The question should be answered only by categorizing each of the requirements ei

Question

The question should be answered only by categorizing each of the requirements either as Functional Requreirement,Non Functional Requirement ,Design Decision or Design Objective.

Kindly identify the requirements for EACH option and explain your reasoning for the choice.

1.2Define every category by analysing the following client-requirement document to design an information system for a Video rental Store a) The computer system should track the document flow of the store b) Software package must comply with IEEE standards c) Control information must be supplied regularly for management d) Customer's details should be accepted as input of the system e) The windows XP operating system should be used T) Customer can order a video in my medium, tape, DVD and so on g) The Rental charge may vary by medium h) On completion of a rental, the customer receives a transaction report. ) The store accepts only cash payments j) Records of the following lists in a computer system are to be organized sequentially a. List of the video b. List of the customer k) The system should permit easy and efficient maintenance I) The clerk of the Store must log in to the system m) The design of the software package should be accomplished in two months. n) The size of the database should be less than 2 gigabytes

Explanation / Answer

Information systemsinputprocessoutputstorageIPOS

Input is anything we wish to embed in a system for some type of use. A variety of sources are used to input: keyboard, scanner, microphone, mouse, even another computer. What we input has a purpose - but until it is processed and generated in some form of output, it doesn't do us much good.

Processing takes place in the internal parts of the computer. It is the act of taking inputted data and converting it to something usable. What we typically see on the screen in today's computer world (known as what you see is what you get or WYSIWYG) is the result of our input being processed by some program so we can have usable output: an English paper, an edited photograph, this video you're watching.

Output, or processed information in a usable format, comes in many different forms: monitor or printer for visual work, a speaker for audio. Sometimes our output is short-term, such as printing a photo, and sometimes what we work on needs to be kept around for a while. That's where storage comes in.

Storage is the term used to indicate we will be saving data for a period of time. We store for many reasons: for future reference; to prevent full loss of data; because we forget to purge. But, storage is vital. There are several mediums on which we can keep output and processed data: a hard disk, a USB drive, a CD.

Here are two anecdotes to drive that point home. Someone lost an entire season of her son playing hockey because she didn't back-up the video and photo files. And a fellow student was working on a year-long bachelor's thesis and did not back it up the first, the second or the third time she lost it - all at different stages of completion, with a thesis over 60 pages long when she was done.

Quick - what does IPOS stand for? That's right, input, process, output and store! Besides the four functions of IPOS, an information system also requires feedback. This is how future systems are revised and rebuilt - by receiving ideas, impressions and constructive (or not so constructive) criticism by users and other stakeholders.Information systemsinputprocessoutputstorageIPOS

Input is anything we wish to embed in a system for some type of use. A variety of sources are used to input: keyboard, scanner, microphone, mouse, even another computer. What we input has a purpose - but until it is processed and generated in some form of output, it doesn't do us much good.

Processing takes place in the internal parts of the computer. It is the act of taking inputted data and converting it to something usable. What we typically see on the screen in today's computer world (known as what you see is what you get or WYSIWYG) is the result of our input being processed by some program so we can have usable output: an English paper, an edited photograph, this video you're watching.

Output, or processed information in a usable format, comes in many different forms: monitor or printer for visual work, a speaker for audio. Sometimes our output is short-term, such as printing a photo, and sometimes what we work on needs to be kept around for a while. That's where storage comes in.

Storage is the term used to indicate we will be saving data for a period of time. We store for many reasons: for future reference; to prevent full loss of data; because we forget to purge. But, storage is vital. There are several mediums on which we can keep output and processed data: a hard disk, a USB drive, a CD.

Here are two anecdotes to drive that point home. Someone lost an entire season of her son playing hockey because she didn't back-up the video and photo files. And a fellow student was working on a year-long bachelor's thesis and did not back it up the first, the second or the third time she lost it - all at different stages of completion, with a thesis over 60 pages long when she was done.

Quick - what does IPOS stand for? That's right, input, process, output and store! Besides the four functions of IPOS, an information system also requires feedback. This is how future systems are revised and rebuilt - by receiving ideas, impressions and constructive (or not so constructive) criticism by users and other stakeholders.

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