• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Analysis Tools

Extracts from this document...

Introduction

Analysis tools There are a range of tools and techniques that can be used during the analysis stage of the system life cycle. The process of analysis only begins when the feasibility report has been developed and has been approved by the personnel within the organization. Analysis involves analysing the current system, and afterwards stating a number of solutions for the new system. Analytical Tools The following section describes the list of tools used within the analysis stage, along with an explanation of why it should or should not be used within the Perfect Pie scenario. Feasibility Study A feasibility study will allow the analyst to establish whether or not a proposal for the current system is worthwhile or feasible, this also allows the analyst reviewing the system, to highlight properties within computerization. Although a feasibility study will not instantly solve the problem, but it will allow a user to establish whether or not a proposed improved will be acceptable to the design of the new system. A feasibility report should consist of the following sections terms of reference, applications consider for three computerizations, system investigations, envisaged system requirements and lastly costs of implementation. A feasibility report should also include a brief description of the business and any problems with the existing system, details of the sections within the business that are going to be looked at, objectives of the proposed system, alternate solutions considered and why they were rejected, social/economic/technical factors, for example do staff need training and is the required technology available? If all these suggestions are taken into consideration, the feasibility should end with a decision on whether or not to proceed with the proposed design of the new system. ...read more.

Middle

For example other decision tables can use true or false, number alternatives, fuzzy logic or probabilistic representations. Although action entries can represent whether an action is to be performed, or in more advanced decision tables, the sequencing of actions to perform. A Decision table can be used if a combination of conditions is given. In decision table conditions are known as causes and seminal numbers of conditions are known as business rule. The following is a list of advantages associated with decision tables: 1. Decision tables are very easy to understand, for example, they can map nicely together to create a set of business rules. 2. Decision tables can be applied to real problems, for example analysis of the current system used within an organization. 3. Through use of a decision table, no prior assumptions can be made about/from the data, leaving other methods available or open for discussion. 4. Decision tables allow users to input and process both numerical and categorical data. The following is a list of disadvantages associated with decision tables: 1. In order for a decision table to be of any value as an analysis tool, all outputs within the decision table must be categorical. 2. Not only must the output be categorical but there can only be one limited output. 3. Creating a decision table from numeric datasets can be a complex operation. Perfect Pie and Decision Tables The Decision Table as an analysis tool within the Perfect Pie Scenario would not be suitable, since it would be non-beneficial. Although Decision Tables are very easy to understand, if one output in the decision was not categorical, it would be of value to the analysis of the current system, making the current process a waste of time. ...read more.

Conclusion

Problem definitions will always include a 'terms of reference' so the analyst can easily refer back to it for clarification. All problem definitions must include what the proposed system must achieve, different objectives should be taken on board, for example, the reduction of running costs, improved customer service (customer satisfaction at 100%) and lastly better mgt information, this will drastically improve decision making processes. The proposed system will come with restraints also, for example, the money available for the design of the new system (budget), and areas that mightn't need any improvements. All reports about the problem definition need to be documented, and clearly listed, for example, reports need by the administration staff, with any other outputs required. All problems with current system must be listed. The following states the advantages of Problem Definitions: 1. Both user and analyst are thinking of a solution for problems within the proposed system. 2. All problem definitions include 'terms of reference' which can be easily looked back on. The following states the disadvantages of Problem Definitions: 1. The process is very time consuming and the organizations budget could be decreased because of this i.e. financial risk. Perfect Pie and Problem Definition Problem Definition can be used as an analysis tool within the Perfect Pie Company. Although there are financial risks involved with the process, which may prove risky for the Perfect Pie Company, it is still a good analysis tool because both user and analyst can sit down together and draw up solutions for problems within the current/proposed system. Conclusion From looking at the various Analysis tools on offer, the most appropriate methods for the new system for Perfect Pie are Problem Definition, ERD, Data Flow Diagrams and Flowcharts. ?? ?? ?? ?? 1 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Information Systems and Communication section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Information Systems and Communication essays

  1. Marked by a teacher

    Database Coursework on a Vehicle Rental System: Analysis

    5 star(s)

    Schedule feasibility pertains to the amount of time that will be taken to develop the system relative to the time the organization would like it completed. Obviously if my system is going to require six months to be constructed and my client wants it completed in one month, it will not be possible.

  2. Marked by a teacher

    Assignment A: Analysis of Transactional Website

    3 star(s)

    The structure and navigation of the site is relatively easy to use and is well set out. The webpage has numerous navigation tools and links to other parts of the website, that all seem to work. The customer user interface works well, and overly is presented well with a good flow to it.

  1. Feasibility Report

    The printer will the administration staff within the Perfect Pie Company to print out letters, invoices, finical reports, of each pie filling, hot snacks, drinks, details of customers, and their orders, and many more. A scanner will allow important documents to be scanned on to the computer system as a

  2. System Analysis and Design Assignment

    Security Procedures - Who has access to the data? What privileges will they have? Will a firewall be necessary to protect data? All this work needs to be clearly documented using system flow charts - a graphical representation of how the system will work. This makes it easier to understand because it shows manual operations, hardware devices used and files involved.

  1. The data Processing Cycle and processing methods

    They also do conservatories, Doors and roofline products. The company has two large manufacturing facilities in Norwich, as well as branches around the UK. I am going to use payroll as an example of a data processing cycle. StayBrite employ hundreds of employees. First step is collecting all the information about the employees for example how many hours they have worked, if they did any overtime etc.

  2. Free essay

    The following report will outline how a business communicates effectively and efficiently within their ...

    They're convenient and easy to transport because you can put them onto a memory stick and then onto your chosen computer. Section 4 How information circulates within an organization Businesses such as Tesco and Argos use invoices because it indicates to the customer the products quantities, and agreed prices for products or services the seller has Provided the buyer.

  1. Free essay

    ICT organisation project

    details of a drinking survey conducted in the area and the effects of binge drinking. * Colourful image of a "shot" drink included at the bottom of the page. * Footer = Borough Life - 3 - Spring 2009 Page 4 * The continuation of page 3's title in WordArt "a knock on effect."

  2. Organisational Structure

    Age of the organisation If you set up as a hierarchical then you are likely to be an old organisation. If you're a flat structure or a matrix then you are going to be a new organisation. Technology In some businesses they use a lot of technology.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work