the following data structures can erase from its beginning or its end in O(1) time?
Answers
Where all "the following" i can help you but you said which of the folllowing and ther no picture or anything?
The stack data structure can erase from its beginning or its end in O(1) time.
The O(1) complexity is an illustration of getting operations done in a constant time.
Stack data structure uses the push and pop operations for inserting and deleting items in a linear or constant time.
This implies that, inserting an item into a stack happens in O(1) time, and also; removing an item from the stack, irrespective of the item location (beginning, end, or in between) happens in O(1) time.
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why is it important to write something in the subject line of emails?
Answers
Answer:To provide a topic for whatever is in your email
Explanation: without something in the subject line the email will most likely be inferred as a spam.
middle of test help pls
Which of the following could be a possibility in the future?
A voice-activated computers
B computerized glasses
C holographic messages
D computerized watches
Answers
Answer:
I'm thinking d
Explanation:
i dont think we are advanced enough to do a,b, or c.
so imma say d
Answer:
all
Explanation:
What type of loop allows you to indicate the starting value for the loop control variable, the test condition that controls loop entry, and the expression that alters the loop control variable, all in one convenient place
Answers
Answer:
I think it's a for loop.
A for loop looks like:
for (starting statement; condition that is true; condition applied to iteration)
Explanation:
I need help! Please please
Answers
The correct answers are given as:
Turning the lens dial clockwiseManual settingsToneFile formatJPEG or RAWThe given questions had to do with taking photos, photography, and the likes and how lenses are used to capture images, and file formats are used to select the size and quality of images.
What is Photography?This refers to the art of taking pictures in a background in a bid to make still images.
Hence, we can see that The correct answers are given:
Turning the lens dial clockwiseManual settingsToneFile formatJPEG or RAWThe given questions had to do with taking photos, photography, and the likes and how lenses are used to capture images, and file formats are used to select the size and quality of images.
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(n) __________________________ is an input component on a web form that permits a user to agree to receive specified services and provisions
Answers
Answer:
Checkbox Input
Explanation:
the value in this type of local variable persists between function calls._____
Answers
Answer:
lotería sturnds
Explanation:
una de los más fuertes del mercado
Evonka is listening to music from an online music provider (such as Pandora or Jango). She builds a list of music preferences, including favorite songs. The music service then suggests additional songs she might enjoy. The music provider is an example of a cloud-computing application that uses a technology for collaborative filtering, which helps define the list of songs available to listeners. Which term describes this technology?
Group of answer choices
Bit-Torrent
Grid Computing
Software as a Service
Crowdsourcing
Answers
Answer:
D. Crowdsourcing
Explanation:
Crowdsourcing can be defined as a collaborative process which typically involves completing a project (task) and solving a problem through a group of people (crowd) that are geographically dispersed over the internet.
Basically, crowdsourcing refers to an outsourcing technique which allows a project or task to be jointly completed by a group of people (crowd) such as volunteers or freelancers who are made to work remotely over the internet.
In this scenario, an online music provider such as Pandora or Jango uses crowdsourcing for collaborative filtering, which helps define the list of songs available to listeners.
According to the cloze notes, what is an antigen? *
Answers
Answer:
hope this helped i pretty sure is A
Explanation:
Antigen, substance that is capable of stimulating an immune response, specifically activating lymphocytes, which are the body's infection-fighting white blood cells. In general, two main divisions of antigens are recognized: foreign antigens (or heteroantigens) and autoantigens (or self-antigens).
A computer configured to use DHCP cannot locate a DHCP server. Automatic Private IP Address (APIPA) will assign which of the following addresses? a) 172.16.1.25 b) 192.168.1.25 c)169.254.1.25 d)10.16.1.25
Answers
If a computer configured to use DHCP cannot locate a DHCP server, it will automatically assign an Automatic Private IP Address (APIPA).
An APIPA address falls within the range of 169.254.0.1 to 169.254.255.254. Therefore, the correct answer to the given question is option c) 169.254.1.25. It is important to note that an APIPA address is only used as a temporary solution until a DHCP server can be located and assigned a proper IP address. It is not recommended to rely on APIPA addresses for an extended period of time, as they can cause connectivity issues with other devices on the network.
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a town with 1800 homes was surveyed. of the 360 who answered the survey, 48 did not have computers at home. On the basis of the survey, estimate how many total homes do not have computers at home.
URGENT!!!!
Answers
Answer:
48
Explanation:
48 is the correct answer of that question
Which computer is the fastest to process complex data?
Answers
Answer:
Supercomputers for sure.
can some please help
why was it made
Answers
Answer:
papa bill needed money
Explanation: